ENGINEERING SURVEYING
1. The curvature of the earth's surface, is
taken into account only if the extent of survey is more than
A. 100 sq km B. 160 sq km C. 200 sq km D. 260
sq km.
Answer =>
D
2. The difference in the lengths of an arc and
its subtended chord on the earth surface for a distance of 18.2 km, is only
A. 1 cm
B. 5 cm
C. 10 cm
D. 100 cm.
Answer =>
C
3. In
geodetic surveys higher accuracy is achieved, if
A. curvature
of the earth surface is ignored
B. curvature
of the earth surface is taken into account
C. angles
between the curved lines are treated as plane angles
D. none of
these.
Answer =>
B
4.
Hydrographic surveys deal with the mapping of
A. large
water bodies
B. heavenly
bodies
C. mountainous
region
D. canal
system
Answer =>
A
5. Surveys
which are carried out to depict mountains, rivers, water bodies, wooded areas
and other cultural details, are known as
A. cadastral
surveys
B. city
surveys
C.
topographical surveys
D. guide map
surveys
Answer =>
C
6. Surveys
which are carried out to provide a national grid of control for preparation of
accurate maps of large areas, are known
A. plane
surveys
B. geodetic
surveys
C.
geographical surveys
D.
topographical surveys.
Answer =>
B
7. The main
principle of surveying is to work
A. from part
to the whole
B. from whole
to the part
C. from
higher level to the lower level
D. from
lower level to higher level.
Answer =>
B
8.
Systematic errors are those errors
A. which
cannot be recognized
B. whose
character is understood
C. whose
effects are cumulative and can be eliminated
D. none of
these.
Answer =>
C
9. If the
smallest division of a vernier is longer than the smallest division of its
primary scale, the vernier is known as
A. direct
vernier
B. double
vernier
C.
retrograde vernier
D. simple
vernier.
Answer =>
C
10. The
least count of a vernier scale is
A. sum of
the smallest divisions of main and vernier scales value of one division of the
primary scale divided by total number of divisions of vernier scale
B. value of
one division of vernier scale divided by total number of divisions of primary
scale
C. all the
above.
D. none of
these.
Answer =>
B
11. On a
diagonal scale, it is possible to read up to
A. one
dimension
B. two
dimensions
C. three
dimensions
D. four
dimensions.
Answer =>
C
12. In case
of a direct vernier scale
A.
graduations increase in opposite direction in which graduations of the main
scale increase
B. smallest
division is longer than smallest division of the main scale
C.
graduations increase in the same direction in which graduations of the main
scale increase
D. none of
these.
Answer =>
C
13. Short
offsets are measured with
A. an
ordinary chain
B. an invar
tape
C. a
metallic tape
D. a steel
tape.
Answer =>
A
14. Greater
accuracy in linear measurements, is obtained by
A.
tacheometry
B. direct
chaining
C. direct
taping
D. all the
above.
Answer =>
C
15. It is
more difficult to obtain good results while measuring horizontal distance by
stepping
A. up-hill
B. down-hill
C. in low
undulations
D. in plane
areas.
Answer =>
A
16. The
distance between steps for measuring down hill to obtain better accuracy
A. decreases
with decrease of slope
B. increases
with increase of slope
C. decreases
with increase of slope
D. decreases
with decrease of weight of the chain.
Answer =>
C
17. The
correction to be applied to each 30 metre chain length along 00 slope, is
A. 30 (sec 0
? 1) m
B. 3-0 (sin
0 ? 1) m
C. 30 (cos 0
? 1) m
D. 30 (tan 0
? 1) m
Answer =>
A
18. The
slope correction for a length of 30 m along a gradient of 1 in 20, is
A. 3.75 cm
B. 0.375 cm
C. 37.5 cm
D. 2.75 cm.
Answer =>
A
19. Correct
distance obtained by an erroneous chain is : Erroneous chain length
A. Correct
chain length x Observed distance
B. Correct
chain length Erroneous chain length x Observed distance Correct chain length
C. Observed
distance x Erroneous chain length f these.
D.m chain
diverges through a perpendicular dis-its correct alignment, the error in length
Answer =>
A
20. If the
length of a chain line along a slope of 00 is 1, the required slope correction
is
A. 21 cos.`
0/2
B. 21 sin2
0/2
C. 1 tan2
0/2
D. 1 cos2
0/2.
Answer =>
B
21.
Correction per chain length of 100 links along a slope of a radians, is
A. 100 a2
B. 100 a
C. 100 a3
D. 100 cc-1.
Answer =>
B
22. While
measuring a chain line between two stations A and B intervened by a raised
ground
A. vision
gets obstructed
B. chaining
gets obstructed
C. both
vision and chaining get obstructed
D. all the
above.
Answer =>
A
23.
Prolongation of chain line across an obstruction in chain surveying, is done by
A. making
angular measurements
B. drawing
perpendiculars with a chain
C. solution
of triangles
D. all the
above.
Answer =>
B
24. In chain
surveying tie lines are primarily provided
A. to check
the accuracy of the survey
B. to take
offsets for detail survey
C. to avoid
long offsets from chain lines
D. to
increase the number of chain lines.
Answer =>
C
25. In chain
surveying field work is limited to
A. linear
measurements only
B. angular
measurements only
C. both
linear and angular measurements
D. all the
above.
Answer =>
A
26. Check
lines (or proof lines) in Chain Surveying, are essentially required
A. to plot
the chain lines
B. to plot
the offsets
C. to
indicate the accuracy of the survey work
D. to
increase the out-turn
Answer =>
C
27. A well
conditioned triangle has no angle less than
A. 20?
B. 30?
C.450
D. 60?.
Answer =>
B
28. The
accuracy of measurement in chain surveying, does not depend upon
A. length of
the offset
B. scale of
the plotting
C.
importance of the features
D. general
layout of the chain lines.
Answer =>
D
29. The
limiting length of an offset does not depend upon
A. accuracy
of the work
B. method of
setting out perpendiculars
C. scale of
plotting
D.
indefinite features to be surveyed.
Answer =>
D
30. Chain
surveying is well adopted for
A. small areas
in open ground
B. small
areas with crowded details
C. large
areas with simple details
D. large
areas with difficult details.
Answer =>
A
31. The
angle between two plane mirrors of optical square, is
A. 20?
B. 30?
C. 45?
D. 60?
Answer =>
C
32. An angles
of 45? with a chain line may be set out with
A. optical
square
B. open
cross staff
C. Fench
cross staff
D. prismatic
square.
Answer =>
C
33. For
taking offsets with an optical square on the right hand side of the chain line,
it is held
A. by right
hand upside down
B. by left
hand upright
C. by right
hand upright
D. by left
hand up side down.
Answer =>
B
34. If the
chain line which runs along N-S direction is horizontal and the ground in E-W
direction is sloping
A. it is
possible to set offsets correctly on east side
B. it is
possible to set offsets correctly on east side
C. it is not
possible to se* offsets correctly on west side
D. it is
possible to set offsets correctly on both sides.
Answer =>
D
35.
Perpendicularity of an offset may be judged by eye, if the length of the offset
is
A. 5 m
B. 10 m
C. 15 m
D. 20 m.
Answer =>
C
36. The
construction of optical square is based, on the principle of optical
A.
reflection
B.
refraction
C. double
refraction
D. double
reflection.
Answer =>
D
37. The
conventional sign shown in Fig. 3.1 represents a
A. road
bridge
B. railway
bridge
C. canal
bridge
D. aquaduct,
Answer =>
A
38. is the
conventional sign of
A. temple
B. mosque
C. idgah
D. church
Answer =>
A
39. The
conventional sign shown in Fig. 3.2 represents
A. bridge
carrying railway below road
B. bridge
carrying road below railway
C. bridge
carrying road and railway at the same level
D. a level
crossing.
Answer =>
A
40. The
conventional sign shown in Fig. 3.3 represent3 a
A. bridge
carrying railway below road
B. bridge
carrying road below railway
C. bridge
carrying road and railway at the same level
D. a level
crossi-Ig.
Answer =>
B
41. is a
conventional sign of
A. mosque
B. temple
C. church
D. idgah.
Answer =>
D
42. The surface of zero elevation around the
earth, which is slightly irregular and curved, is known as
A. mean sea
level
B. geoid
surface
C. level
surface
D.
horizontal surface.
Answer =>
B
43. Determining the difference in elevation
between two points on the surface of the earth, is known as
A. levelling
B. simple
leveling
C.
differential levelling
D.
longitudinal levelling.
Answer =>
C
44. When the bubble of the level tube of a level,
remains central
A. line of
sight is horizontal
B. axis of
the telescope is horizontal
C. line of
collimation is horizontal
D.
geometrical axis of the telescope is horizontal.
Answer =>
A
45. 1n an
adjusted level, when the bubble is central, the axis of the bubble tube becomes
parallel to
A. line of
sight
B. line of
collimation
C. axis of
the telescope
D. None of
these.
Answer =>
A
46. The imaginary line passing through the
intersection of cross hairs and the optical centre of the objective, is known
as
A. line of
sight
B. line of
collimation
C. axis of
the telescope
D. none of
these.
Answer =>
B
47. Cross hairs in surveying telescopes, are
fitted
A. in the
objective glass
B. at the
centre of the telescope
C. at the
optical centre of the eye piece
D. in front
of the eye piece,
Answer =>
D
48. The real image of an object formed by the
objective, must lie
A. in the plane
of cross hairs
B. at the
centre of the telescope
C. at the
optical centre of the eye-piece
D. anywhere
inside the telescope.
Answer =>
A
49. An internal focussing type surveying
telescope, may be focussed by the movement of
A. objective
glass of the telescope
B.
convex-lens in the telescope
C. concave
lens in the telescope
D.
plano-convex lens in the telescope.
Answer =>
C
50. The tangent to the liquid surface in a level
tube, is parallel to the axis of the level tube at
A. every
point of the bubble
B. either
end of the bubble
C. the
mid-point of the bubble
D. no where.
Answer =>
C
51. The sensitiveness of a level tube decreases
if
A. radius of
curvature of its inner surface is increased
B. diameter
of the tube is increased
C. length of
the vapour bubble is increased
D. both
viscosity and surface tension are increased.
Answer =>
D
52. In a constant level tube, size of the bubble
remains constant because uppe ? wall is
A. of
relatively larger radius
B. of
relatively smaller radius
C. flat
D. convex downwards.
Answer =>
A
53. The line
normal to the plumb line is known as
A.
horizontal line
B. level
line
C. datum
line
D. vertical
line.
Answer =>
B
54. In
levelling operation,
A. The first
sight on any change point is a back sight
B. The
second sight on any change point is a fore sight
C. The line
commences with a fore sight and closes with a back sight
D. The line
commences with a back sight and closes with a foresight.
Answer =>
D
55. A
relatively fixed point of known elevation above datum, is called
A. bench
mark
B. datum
point
C. reduced
level
D. reference
point.
Answer =>
A
56. The rise
and fall method of reduction of levels, provides a check on
A. back
sights
B. fore
sights
C.
intermediate sights
D. all of
these.
Answer =>
D
57. The line
of collimation method of reduction oflevels, does not provide a check on
A.
intermediate sights
B. fore
sights
C. back
sights
D. reduced
levels.
Answer =>
A
58. During
levelling if back sight is more than foresight
A. The
forward staff is at lower point
B. The back
staff is at lower point
C. The
difference in level, cannot be ascertained.
D. none of
these.
Answer =>
B
59. The back
staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a
point is 1.345 m, the reduced level of the point, is
A. 502.685 m
B. 501.345 m
C. 501.340 m
D. 504.030 m
Answer =>
C
60. In
reciprocal levelling, the error which is not completely eliminated, is due to
A. earth's
curvature
B.
non-adjustment of line of collimation
C.
refraction
D.
non-adjustment of the bubble tube.
Answer =>
C
61. For true
difference in elevations between two points A and B, the level must be set up
A. at any
point between A and B
B. at the
exact mid point of A and B
C. near the
point A
D. near the
point B.
Answer =>
B
62. While viewing through a level telescope and
moving the eye slightly, a relative movement occurs between the image of the
levelling staff and the cross hairs. The instrument is
A. covrectly
focused
B. not
correctly focused
C. said to
have parallax
D. free from
parallax.
Answer =>
C
63. Diaphragm of a surveying telescope is held
inside
A. eye-piece
B. objective
C. telescope
tube at its mid point
D. telescope
at the end nearer the eye-piece
Answer =>
D
64. A dumpy level is set up with its eye-piece
vertically over a peg A. The height from the top of peg A to the centre of the
eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then
setup over B. The height of the eye-piece above peg B is 1.490 m and a reading
on A is 2.195 m. The difference in level between A and B is
A. 2.900 m
B. 3.030 m
C. 0.770 m
D. 0.785 m
Answer =>
C
65. In levelling operation
A. if second
reading is more than first, it represents a rise
B. if first
reading is more than second, it represents a rise
C. if first
reading is less than second, it represents a fall
D. both B
and C.
Answer =>
D
66. For the
construction of highway (or railway)
A.
longitudinal sections are required
B. cross
sections are required
C. both longitudinal
and cross sections are required
D. none of
these.
Answer =>
C
67. An
imaginary line joining the points of equal elevation on the surface of the
earth, represents
A. contour
surface
B. contour
gradient
C. contour
line
D. level
line
Answer =>
C
68. The
boundary of water of a still lake, represents
A. level
surface
B.
horizontal surface
C. contour
line
D. a concave
surface.
Answer =>
C
69. The
constant vertical distance between two adjacent contours, is called
A.
horizontal interval
B.
horizontal equivalent
C. vertical
equivalent
D. contour
interval
Answer =>
D
70. The
contour interval is kept inversely proportional to
A. time and
expense of field work
B. steepness
of the configuration of the area
C. scale of
the map
D. all the
above.
Answer =>
B
71. The
representation of general topography of a very flat terrain is possible only
A. by
drawing contours at large interval
B. by
drawing contours at small interval
C. by giving
spot levels at large interval
D. by giving
spot levels to salient features at close interval.
Answer =>
D
72. Contour
interval, within the limits of a map
A. may be
kept constant
B. may not
be kept constant
C. must be
kept constant
D. may vary
according to the configuration.
Answer =>
C
73. The
direction of steepest slope on a contour, is
A. along the
contour
B. at an
angle of 450 to the contour
C. at right
angles to the contour
D. none of
these.
Answer =>
C
74.
Straight, parallel and widely spaced contours represent
A. a steep
surface
B. a flat
surface
C. an
inclined plane surface
D. curved
surface.
Answer =>
C
75. Two
contour lines, having the same elevation
A. cannot
cross each other
B. can cross
each other
C. cannot
unite together
D. can unite
together.
Answer =>
D
76. Contours
a different elevations may cross each other only in the case of
A. an over
hanging cliff
B. a
vertical cliff
C. a saddle
D. an
inclined plane.
Answer =>
A
77. Closed
contours of decreasing values towards their centre, represent
A. a hill
B. a
depression
C. a saddle
or pass
D. a river
bed-.-
Answer =>
B
78. The
angle of intersection of a contour and a ridge line, is
A. 30?
B. 45?
C. 60?
D. 90?.
Answer =>
D
79. In case
of a double line river, contours are
A. stopped
at the banks of the river
B. stopped
at the edge of the river
C. drawn
across the water
D. drawn by
parabolic curves having their vertex at the centre of the water.
Answer =>
B
80. An
imaginary line lying throughout on the surface of the earth and preserving a
constant inclination to the horizontal, is called
A. contour
line
B. contour
gradient
C. level
line
D. line of
gentle scope.
Answer =>
B
81. From any
point on the surface with a given inclination
A. only one
contour gradient is possible
B. two
contour gradients are possible
C.
indefinite contour gradients are possible
D. all the
above.
Answer =>
C
82. Location
of contour gradient for a highway is best set out from
A. ridge
down the hill
B. saddle
down the hill
C. bottom to
the ridge
D. bottom to
the saddle.
Answer =>
B
83.
Deviation of the actual road gradient from the proposed contour gradient up
hill side, involves
A.
embankment on the centre line
B.
excavation on the centre line earth work on the centre line
C. none of
these.
D.
Answer =>
B
84. Two hill
tops A and B 20 km apart are intervened by a third top C. If the top most
contour of the three hill tops are of the same value, state whether the line of
sight AB
A. passes
clear of hill top C
B. passes
below the hill top C
C. grazes
the hill top C
D. none of
these.
Answer =>
B
85. The best
method of interpolation of contours, is by
A.
estimation
B. graphical
means
C.
computation
D. all of
these.
Answer =>
C
86. For
preparation of a contour plan for a route survey
A. method of
squares is used
B. method of
trace contour is used
C. method of
cross profile is used
D. indirect
method of contouring is used.
Answer =>
C
87. Accuracy
of elevation of various points obtained from contour map is limited to
A. -2 of the
contour interval
B. th of the
contour interval
C. rd of the
contour interval
D. -5 th of
the contour interval.
Answer =>
A
88. While
surveying a plot of land by plane tabling, the field observations
A. and
plotting proceed simultaneously
B. and
plotting do not proceed simultaneously
C. and
recorded in field books to be plotted later
D. all the
above.
Answer =>
A
89. The
instrument which is used in plane tabling for obtaining horizontal and vertical
distances directly without resorting to chaining, is known as
A. Plane
alidade
B.
telescopic alidade
C.
clinometer
D. tacheometer.
Answer =>
B
90. The
operation of revolving a plane table about its vertical axis so that all lines
on the sheet become parallel to corresponding lines on the ground, is known
A. levelling
B. centering
C.
orientation
D. setting.
Answer =>
C
91. In
setting up a plane table at any station
A. levelling
is done first
B. centering
is done first
C. both
levelling and centering are done simultaneously
D.
orientation is done first.
Answer =>
C
92. Plotting of inaccessible points on a plane
table, is done by
A.
intersection
B.
traversing
C. radiation
D. none of
these.
Answer =>
A
93. Locating
the position of a plane table station with reference to three known points, is
known as
A.
intersection method
B. radiation
method
C. resection
method
D. three
point problem.
Answer =>
D
94. The
'fix' of a plane table from three known points, is good, if
A. middle
station is nearest
B. middle
station is farthest
C. either
the right or left station is nearest
D. none of
these.
Answer =>
A
95. The
'fix' of a plane table station with three known points, is bad if the plane
table station lies
A. in the
great triangle
B. outside
the great triangle
C. on the
circumference of the circumscribing circle
D. none of
these.
Answer =>
C
96. One of
the Lehmann's rules of plane tabling, is
A. location
of the instrument station is always distant from each of the three rays from
the known points in proportion to their distances
B. when
looking in the direction of each of the given points, the instrument station
will be on the right side of one and left side of the other ray
C. when the
instrument station is outside the circumscribing circle its location is always
on the opposite side of the ray to the most distant point as the intersection
of the other two rays
D. none of
these.
Answer =>
A
97. For
orientation of a plane table with three points A, B and C, Bessel's drill is
A. Align b
through a and draw a ray towards c, align a through b and draw a ray towards c,
finally align c through the point of intersection of the previously drawn rays
B. Align c
through a and draw a ray towards b, align a through c and draw a ray towards b,
finally align b through the point of intersection of the previously drawn rays
C. Align c
through b and draw a ray towards a, align b through c and draw a ray towards a,
finally align a, through the point of intersection of the previously, drawn
rays
D. In the
first two steps any two of the points may be used and a ray drawn towards the
third point, which is sighted through the point of intersection of previously
drawn rays in the final step.
Answer =>
D
98. To
orient a plane table at a point with two inaccessible points, the method
generally adopted, is
A.
intersection
B. resection
C. radiation
D. two point
problem.
Answer =>
D
99. To orient a plane table at a point P roughly south of
the mid-point of two inaccessible conical hill stations A and B in the plains,
a point C is selected in line with AB and table is oriented at C by bringing ab
in line with AB. A ray is then drawn towards P and at P the table is oriented
by back ray method. The orientation so obtained, is
A. unique and correct
B. incorrect
C. manifold and correct
D. not reliable.
Answer => C
100. Orientation of a plane table by solving two point
problem is only adopted when
A. saving of time is a main factor
B. better accuracy is a main factor
C. given points are inaccessible
D. none of these.
Answer => C
101. Accuracy of 'fix' by two point problem, is
A. bad
B. good
C. not reliable
D. unique.
Answer => C
102. While working on a plane table, the correct rule is:
A. Draw continuous lines from all instrument stations
B. Draw short rays sufficient to contain the points sought
C. Intersection should be obtained by actually drawing
second rays
D. Take maximum number of sights as possible from each
station to distant objects.
Answer => B
103. If the plane table is not horizontal in a direction at
right angles to the alidade, the line of sight is parallel to the fiducial edge
only for
A. horizontal sights
B. inclined sights upward
C. inclined sight downward
D. none of these.
Answer => A
104. The smaller horizontal angle between the true meridian
and a survey line, is known
A. declination
B. bearing
C. azimuth
D. dip.
Answer => C
105. The vertical angle between longitudinal axis of a
freely suspended magnetic needle and a horizontal line at its pivot, is known
A. declination
B. azimuth
C. dip
D. bearing.
Answer => C
106. Magnetic bearing of a survey line at any place
A. remains constant
B. changes systematically
C. varies differently in different months of the year
D. is always greater than true bearing.
Answer => C
107. Prismatic compass is considered more accurate than a
surveyor's compass, because
A. it is provided with a better magnetic needle
B. it is provided with a sliding glass in the object vane
C. its graduations are in whole circle bearings
D. it is provided with a prism to facilitate reading of its
graduated circle
Answer => D
108. If whole circle bearing of a line is 1200, its reduced
bearing is
A. S 20? E
B. S 60? E
C. N 120? E
D.N 60? E.
Answer => B
109. The reduced bearing of a line is N 87? W. Its whole
circle bearing is
A. 87?
B. 273.?
C. 93?
D. 3?.
Answer => B
110. The magnetic meridian at any point, is the direction
indicated by a freely suspended
A. magnetic needle
B. and properly balanced magnetic needle
C. properly balanced and uninfluenced by local attractive
force
D. magnetic needle over an iron pivot.
Answer => C
111. The horizontal angle between true meridian and magnetic
meridian, is known
A. bearing
B. magnetic declination
C. dip
D. convergence.
Answer => B
112. Imaginary line passing through points having equal
magnetic declination is termed as
A. isogon
B. agonic line
C. isoclinic line
D. none of these.
Answer => A
113. Magnetic declination at any place
A. remains constant
B. does'n remain constant
C. fluctuates
D. changes abruptly.
Answer => B
114. The zero of the graduated circle of a prismatic compass
is located at
A. north end
B. east end
C. south end
D. west end.
Answer => C
115. The true meridian of a place is the line in which
earth's surface is intersected by a plane through
A. east and west points
B. zenith and nadir points
C. north and south geographical poles
D. north and south magnetic poles.
Answer => D
116. True meridian of different places
A. converge from the south pole to the north pole
B. converge from the north pole to the south pole
C. converge from the equator to the poles
D. run parallel to each other.
Answer => C
117. True meridians are generally preferred to magnetic
meridians because
A. these converge to a point
B. these change due to change in time
C. these remain constant.
D. None of these.
Answer => C
118. During secular variation of magnetic meridian at
different places
A. range of oscillations is constant
B. period of oscillation is constant
C. range and period of oscillation both vary
D. period of oscillation only varies.
Answer => C
119. Diurnal variation of magnetic declination is
A. greater at equator than nearer the poles
B. less at equator than nearer the poles
C. less in summer than in winter
D. same at all latitudes and during different months.
Answer => B
120. Grid
lines are parallel to
A. magnetic
meridian of the central point of the grid
B. line
representing the central true meridian of the grid
C.
geographical equator
D. none of
these.
Answer =>
B
121. Whole
circle bearing of a line is preferred to a quadrantal bearing merely because
A. bearing
is not completely specified by an angle bearing is completely specified by an
angle
B. Sign of
the correction of magnetic declination is different in different quadrants
C. its
trigonometrical values may be extracted from ordinary tables easily.
D.
Answer =>
B
122. In
quadrantal bearing system, back bearing of a line may be obtained from its
forward bearing, by
A. adding
180?, if the given bearing is less than 180'
B.
subtracting 180?, if the given bearing, is more than 180?
C. changing
the cardinal points, i.e. substituting N for S and E for W and vice-versa
D. none of
these.
Answer =>
D
123. Reduced
bearing of a line is an angle between
A. north
line and given line measured clockwise
B. north
line and given line measured anti-clockwise
C. east or
west and the given line
D. given
line and the part of the meridian whether N end or S end, lying adjacent to it.
Answer =>
D
124. If the
whole circle bearing of a line is 270?, its reduced bearing is
A. N 90? W
B. S 90? W
C. W 90?
D. 900 W.
Answer =>
C
125. If the
whole circle bearing of a line is 180?, its reduced bearing is
A. S 0? E
B. S 0? W
C. S
D. N.
Answer =>
C
126. The
ratio of the linear displacement at the end of a line, subtended by an arc of
one second to the length of the line, is
A. 1 : 206
300
B. 1 : 3440
C. 1 : 57
D. 1 : 100.
Answer =>
A
127. The
line of sight is kept as high above ground surface as possible to minimise the
error in the observed angles due to
A.
shimmering
B.
horizontal refraction
C. vertical
refraction
D. both
shimmering and horizontal refraction.
Answer =>
D
128. If a
linear traverse follows a sharp curve round a large lake where it is difficult
to have long legs, the accuracy of the traverse may be improved by
A. taking
short legs
B. making
repeated observations of angular and linear measurements
C. making a
subsidiary traverse to determine the length of a long leg
D. all the
above.
Answer =>
C
129. The
distance between terminal points computed from a subsidiary traverse run
between them, is generally known, as
A. traverse
leg
B. a base
C. traverse
base
D. all the
above.
Answer =>
C
130. To
avoid large centering error with very short legs, observations are generally
made
A. to chain
pins
B. by using
optical system for centering the theodolite
C. to a
target fixed on theodolite tripod on which theodolite may be fitted easily
D. all the
above.
Answer =>
C
131. A
traverse deflection angle is
A. less than
900
B. more than
90? but less than 180?
C. the
difference between the included angle and 180?
D. the
difference between 360? and the included angle.
Answer =>
C
132. In a
precision traverse, included angles are measured by setting the vernier
A. to read
zero exactly on back station
B. to read
5? exactly on back station
C. some
where near zero and reading both verniers on back station
D. all the
above.
Answer =>
C
133. The
included angles of a theodolite traverse, are generally measured
A. clockwise
from the forward station
B.
anti-clockwise from the back station
C.
anti-clockwise from the forward station
D. clockwise
from the back station.
Answer =>
D
134. An
angle of deflection right, may be directly obtained by setting the instrument
to read
A. zero on
back station
B. 180? on
back station
C. 90?
D. 270? on
back station.
Answer =>
A
135. You
have to observe an included angle with better accuracy than what is achievable
by a vernier, you will prefer the method of
A.
repetition
B.
reiteration
C. double
observations
D.
exactness.
Answer =>
A
136.
Centering error of a theodolite produces an error
A. in all
angles equally
B. which
does not vary with the direction or pointing
C. which
varies with the direction of pointing and inversely with the length of sight
D. none of
these.
Answer =>
C
137. In
horizontal angles, the error due to imperfect levelling of the plate bubble is
A. large
when sights are nearly level
B. large for
long sights
C. less for
steeply inclined sights
D. large for
steeply inclined sights.
Answer =>
D
138. Removal
of parallax, may be achieved by focusing
A. the
objective
B. the
eye-piece
C. the
objective and the eye-piece
D. none of
these.
Answer =>
C
139.
Accurate measurement of deflection angles with a transit not properly adjusted
may be made by
A. setting
the vernier A at zero at back station and then plunging the telescope
B. setting
the vernier A at zero at back station and turning the instrument to the forward
station
C.
takingtaking two back sights one with the telescope normal and the other with
telescope inverted
D. none of
these.
Answer =>
C
140. A
transit is oriented by setting its vernier A to read the back azimuth of the
preceding line. A back sight on the preceding transit station taken and transit
is rotated about its vertical axis. The vernier A reads
A. azimuth
of the forward line
B. bearing
of the forward line
C. back
bearing of the forward line
D. equal to
360??azimuth of the forward line.
Answer =>
A
141. Under
ordinary conditions, the precision of a theodolite traverse is affected by
A.
systematic angular errors
B.
accidental linear errors
C.
systematic linear errors
D.
accidental angular errors.
Answer =>
C
142. In
precision theodolite traverse if included angles are read twice and the mean
reading accepted using both verniers having a least count of 30". Assuming
the instrument to be in perfect adjustment, linear measurements correct to 6 mm
per 30 metre tape duly corrected for temperature, slope and sag, the angular
error of closure not to exceed
A. 50"
B. 30' 4/1.
C. 60'
-q-r-z where n is the number of traverse legs.
D.
Answer =>
A
143. For
locating a distant object visible from two transit stations, the method usually
preferred to, is
A. Angles
and distances from transit stations
B. Angles
from two transit stations
C. distance
from two transit stations
D. Angle
from one transit station and distance from the other.
Answer =>
B
144. Angles
to a given pivot station observed from a number of traverse stations when
plotted, the lines to the pivot station intersect at a common point
A. angular
measurements are correct and not the linear measurements
B. linear
measurements are correct and not the angular measurements
C. angular
and linear measurements are correct and not the plotting of traverse
D. angular
and linear measurements and also plotting of the traverse are correct.
Answer =>
D
145. The
most reliable method of plotting a theodolite traverse, is
A. by
consecutive co-ordinates of each station
B. by
independent co-ordinates of each station
C. by
plotting included angles and scaling off each traverse leg
D. by the
tangent method of plotting.
Answer =>
B
146. The
orthographical projection of a traverse leg upon the reference meridian, is
known as
A. departure
of leg
B. latitude
to the leg
C.
co-ordinate of the leg
D. bearing of
the leg.
Answer =>
B
147. The
co-ordinate of a point measured perpendicular to the parallel, is called
A. total
latitude
B. meridian
distance
C. total
departure
D.
consecutive co-ordinate.
Answer =>
A
148. Total
latitude of a point is positive if it lies
A. north of
the reference parallel
B. south of
the reference parallel
C. east of
the reference parallel
D. west of
the reference parallel.
Answer =>
A
149. The
latitude of a traverse leg is obtained by multiplying its length by
A. tangent
of its reduced bearing
B. sign of
its reduced bearing
C. cosine of
its reduced bearing
D. cosecant
of its reduced bearing.
Answer =>
C
150. In a
closed traverse, sum of south latitudes exceeds the sum of north latitudes and
the sum of east departures exceeds the sum of west departures, then, the
closing line will lie in
A.north-west
quadrant
B. north
east quadrant
C.
south-east quadrant
D.
south-west quadrant.
Answer =>
C
151. The
operation of making the algebraic sum of latitudes and departures of a closed
traverse, each equal to zero, is known
A. balancing
the sights
B. balancing
the departures
C. balancing
the latitudes
D. balancing
the traverse.
Answer =>
D
152. If the
angular measurements of a traverse are more precise than its linear
measurements, balancing of the traverse, is done by
A.
Bowditch's rule
B. Transit
rule
C. Empirical
rule
D. all of
the above.
Answer =>
B
153. The
length of a traverse leg may be obtained by multiplying the latitude and
A. secant of
its reduced bearing
B. sine of
its reduced bearing
C. cosine of
its reduced bearing
D. tangent
of its reduced bearing.
Answer =>
A
154. The
branch of surveying in which both horizontal and vertical positions of a point,
are determined by making instrumental observations, is known
A.
tacheometry
B.
tachemetry
C. telemetry
D. all the
above.
Answer =>
D
155. The
method generally preferred to for contouring an undulating area, is
A. chain
surveying
B. plane
table surveying
C.
tacheometrical surveying
D. compass
surveying.
Answer =>
C
156. Stadia
techeometry was discovered by James Watt in the year.
A.1670
B.1770
C.1870
D.1900
Answer =>
B
157. The
diaphragm of a stadia theodolite is fitted with two additional
A. hoOzo al
hairs
B. vertic
hairs
C. horizo
tal and two vertical hairs
D. none bf
these.
Answer =>
A
158. The
staff intercept will be
A. greater
farther off the staff is held
B. smaller,
farther off the staff is held
C. smaller,
nearer the staff is held
D. same,
wherever the staff is held.
Answer =>
B
159. One of
the tacheometric constants is additive, the other constant, is
A.
subtractive constant
B.
multiplying constant
C. dividing
constant
D.
indicative conkant.
Answer =>
B
160. If i is
the stadia distance, f is the focal length and d is the distance between the
objective and vertical axis of the techeometer, the multiplying constant, is
A. i
B.
C.
D.
Answer =>
A
161.
Tacheometric formula for horizontal distances using horizontal sights can also
suitable be employed for inclined sights through 0 by multiplying
A. the
constants by sin2 0
B. the constants
by cos2 0
C. the
constants by cos 0
D. the
multiplying constant by cos20 and additive constant by cos 0.
Answer =>
D
162. The
formula for the horizontal distances for inclined sights, on staff held
normalisf s cos 0 + (f + d) cos 0 ? h sin 0
A. minus
sign is used for angle of depression
B. plus sign
is used for angle of depression
C. minus
sign is used for angle of elevation
D. non of
these.
Answer =>
A
163. If a
tacheometer is fitted with an anallatic lens
A. additive
constant is 100, multiplying constant is zero
B.
multiplying constant is 100, additive constant is zero
C. both
multiplying and additive constants are 100
D. both
multiplying and additive constants are 50.
Answer =>
B
164. In
tacheometrical observations, vertical staff holding is generally preferred to
normal staffing, due to
A. ease of
reduction of observations
B. facility
of holding
C. minimum
effect of careless holding on the result
D. none of
these.
Answer =>
C
165. In
tangential tacheometry, an ordinary level staff is used
A. leaning
towards the instrument for inclined sights upward
B. leaning
away from the instrument for inclined sights downwards
C. vertical
in all cases
D. none of
these.
Answer =>
C
166.
Horizontal distances obtained tacheometerically are corrected for
A. slope
correction
B.
temperature correction
C.
refraction and curvature correction
D. all the
above.
Answer =>
C
167. Tilt of
the staff in stadia tacheometry increases the intercept if it is
A. away from
the telescope pointing down hill
B. towards
the telescope pointing up-hill
C. away from
the telescope pointing up-hill
D. none of
these.
Answer =>
C
168. If 0 is
the vertical angle of an inclined sight, 6 is the angle of tilt of the staff,
the error
A. E = 1 -
cos ? 6)
B. - 1 -sin
(0 ? .cos 0 sin 0
C. E = 1 -
tan (0 ? 6)
D. none of
these.
Answer =>
A
169. The
intercept of a staff
A. is
maximum if the staff is held truly normal to the line of sight.
B. is
minimum if the staff is held truly normal to the line of sight.
C. decreases
if the staff is tilted away from normal
D. increases
if the staff is tilted towards normal.
Answer =>
B
170. If vertical angles of inclined sights do not
exceed 100 and non-verticality of the staff remains within 1?, stadia system of
tacheometric observations are made on
A. staff
normal
B. staff
vertical
C. staff
normal as well as vertical
D. none of
these.
Answer =>
A
171. 01 and 02 are the angles of elevation from A
to the top and bottom of a vertically held rod of length S at B. The horizontal
distance AB is
A. tan 01 -
tan 02
B. tan 01 +
tan 02
C. tan -02
01
D.tan 01 x
tan 02
Answer =>
A
172. Subtense tacheometry is generally preferred
to if ground is
A. flat
B.
undulating
C.
mountaineous
D. deserts.
Answer =>
B
173. The theodolites used for making tacheometric
observations by optical wedge system, are
A. provided
with stadia hairs in front of eye piece
B. not
provided with stadia hairs at all
C. fitted
with a glass wedge inside the telescope
D. fitted
with a glass wedge in front of telescope.
Answer =>
D
174. The curve composed of two arcs of different
radii having their centres on the opposite side of the curve, is known
A. a simple
curve
B. a
compound curve
C. a reverse
curve
D. a
vertical curve.
Answer =>
C
175. Designation of a curve is made by :
A. angle
s'ibtended by a chord of any length B angle subtended by an arc of specified
length
B. radius of
the curve
C. curvature
of the curve.
D.
Answer =>
C
176. The radius of a simple circular curve is 300
m and length of its specified chord is 30 m. The degree of the curve is
A. 5.73?
B.5.37
C.3.57
D. 3.75?.
Answer =>
A
177. If D is the degree of the curve of radius R,
the exact length of its specified chord, is
A. radius of
the curve x sine of half the degree
B. diameter
of the curve x sine of half the degree
C. diameter
of the curve x cosine of half the degree
D. diameter
of the curve x tangent of half the degree.
Answer =>
B
178. The angle of intersection of a curve is the
angle between
A. back
tangent and forward tangent
B.
prolongation of back tangent and forward tangent
C. forward
tangent and long chord
D. back
tangent and long chord.
Answer =>
A
179. The
chord of a curve less than peg interval, is known as
A. small
chord
B. sub-chord
C. normal
chord
D. short
chord.
Answer =>
B
180. Rankine's deflection angle in minutes is
obtained by multiplying the length of the chord by
A. degree of
the curve
B. square of
the degree of the curve
C. inverse
of the degree of the curve
D. none of
these.
Answer =>
A
181. Setting out a curve by two theodolite method,
involves
A. linear
measurements only
B. angular
measurements only
C. both
linear and angular measurements
D. none of
these.
Answer =>
B
182. Transition curves are introduced at either
end of a circular curve, to obtain
A. gradually
decrease of curvature from zero at the tangent point to the specified quantity
at the junction of the transition curve with main curve
B. gradual
increase of super-elevation from zero at the tangent point to the specified
amount at the junction of the transition curve with main curve
C. gradual
change of gradient from zero at the tangent point to the specified amount at
the junction of the transition curve with main curve
D. none of
these.
Answer =>
B
183. If the rate of gain of radial acceleration is
0.3 m per sec3 and full centrifugal ratio is developed. On the curve the ratio
of the length of the transition curve of same radius on road and railway, is
A.2.828
B.3.828
C.1.828
D. 0.828.
Answer =>
A
184. With
usual notations, the expression -'17 represents gR
A.
centrifugal force
B. centrifugal
ratio
C. super
elevation
D. radial
acceleration.
Answer =>
B
185. An ideal transition curve is
A. cubic
parabola
B. cubic
spiral
C. clothoid
spiral
D. true
spiral.
Answer =>
C
186. Perpendicular offset from a tangent to the
junction of a transition curve and circular curve is equal to
A. shift
B. twice the
shift
C. thrice
the shift
D. four
times the shift.
Answer =>
D
187. The properties of autogenous curve for
automobiles are given by
A. true
spiral
B. cubic
parabola
C.
Bernoulli's Lemniscate
D. clothoid
spiral.
Answer =>
C
188. If the radius of a simple curve is R, the
length of the chord for calculating offsets by the method of chords produced,
should not exceed.
A. R/10
B. RI15
C. R/20
D. R/25.
Answer =>
C
189. If the radius of a simple curve is 600 m, the
maximum length of the chord for calculating offsets, is taken
A. 10 m
B. 15 m
C. 20 m
D. 30 m.
Answer =>
D
190. If S is the length of a subchord and R is the
radius of simple curve, the angle of deflection between its tangent and sub-chord,
in minutes, is equal to
A. 573 SIR
B. 573 RIS
C. 171.9 SIR
D. 1718.9
SIR.
Answer =>
D
191. For a curve of radius 100 m and normal chord
10 m, the Rankine's deflection angle, is
A. 0?25'.95
B. 0?35'.95
C. 1?25'.95
D. 1?45'.95.
Answer =>
D
192. For setting out a simple curve, using two
theodolites.
A. offsets
from tangents are required
B. offsets
from chord produced are required
C. offsets
from long chord are required
D. none of
these.
Answer =>
D
193. If R is the radius of the main curve, 0 the
angle of deflection, S the shift and L the length of the transition curve,
then, total tangent length of the curve, is
A. (R - S)
tan 012 - L/2
B. (R + S)
tan 012 - L/2
C. (R + S)
tan 0/2 + L/2
D. (R -5)
tan 0/2 + L12
Answer =>
C
194. If the length of a transition curve to be
introduced between a straight and a circular curve of radius 500 m is 90 m, the
maximum perpendicular offset for the transition curve, is
A. 0.70 m
B. 1.70 m
C. 2.70 m
D. 3.70 m
Answer =>
C
195. In question No. 3.208,
the maximum deflection angle to locate its junction point, is
A. 1?43'08"
B. 1?43'18"
C. 1?43'28"
D. 1?43'38".
Answer =>
C
196. An ideal vertical curve to join two
gradients, is
A. circular
B. parabolic
C.
elliptical
D.
hyperbolic
Answer =>
B
197. If +
0.8% grade meets - 0.7% grade and the rate of change of grade for 30 m distance
is 0.05, the length of the vertical curve will be
A. 600 m
B. 700 m
C. 800 m
D. 900 m
Answer =>
B
198. If a is the angle between the polar ray and
the tangent at the point of commencement of a lemniscate curve, the equation of
the curve, is
A. 1 =
Inisin a
B. 1 =
ln(sin 2a
C. 1 =
Ivisin 3a
D. 1 = kAan
2a
Answer =>
D
199. In a lemniscate curve the ratio of the angle
between the tangent at the end of the polar ray and the straight, and the angle
between the polar ray and the straight, is
A.2
B.3
C.4
D.5
Answer =>
A
200. A lemniscate curve will not be transitional
throughout, if its deflection angle, is
A. 45?
B. 60?
C. 90?
D. 180?.
Answer =>
D
201.
Simpson's rule for calculating areas states that the area enclosed by a
curvilinear figure divided into an even number of strips of equal width, is
equal to
A. half the
width of a strip, multiplied by the sum of two extreme offsets, twice the sum
of remaining odd offsets, and thrice the sum of the even offsets
B. one third
the width of a strip, multiplied by the sum of two extreme offsets, twice the
sum of remaining odd offsets and four times the sum of the even offsets
C. one third
the width of a strip, multiplied by the sum of two extreme offsets, four times
the sum of the remaining odd off-sets, and twice the sum of the even offsets
D. one sixth
the width of a strip, multiplied by the sum of the two extreme offsets, twice
the sum of remaining odd offsets and four times the sum of the even offsets
Answer =>
A
202. Volume of the earth work may be calculated by
A. mean
areas
B. end areas
C.
Prismoidal formula
D. all the
above.
Answer =>
D
203. The area of any irregular figure of the
plotted map is measured with
A.
pentagraph
B. sextant
C.
clinometer
D.
planimeter
Answer =>
D
204. If the area calculated form the plan plotted
with measurements by an erroneous chain, accurate area of the plan is length of
chain used
A. measured
area x nominal chain length nominal chain length
B. measured
area x length of chain used
C.B ba sin C
D. .N1S(S -
a)(S - b)(S -C measured area x
Answer =>
D
205. If hi
and h2 are the differences in level between ground and t formation levels, m is
the slope of the sloping sides. 1) is the di nce between the cross sections
then, prismoidal correction for evel section is
A. D/2m(h1 -
h2
B. D/3m(h1 -
hz)
C. D/6m (h1
- h2)2
D. D/6m(h1 -
h2)3
Answer =>
C
206. Pick up
the correct staterner4 from the following :
A. If the
slope of the curve of a ass diagram in the direction of increasing abscissa
isc1pwnward, it indicates an embankment
B. The
vertical distance between a maximum dinate and the next forward maximum
ordinate represents the whole volume of the embankment
C. The
vertical distance between a minimum ordinate an the next forward maximum
ordinate represents the whole volume of a cutting
D. all the
above.
Answer =>
D
207. For
indirect ranging, number of ranging rods required, is
A.1
B.2
C.3
D.4
Answer =>
D
208. The
main plate of a transit is divided into 1080 equal divisions. 60 divisions of
the vernier coincide exactly with 59 divisions of the main plate. The transit
can read angles accurate upto
A. 5"
B. 10"
C. 15"
D.C 20"
Answer =>
D
209. For a
closed traverse the omitted measurements may be calculated
A. length of
one side only
B. bearing
of one side only
C. both
length and bearing of one side
D. all the
above.
Answer =>
D
210. A clinometer is used for
A. measuring angle of slope
B. correcting line of collimation setting out right angles
C. defining natural features.
D.
Answer => A
211. Permanent adjustments of a level are
A. 2 in number
B. 3 in number
C. 4 in number
D. 6 in number.
Answer => A
212. Planimeter is used for measuring
A. volume
B. area
C. contour gradient
D. slope angle
Answer => B
213. Number of subdivisions per metre length of a
levelling staff is
A.100
B.200
C.500
D.1000
Answer => B
214. Number of links per metre length of a chain are
A.2
B.5
C.8
D.10
Answer => B
215. Cr s-staff is used for
A. settin ut right angles
B. measurin ontour gradient
C. taking levels
D. measuring distanes
Answer => A
216. Pantagraph is used for
A. measuring distances
B. masring areas
C. enlarging or reducing plans
D. settin ut right angles.
Answer => C
217. In chain surveying, perpendiculars to the ain line,
are set out by
A. a theodolite
B. a prismatic compass
C. a level
D. an optical square.
Answer =>D
218. Profile levelling is usually done for determining
A. contours of an area
B. capacity of a reservoir
C. elevations along a straight line
D. boundaries of property.
Answer => C
219. The 'point of curve' of a simple circular curve, is
A. point of tangency
B. point of commencement
C. point of intersection
D. mid-pdint of the curve.
Answer => B
220. Pick up the correct statement from the following :
A. Box sextant is used for the measurement of horizohtal
angles
B. Cross staff is used for setting out right angle:.
C. Gradiometer is used for setting out any required'
gradient
D. All the above.
Answer => D
221. Ramsden eye-piece consists of
A. two convex lenses short distance 'apart
B. two concave lenses short distance apart
C. one convex lens and one concave lens short distance
apart
D. two plano-convex lenses short distance apart, with the
convex surfaces facing each other.
Answer => D
222. The ratio of the angles subtended at the eye, by the
virtual image and the object, is known as telescope's
A. resolving power
B. brightness
C. field of view
D. magnification.
Answer => D
223. In a perfect prismatic compass
A. magnetic axis and geometric axis of the needle
coincide
B. ends of the needle and pivot are in same vertical and
horizontal planes
C. pivot is vertically over the centre of the graduated
circle
D. all the above.
Answer => D
224. a, 13 are the horizontal angles measured at the ends of a base
line AB to a hill top whose angle of elevation from station A is 0?. The height
of the hill top above the trunnion axis of the theodolite station, is
A. . AB sin 13 tan 0 AB sin 0 tan a
B.sin 1180? - (a +13)] sin [1800 - (a + 0)]
C.AB sin 9 tan r3 AB sin cc tan 0
D.sin [180? - (a + 13)]sin [1800 - (a + 13)]
Answer => D
225. The bearings
of two traverse legs AB and BC are N52? 45' E and N34? 30' E respectively. The
deflection angle is
A. 18? 15'E
B. 18? 15'N
C. 18? 15' W
D. 18? 15' L.
Answer => D
226. The bearing
of lines OA and OB are 16? 10' and 332? 18', the value of the included angle
BOA is
A. 316? 10'
B. 158? 28'
C. 348? 08'
D. 43? 52'.
Answer => D
227. The bearing
of line AB is 152? 30' and angle ABC measured clockwise is 124? 28'. The
bearing of BC is
A. 27? 52'
B. 96? 58'
C. 148? 08'
D. 186? 58'.
Answer => B
228. The whole
circle bearing of a line is 290?. Its reduced bearing is
A. N 20? E
B. N 20? W
C. N 70? W
D. S 70? E.
Answer => C
229. A bearing of
a line is also known as
A. magnetic bearing
B. true bearing
C. azimuth
D. reduced bearing.
Answer => B
230. ABCD is a
rectangular plot of land. If the bearing of the side AB is 75?, the bearing of
DC is
A. 75?
B. 255?
C. 105?
D. 285?.
Answer => A
231. ABCD is a
regular parallelogram plot of land whose angle BAD is 60?. If the bearing of
the line AB is 30?, the bearing of CD, is
A. 90?
B. 120?
C. 210?
D. 270?.
Answer => C
232. Back bearing
of a line is equal to
A. Fore bearing ? 90?
B. Fore bearing ? 180?
C. Fore bearing + 360?
D. Fore bearing + 270?.
Answer => B
233. The magnetic
bearing of a line is 32? and the magnetic declination is 10? 15' W. The true
bearing is
A. 21?45'
B. 42?15'
C. 42?15' W
D. 21?45' W.
Answer => A
234. Ranging in
chain survey means
A. looking at an isolated point not on the line
B. establishing an intermediate point on the line
C. determining the distance between end points
D. determining the offset distance
Answer => B
235. Ranging is an
operation of
A. reconnaissance
B. judging the distance
C. determination of slope
D. establishing intermediate points between terminals.
Answer => D
236. Measuring
with a 30 m chain, 0.01 m too short, introduces
A. positive compensating error
B. negative compensating error
C. positive cumulative error
D. negative cumulative error,
Answer => C
237. Metric chains are generally available in
A. 10 m and 20 m length
B. 15 m and 20 m length
C. 20 m and 30 m length
D. 25 m and 100 m length.
Answer => C
238. The reduced level of a floor is 99.995 m, the staff
reading on the floor is 1.505 m. If the inverted staff reading against the roof
is 1.795 m, the floor level below the slab, is
A. 3.290 m
B. 3.300 m
C. 3.275 m
D. 2.790 m.
Answer => B
239. The method of finding out the difference in
elevation between two points for eliminating the effect of curvature and
refraction, is
A. reciprocal levelling
B. precise leveling
C. differential levelling
D. flying levelling.
Answer => A
240. A uniform slope was measured by the method of stepping.
If the difference in level between two points is 1.8 m and the slope distance
between them is 15 m, the error is approximately equal to
A. cumulative, + 0.11 m
B. compensating, ? 0.11 m
C. cumulative, - 0.11 m
D. none of these.
Answer => A
241. A standard
steel tape of length 30 m and cross-section 15 x 1.0 mm was standardised at
25?C and at 30 kg pull. While measuring a base line at the same temperature,
the pull applied was 40 kg. If the modulus of elasticity of steel tape is 2.2 x
106 kg/cm2, the correction to be applied is
A. - 0.000909 m
B. + 0.0909 m
C. 0.000909 m
D. none of these.
Answer => A
242. The bearing of AB is 190' and that of CB is 260?
30'.The included angle ABC, is
A. 80' 30'
B. 99? 30'
C. 70? 30'
D. none of these.
Answer => C
243. A dumpy level was set up at mid-point between pegs A
and B, 80 m apart and the staff readings were 1.32 and 1.56. When the level was
set up at a point 10 m from A on BA produced, the staff readings obtained at A
and B were 1.11 and 1.39. The correct staff reading from this set up at B
should be
A.1.435
B.1.345
C.1.425
D. none of these.
Answer => B
244. The desired sensitivity of a bubble tube with 2 mm
divisions is 30". The radius of the bubble tube should be
A. 13.75 m
B. 3.44 m
C. 1375 m
D. none of these.
Answer => A
245. Offsets are measured with an accuracy of 1 in 40. If
the point on the paper from both sources of error (due to angular and
measurement errors) is not to exceed 0.05 cm on a scale of 1 cm =20 m, the
maximum length of offset should be limited to
A.14.14
B. 28.28 m
C. 200 m
D. none of these.
Answer => B
246. A dumpy level was set up at the mid-point between
two pegs A and B, 50 m apart and the staff readings at A and B were 1.22 and
1.06. With the level set up a A, the readings at A and B were 1.55 and 1.37.
The collimation error per 100 m length of sight is
A. 0.02 m inclined upwards
B. 0.04 m inclined downwards
C. 0.04 m inclined upward
D. none of these.
Answer => B
247. The bearings of the lines AB and BC are 146? 30' and
68? 30'. The included angle ABC is
A. 102?
B. 78?
C. 45?
D. none of these.
Answer => A
248. While setting a plane table at a station it was
found that the error in centering was 30 cm away from the ray of length 40 m
drawn from the station. If the scale of the plan is 1. cm = 2 cm, the
displacement of the end of the ray in plan from the true position will be
A. 0.02 cm
B. 0.15 cm
C. 02 cm
D. 0.1 cm.
Answer => B
249. The staff reading at a distance of 80 m from a level
with the bubble at its centre is 1.31 m. When the bubble is moved by 5
divisions out of the centre, the reading is 1.39 m. The angular value of the
one division of the bubble, is
A. 28.8 secs
B. 41.25 secs
C. 14.52 secs
D.25.05
Answer => B
250. Staff readings on pegs x and y from X station are
1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m
and 1.560 m. If,reduced level of X is 105.5 m, the reduced level of Y is
A. 104.0 m
B. 104.5 m
C. 105.0 m
D. 105.5 m.
Answer => B
251. Probable accidental error in precise levelling as
recommended by International Geodetic Association, should not exceed where k is
in kilometers.
A. ? 0.1 qiz mm
B.C ? 1 -Vre mm
C.B ? 0.5 AT? Mm
D. ? 2 v-k- mm
Answer => C
252. Probable systematic error in precise levelling as
recommended by International Geodetic Association should not exceed
A. ? 0.1 -4-k- mm
B. ? 0.2 Alrz mm
C. ? 0.1 Airz
D.0.2
Answer => D
253. While measuring with a metallic tape of 30 m length
pull should be applied
A. 1 kg
B. 2 kg
C. 3 kg
D. 4 kg.
Answer => C
254. A sewer is laid from a manhole A to a manhole B, 250
m away along a gradient of 1 in 125. If the reduced level of the invert at A is
205.75 m and the height of the boning rod is 3 m, the reduced level of the
sight rail at B, is
A. 208.75 m
B. 202.75 m
C. 206.75 m
D. 211.75 m.
Answer => C
255. The ratio of the distances at which a stated length
can be distinguished by the telescope and the human eye, respectively, is
called
A. brightness of telescope
B. magnification of telescope
C. resolving power of telescope
D. none of these.
Answer => C
256. Pick up the correct statement from the following
A. A level surface is perpendicular at all points to the
direction of gravity
B. A level line lies in level surface
C. A horizontal surface is normal to the direction of
gravity at only one point
D. All the above.
Answer => D
257. The first reading from a level station is
A. foresight
B. intermediate sight
C. back-sight
D. any sight.
Answer => C
258. In case of reduction oflevels by the height of
instrument method,
A. E B.S. - E F.S. = difference in R.L.S of the first
station and last station
B. E (R.L. + I + F.S.) - first R.L= E (H.I. + No. of
R.L.s.)
C. both A and B above
D. neither A nor B.
Answer => D
259. Bergchrund is a topograhical feature in
A. plains
B. water bodies
C. hills
D. glaciated region.
Answer => B
260. The distance between the point of intersection of an
up grade + gi% and downgrade g2% and the highest point of the vertical curve of
length L, is
A. L(gi -g)400
B. L(gi + g2)400
C. L(g - g2)
D.C L(gi. g2) 800
Answer => D
261. A level when set up 25 m from peg A and 50 m from
peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping
bubble at its centre while reading. If the reduced levels of A and B are
283.665 m and 284.295 m respectively, the collimation error per 100 m is
A. 0.015 m
B. 0.030 m
C. 0.045 m
D. 0.060 m.
Answer => D
262. In a telescope the object glass of focal length 14
cm, is located at 20 cm from the diaphragm. The focussing lens is midway
between them when a staff 16.50 m away is focussed. The focal length of the
focussing lens, is
A. 5.24 cm
B. 6.24 cm
C. 7.24 cm
D. 8.24 cm.
Answer => C
263. The bearing of C from A is N 300 E and from B, 50
metres east of A, is N 60? W. The departure of C from A is
A. 50 m
B. 50 Ad m
C. 25 Ar3- m
D. 25 m.
Answer => D
264. The latitude of point C as stated in Q. No. 3.285,
is
A. 50 m
B. 50 V-3?m
C. 25 ii
D. 25 m.
Answer => C
265. If the long chord and tangent length of a circular
curve of radius R are equal the angle of deflection, is
A. 30?
B. 60?
C. 90?
D. 120?
Answer => C
266. Pick up the
correct statement from the following :
A. The directions of plumb lines suspended at different
points in a survey are not strictly parallel
B. In surveys of small extent, the effect of curvature
may be ignored and the level surface of the earth is assumed as horizontal
C. In surveys of large extent, the effect of curvature of
the earth must be considered
D. All the above.
Answer => D
267. The sum of
the interior angles of a geometrical figure laid on the surface of the earth
differs from that of the corresponding plane figure only to the extent of one
second for every
A. 100 sq. km of area
B. 150 sq. km of area
C. 200 sq. km of area
D. none of these.
Answer => C
268. Geodetic
surveying is undertaken
A. for production of accurate maps of wide areas
B. for developing the science of geodesy
C. making use of most accurate instruments and methods of
observation
D. all the above.
Answer => D
269. The distances
AC and BC are measured from two fixed points A and B whose distance AB is
known. The point C is plotted by intersection. This method is generally adopted
in
A. chain surveying
B. traverse method of surveys
C. triangulation
D. none of these.
Answer => A
270. Mistakes
which may produce a very serious effect upon the final results arise due to
A. in attention
B. in experience
C. carelessness
D. all of these.
Answer => D
271. The
systematic errors which persist and have regular effects in the performance of
a survey operation, are due to
A. carelessness
B. faulty instrument
C. inattention
D. none of these.
Answer => B
272. Pick up the
correct statement from the following :
A. mistakes arise from inattention, inexperience or
carelessness
B. systematic errors persist and have regular effects in
the survey performances
C. accidental errors occur inspite of every precaution is
taken
D. all the above.
Answer => D
273. The method of
reversal
A. is usually directed to examine whether a certain part
is truly parallel or perpendicular to another
B. makes the erroneous relationship between parts evident
C. both A and B
D. neither A nor B.
Answer => D
274. The apparent
error on reversal is
A. equal to the actual error
B. twice the actual error
C. thrice the actual error
D. none of these.
Answer => B
275. Pick up the
correct statement from the following :
A. the apparent error on reversal is twice the actual
error
B. the correction may be made equal to half the observed
discrepancy.
C. the good results may be obtained from a defective
instrument by reversing and taking the mean of two erroneous results
D. all the above.
Answer => D
276. Pick up the
correct statement from the following :
A. it is difficult to eliminate an error completely at
first trial
B. instability of the instrument makes it almost
impossible to adjust it satisfactorily
C. adjustment screws must be left bearing firmly but
should never be forced
D. all the above.
Answer => D
277. The power of a lens
A. is reciprocal of its focal length
B. is positive if it is a convex lens
C. is negative if it is a concave lens
D. is measured in diopter.
Answer => D
278. Diopter is
the power of a lens having a focal length of
A. 25 cm
B. 50 cm
C. 75 cm
D. 100 cm
Answer => D
279. Pick up the
correct statement from the following :
A. the power of a lens is the reciprocal of its focal
length
B. the unit of power of the lens is diopter
C. the power of two or more thin lenses in contact is the
power of the combination of the lenses
D. all the above.
Answer => D
280. Two concave
lenses of 60 cm focal length are cemented on either side of a convex lens of 15
cm focal length. The focal length of the combination is
A. 10 cm
B. 20 cm
C. 30 cm
D. 40 cm.
Answer => C
281. The lens
equation ? = ? + ? is applicablef
A. when the thickness of the lens is small
B. only to conjugate distances along the principal axis
C. the computed quantities are accurate enough for
geometrical optics of simple distances
D. all the above.
Answer => D
282. The defect of
a lens whereby rays of white light proceeding from a point get dispersed into
their components and conveyed to various foci, forming a blurred and coloured
image is known as
A. chromatic aberration
B. spherical aberration
C. astigmatism
D. coma.
Answer => A
283. Flint glass
A. has slightly the greater refracting power than crown
glass
B. has roughly double refracting power than that of crown
C. and crown glass proportions yield the required focal
length and neutralise the dispersion produced by the convex lens at the
emergence from the concave
D. all the above.
Answer => D
284. Pick up the
correct statement from the following :
A. spherical aberration may be reduced by diminishing the
aperture
B. spherical aberration may be minimised by replacing the
single lens by a combination of the lenses.
C. in telescope objectives, a combination of convex lens
and concave lens is used.
D. all the above.
Answer => D
285. A lens or
combination of lenses in which the following defect is completely eliminated is
called aplanatic
A. spherical aberration
B. chromatic aberration
C. coma
D. astigmatism.
Answer => A
286. The Huygen's
telescope eye piece
A. is aplanatic
B. achromatic
C. both A and B
D. neither A nor B.
Answer => C
287. Pick up the
correct statement from the following :
A. a refracting telescope consists optically of two
lenses
B. the principal axes of both the lenses coincide the
optical axis of the telescope
C. the lens nearer the object to be viewed is convex and
is called objective
D. all the above.
Answer => D
288. Pick up the correct
statement from the following :
A. in astronomical telescope, the rays from the object
after refraction at the objective are brought o a focus before
B. in Galileo's telescope, the rays from the object get
refracted at the objective and are intercepted by the eyepiece before a real
image is formed
C. a line passing through the optical centre of the
objective traversing through the eyepiece, is called line of sight .entering
the eyepiece to produce a real inverted image in front of the eye piece
D. all the above.
Answer => D
289. Pick up the
correct statement from the following :
A. the diaphragm is placed between eyepiece and the
objective but nearer to the former
B. the diaphragm is placed between the eyepiece and
objective but nearer to the later
C. the outer component of the objective is a
double-convex lens of crown glass
D. all the above.
Answer => D
290. In an
internal focusing telescope
A. the objective is at a fixed distance from the
diaphragm
B. the focusing is done by the sliding of a divergent
lens.
C. the focusing divergent lens is situated at about the
middle of the tube
D. all the above,
Answer => D
291. The minimum
range for sliding the focusing lens in the internal focusing telescope for
focusing at all distances beyond 4 m is
A. 5 mm
B. 10 mm
C. 15 mm
D. 20 mm.
Answer => D
292. Pick up the
correct specification of Ramsden eyepiece from the following :
A. it consists of two equal piano convex lenses
B. the curved surfaces of piano-convex lenses face each
other
C. the two lenses are separated by a distance equal to
2/3 of the focal length of either lens.
D. all the above.
Answer => D
293. Pick up the
correct statement from the following :
A. if the image of the object does not fall on the plane
of the cross-lines, parallax exists
B. parallax has nothing to do with the eyepiece
C. the eyepiece is adjusted for clear vision of the cross
hairs
D. all the above.
Answer => D
294. The 10 mm
markings on a levelling staff placed at 20 m are separated by ?
A. 1000 radian
B. 1500 radian
C. 2000 radian
D. 2500 radian
Answer => C
295. Resolving
power of a telescope depends on
A. the diameter of the aperture
B. the pupil aperture of the eye
C. the diameter of the object glass
D. all the above.
Answer => D
296. The
longitudinal section of the surface of bubble tube is
A. straight
B. circular
C. parabolic
D. elliptic.
Answer => B
297. The bubble
tube is nearly filled with
A. alcohol or chloroform
B. a liquid which is very mobile
C. a liquid having low freezing point
D. all the above.
Answer => D
298. The radius of
curvature of the arc of the bubble tube is generally kept
A. 10 m
B. 25 m
C. 50 m
D. 100 m.
Answer => D
299. While
rotating the theodolite in the horizontal plane, the bubble of the bubble tube
takes up the same position in its tube, it indicates
A. the rotation axis is vertical
B. the trummion axis is horizontal
C. the line of collimation is perpendicular to vertical
axis
D. none of the above
Answer => A
300. For high
sensivity of the bubble tube
A. a liquid of low viscosity is used
B. a liquid of low surface tension is used
C. the bubble space should be long
D. all the above.
Answer => D
301. Pick up the
correct statement from the following :
A. in the earth's magnetic field, a magnetic needle rests
in magnetic meridian
B. the angle between the true meridian and the magnetic
meridian is called magnetic variation
C. one end of the magnetic needle supported at its centre
of gravity tends to dip down towards the nearer magnetic pole of the earth
D. all the above.
Answer => D
302. Pick up the
correct statement from the following :
A. the length of the brass handle is included in the
length of chain
B. the handles are on swivel joints to prevent twisting
of the chain
C. the fifth tag from either end of the chain is numbered
5
D. all the above.
Answer => D
303. In a
theodolite
A. the telescope axis is perpendicular to transit axis
B. the axis of rotation is perpendicular to transit axis
C. the telescope axis, the transit axis and the rotation
axis pass through the centre of theodolite
D. all the above.
Answer => D
304. A theodolite
is said to be in perfect adjustment if
A. rotation axis is vertical to the transit axis
B. transit axis is perpendicular to line of collimation
C. line of collimation sweeps out a vertical plane while
the telescope is elevated or depressed
D. all the above.
Answer => D
305. Pick up the
correct statement from the following :
A. the tangent screw enables to give small movement under
conditions of smooth and positive control
B. standing on the tripod is the levelling head or trib
arch
C. the levelling screws are used to tilt the instrument
so that its rotation axis is truly vertical
D. all the above.
Answer => D
306. Pick up the
correct statement from the following :
A. the theodolite in which telescope can be rotated in
vertical plane is called a transmit
B. when the vertical circle is to the left of the
telescope during observation, it is called to be in left face
C. when the vertical circle is to the right of the
telescope during observation, it is called to be in right face
D. all the above.
Answer => D
307. In optical
reading instruments
A. the vertical circle is usually continuous from 00 to
3590
B. the readings increase when the telescope is elevated
in the face left position
C. the readings decrease when the telescope is elevated
in the face right position
D. all the above.
Answer => D
308. Pick up the
correct statement from the following :
A. the eyepiece plays no part in defining the line of
sight
B. the diaphragm plays no part in defining the line of sight
C. the optical centre of the objective plays no part in
defining the line of sight
D. none of these.
Answer => A
309. Which one of the following statements is correct ?
A. when the axes of rotation of the graduated circle and
the verniers are not coincident, the instrument possesses eccentricity
B. the mean of the readings of the two verniers gives
correct reading free from the eccentricity
C. one vernier may be used if the readings of two
verniers differ by a constant
D. all the above.
Answer => D
310. Pick up the correct statement from the following :
A. with both handles in his left hand, the chain man
throws out the chain with his right hand and the second chain man assists him
to free it from knots
B. the follower of the chaining operation should be more
experienced than the leader
C. at the end of the tenth chain length, the two chain
men meet and the ten arrows are handed over to the leader
D. all the above.
Answer => D
311. The chaining on sloping ground is
A. easier along the falling gradient
B. easier along the up gradient
C. equally convenient along falling as well as up
gradient
D. all the above.
Answer => A
312. While measuring the distance between two points
along upgrade with the help of a 20 m chain, the forward end of the chain is
shifted forward through a distance
A. 20 (sin e - 1)
B. 20 (cos 0 - 1)
C. 20 (sec - 1)
D. 20 (cosec 0 - 1).
Answer => C
313. The slope correction for a 3? slope for a length of
100 m, is
A. 0.11 m
B. 0.12 m
C. 1.13 m
D. 1.14 m.
Answer => D
314. The slope correction may be ignored if
A. the slope of the ground is less than 3?
B. to slope of the ground is say 1 in 19
C. both A and B
D. neither A nor B.
Answer => C
315. Which one of the following mistakes/ errors may be
cumulative + or -
A. bad ranging
B. bad straightening
C. erroneous length of chain
D. sag.
Answer => C
316. Which of the following introduces an error of about
1 in 1000 off 20 m chain is used
A. length of chain 20 mm wrong
B. one end of the chain 0.9 m off the line
C. one end of chain 0.9 m higher than the other
D. all the above.
Answer => D
317. Pick up the incorrect statement from the following :
A. while measuring a distance with a tape of length
100.005 m, the distance to be increasing by 0.005 m for each tape length
B. an increase in temperature causes a tape to increase
in length and the measured distance is too large
C. the straight distance between end points of a
suspended tape is reduced by an amount called the sag correction
D. a 100 m tape of cross section 10 mm x 0.25 mm
stretches about 10 mm under 5 kg pull.
Answer => B
318. If 0 is the slope of the ground and 1 is the
measured distance, the correction is
A. 21 sin2 0/2
B. 21 cos2 0/2
C. 21 tan2 0/2
D. 21 cot2 0/2.
Answer => A
319. If h is the difference in level between end points
h2 h4 separated by 1, then the slope correction is ? + ? . The second term may
be neglected if the value of h in a 20 m distance is less than
A. -2 M
B. 1 m
C. 2 m
D. 3 m.
Answer => D
320. If 50 m point of a 100 m tape is 50 cm off line, and
50 m sections are straight, an error is generated equal to
A.10,000
B.15,000 C 20,000
C.25,000
D.
Answer => C
321. The sag of 50 m tape weighing 4 kg under 5 kg
tension is roughly
A. 0.043 m
B. 0.053 m
C. 0.063 m
D. 0.083 m.
Answer => D
322. The Random errors tend to accumulate proportionally
to
A. numbers of operations involved
B. reciprocal of operations involved
C. square root of the number of operation involved
D. cube root of the number of operation involved.
Answer => C
323. The additional lines which are measured to show the
correctness of the chain surveying are called :
A. check dines
B. proof lines
C. tie lines
D. all of these.
Answer => D
324. Pick up the correct statement from the following :
A. the framework which consists of a series of connected
lines, the lengths and directions of which are found from measurements, is
called a traverse.
B. the system of a series of lines which forms a circuit
which ends at the starting point, is called a closed traverse
C. the traverse that starts from a point already fixed in
some survey system and ends on another such point, is called a controlled
traverse
D. all the above.
Answer => D
325. Pick up the correct statement from the following :
A. The horizontal angle between magnetic meridian and
true meridian at a place is called magnetic declination or variance of the
compass
B. the imaginary lines which pass through points at which
the magnetic declinations are equal at a given time are called isogonic lines
C. the isogonic lines through places at which the
declination is zero are termed agonic lines
D. all the above.
Answer => D
326. If the declination of the needle is 10? W
A. each of the whole circle reckoning has to be micros by
10?
B. in the quadrantal method, the correction is positive
in the 1st and 3rd quadrants
C. in the quadrantal method, the corrections is negative
in 2nd and 4th quadrants
D. all the above.
Answer => D
327. There are two stations A and B. Which of the
following statements is correct :
A. the fore bearing of AR is AB.
B. the back bearing of AB is BA.
C. the fore and back bearings of AB differ by 1800
D. all the above.
Answer => D
328. Pick up the correct statement from the following
A. 1 second of arc corresponds to a displacement ratio of
1: 206,300
B. 1 degree of arc corresponds to a displacement ratio of
1: 57
C. the angular errors tend to propagate themselves along
a traverse as the square root of the number of stations
D. all the above.
Answer => D
329. If deflection angles are measured in a closed
traverse, the difference between the sum of the right-hand and that of the left
hand angles should be equal to
A. 0?
B. 90?
C. 180'
D. 360?.
Answer => D
330. Pick up the correct statement from the following :
A. to locate a gross error in bearing that may exist in
controlled theodolite traverse, we may plot the traverse from each end. The
traverse station having the same coordinates by each route is the one where the
error lies
B. to locate a gross error in bearing, in a controlled
traverse, we plot the traverse and the station through which perpendicular to
sector of the closing line passes is the station at which the error was made
C. to locate a gross error due to taping in a controlled
traverse, we plot the traverse to a convenient scale. The bearing of the
closing error will be approximately the same as that of the leg in which the
gross error consists
D. all the above.
Answer => D
331. Pick up the
correct statement from the following :
A. the lines of sight while observing back sight and fore
sight lie in the same horizontal plane
B. the staff readings are measurements made vertically
downwards from a horizontal plane
C. the horizontal plane with reference to which staff
readings are taken, coincides with the level surface through the telescope axis
D. all the above.
Answer => D
332. In levelling
operation
A. when the instrument is being shifted, the staff must
not be moved
B. when the staff is being carried forward, the
instrument must remain stationary
C. both A and B
D. neither A nor B.
Answer => C
333. Pick up the
correct statement from the following :
A. an observation or the resulting reading with the level
on a levelling staff is called sight
B. a back sight is the first sight taken after setting up
the instrument in any position
C. the first sight on each change point is a fore sight
D. all the above.
Answer => D
334. A back sight
A. is always taken on a point of known elevation or can
be computed
B. is added to the known level to obtain the instrument
height
C. taken on an inverted staff is treated as negative
D. all the above.
Answer => D
335. Keeping the instrument height as 1 m, length of
staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope
must be less than
A. 25 cm
B. 20 m
C. 45 m
D. 10 m.
Answer => C
336. Keeping the instrument height as 1.5 m, length of
staff 4 in, the slope of the ground as 1 in 10, the sight on the down-slope,
must be less than
A. 30 m
B. 25 m
C. 20 m
D. 15 m.
Answer => B
337. The total change in level along the line is equal to
total back sights
A. minus total fore sights
B. the total rises minus total falls
C. the reduced level of last point minus reduced level of
the first point
D. all the above.
Answer => D
338. The difference of level between a point below the
plane of sight and one above, is the sum of two staff readings and an error would
be produced equal to
A. the distance between the zero of gradient and the foot
of the staff
B. twice the distance between the zero of graduation and
the foot of the staff
C. thrice the distance between the zero of graduation and
the foot of the staff
D. none of the above,
Answer => B
339. If L is in kilometres, the curvature correction is
A. 58.2 L2 mm
B. 64.8 L2 mm
C. 74.8 L2 mm
D. 78.4 L2 mm.
Answer => D
340. The combined effect of curvature and refraction over
a distance L kilometres is
A. 67.2 L2 mm
B. 76.3 L2 mm
C. 64.5 L2 mm
D. none of these.
Answer => A
341. Pick up the method of surveying in which field
observations and plotting proceed simultaneously from the following
A. chain surveying
B. compass surveying
C. plan table surveying
D. tacheometric surveying.
Answer => C
342. Which one of the following procedures for getting
accurate orientation is the most distinctive feature of the art of plane
tabling
A. radiation
B. intersection
C. traversing
D. resection.
Answer => D
343. Contour lines of different elevations can unite to
form one line, only in the case of
A. a vertical cliff
B. a saddle
C. a water shed line
D. a hill top.
Answer => A
344. Pick up the correct statement from the following
A. the contour lines having the same elevation cannot
unite and continue as one line
B. a contour can not end abruptly, but must ultimately
close itself not necessarily within the limits of map.
C. the direction of steepest slope at a point on a
contour is at right angles to the contour
D. all the above.
Answer => D
345. Assertion :
The plane horizontal at one point does not precisely coincide with that through
any other point. Reason : The directions of plumb lines suspended at different
points in a survey are not strictly parallel.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
346. Assertion :
In extensive survey operations in any area, it is always better to use the
information of geodetic surveys available in the area.Reason : It saves the
engineer or surveyor a great deal of work in providing his own control points
and also enables him to obtain most useful checks at various stages of his
work.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
347. Assertion :
The working from the whole to the part presents the accumulation of error.
Reason : The error tends to magnify itself very quickly.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
348. Assertion :
An accurate basic control is required to be established for surveying an area
of large extent. Reason : Large errors are prevented and minor ones are
controlled and localised.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
349. Assertion :
While making adjustment of survey instruments, they should be placed on firm
ground Reason : Instability of the instrument makes it impossible to adjust it
satisfactorily.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
350. Assertion :
The prisms of large deflection are not normally found in surveying instruments.
Reason : The light of different colours is differently deflected.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
351. Assertion :
An optical component known as parallel plate is widely used in surveying
instruments. Reason : This displaces a beam of light without changing its
direction as there is no effect of colour dispersion.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
352. Assertion :
The complete achromatism can not be achieved by the use of only flint glass and
crown glass. Reason : The ratio of their dispersive powers varies at different
parts of the spectrum.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => B
353. Assertion :
The component rays of a beam proceeding from a point on the principal axis are
not refracted to pass through a single point. Reason : They are focussed
differently according to their positions of incidence on the lens.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
354. Assertion :
The Galileo's telescope is not suitable for surveying instruments. Reason : It
does not produce a real image.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
355. Assertion :
The interior of the body of internal focusing telescope is pointed dull black.
Reason : It prevents reflection from internal surfaces of the telescope.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
356. Assertion :
The most convenient and sensitive device for determining the position of a
horizontal and a vertical plane is the bubble tube. Reason : The action of
bubble tubes depends on the fact that the free surface of still liquid is a
level surface.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
357. Assertion :
The flat top with a control screw is provided in the theodolite tripod. Reason
: It is possible to provide 30 or 40 mm of lateral adjustments to facilitate
the precise centering of the instrument over a ground mark.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
358. Assertion :
The main advantage of the non-transiting telescopes was that it did not require
high supports. Reason : The instrument is made comparatively compact.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
359. Assertion :
The change of zero is neither possible nor feasible. Reason : The vertical
angles are influenced by atmosphefic refraction, the effects of which are
somewhat irregular,
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
360. Assertion :
The counting of the paces by the leader when pulling the chain forward should
be carefully noted. Reason : It saves the follower to search for the arrow in
high grass.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
361. Assertion :
Measurement on the ground yields better results than stepping. Reason : On
short slopes of varying degree the method of stepping is quicker and generally
used.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => B
362. Assertion :
The refined ranging in chaining is necessary if offsetting is to be done.
Reason : The offsets are put in error by the full amount of the divergence.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
363. Assertion :
The measured distance of a line at a height above sea level is longer than the
distance between the points that are vertically below the ends of line. Reason
: The curvature of the earth increases the length.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
364. Assertion :
If an area has more than three straight boundaries, it is not sufficient to
measure the sides only. Reason An infinite number of figures can be drawn
satisfying the data.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
365. Assertion :
The true meridians through the various stations of a survey are not parallel to
each other.Reason : These meridians converge from the equator to the poles,
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
366. Assertion :
The amount and direction of the declination is different at different parts of
the earth's surface. Reason : In some places the needle points west, and in
others, east of true north.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
367. Assertion :
In the whole circle method of a bearing is completely specified by an angle.
Reason : There is no need to note the cardinal points
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => B
368. Assertion :
The line of sight between adjacent stations should be as high above ground
level as possible to avoid grazing rays. Reason : The grazing lines cause minor
in accuracies in observing the angles.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => B
369. Assertion : The level surface is not a plane, nor
has it a regular form. Reason : The local deviations of the plumb line is
caused due to irregular distribution of the mass of the earth's crust.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
370. Assertion : The height of instrument is open to
objection. Reason : A mistake in intermediate reduction may pass unnoticed.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
371. Assertion : The wear at the bottom of a staff is of
no consequence.Reason : It is unnecessary to keep the zero of graduation at the
foot of the staff because the differences of staff readings represent
differences of level.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
372. Assertion : The staff should be held truely
vertical. Reason : If the staff is held off the plumb, the reading will be too
great.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct explanation
of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
373. Assertion : The error accumulated in working up one
side is more or less completely neutralised in descending the other side.
Reason : While levelling up a slope the observer reads up the staff in taking
back sights and near the bottom for foresights and during levelling down hill,
the fore sights are longer than back sights.
A. Both A and R are true and R is the correct explanation
of A
B. Both A and R are true but R is not a correct
explanation of A
C. A is true but R is false
D. A is false but R is true.
Answer => A
374. What is the correct sequence of the following stages
in the plane table survey ? 1. Fixing the plane table on tripod 2. Orientation
of the plane table 3. Levelling of the plane table 4. Centering of the plane
table Choose the answer from the codes given below : Codes:
A. 1, 2, 3, 4
B. 2, 4, 1, 3
C. 1, 4, 3, 2
D. 1, 3, 4, 2
Answer => D
375. A, B and C are the ground stations whose locations
on the plane table are respectively a, b and c. To locate the position of the
plane table, which is the correct sequence of operation by the Bessel' s
method.1. Aligning the alidade along ba, sight A. Pivoting the alidade about b,
sight c. Draw ray be.2. Aligning the alidade along ab, sight B. Pivoting the
alidade about a, sight C. Draw a ray ac to cut the ray be at d.3. Aligning the
alidade along dc, sight c.4. Pivoting the alidade about a and b, sight A and B
in turn and draw rays to intersect the line dc. Choose the answer from the
codes given below :Codes :
A. 4,2,3,1
B. 1,3,4, 2
C. 1,2,3,4
D. 3,1, 2,4
Answer => C
376. What is the correct sequence of the following
columns of Gale's Traverse Table ?1. R.B.2. Included angle3. W.C.B.4. Length
Choose the answer from the codes given below : Codes:
A. 1, 2, 3, 4
B. 2, 3, 4, 1
C. 4, 2, 3, 1
D. 1, 4, 2, 3
Answer => C
377. A : A, B, C are the stations sighted from the plane
table Station P.R : The fix is most accurate when plane table station P and
stations A, B and C are on a circle.
A. Both A and R are true
B. A is true but R is not correct explanation
C. A is true but R is false
D. Both A and R are false.
Answer => B
378. If the angle
of slope of 10?, then correction per 100 links, is
A. 0.5 links
B. 1.0 links
C. 1.5 links
D. 2.2 links
Answer => C
379. Pick up the
correct statement from the following :
A. The mirro optical square makes use of the fact that a
ray of light reflected from two mirrors is turned through twice the angle
between the mirror.
B. The prismatic type of optical square employs a
pentagonal shaped prism
C. The cross staff consists essentially of an octagonal
brass box with slits cut in each face
D. All the above.
Answer => D
380. The defect of
chromatic aberration in a levelling telescope is remedied by using two lenses
which are cemented together
A. One being a concave lens of flint glass and the other
a convex lens of crown glass
B. One being a concave lens of crown glass and the other
a convex lens of flint glass
C. Both being a crown glass
D. Both being of flint glass.
Answer => A
381. Ramsden eye
piece which is free from spherical aberration consists of two identical
piano-convex lenses with their curved faces facing, and separated by a distance
equal to A One-fourth the focal length of either,
A. One-third the focal length of either
B. One-half the focal length of either
C. Two-third the focal length of either.
D.
Answer => D
382. All level
readings are taken to :
A. trunnion axis
B. vertical line
C. line of collimation
D. line of sight.
Answer => C
383. The first
reading made with the staff on a point of known reduced level, is called
A. fore sight
B. back sight
C. intermediate sight
D. bench mark.
Answer => B
384. The line
joining the points of equal altitude, is called
A. Contour
B. Vertical interval
C. Horizontal equivalent
D. None of these.
Answer => A
385. Pick up the
statement not applicable to Bowditch's method of traverse adjustment from the
following :
A. The probable error in the bearing of a traverse leg
due to some inaccuracy in angular measurement gives a displacement of one end
of the traverse leg, relative to the other end, equal and at right angles to
that displacement, due to probable error in a measurement of its length.
B. The probable error in length (1) is taken to be
proportional to IT
C. The total probable error is equal to the square root
of twice the square of the displacement due to the probable error in linear
measurement
D. None of the above.
Answer => D
386. Pick up the
correct statement regarding the transit rule for traverse adjustment from the
following :
A. The transit rule is based on the method of least squares
B. The corrections are made in both latitude and
departure even if a line has no latitude or departure
C.latitude Correction of departure of a traverse leg
Total correc-
D.
Answer => C
387. For
calculating the area enclosed by an irregular boundary we generally use :
A. Planimeter
B. Bowditch's rule
C. Simpson's rule
D. Trapezoidal rule,
Answer => A
388. For
calculating the area of an enclosed traverse by using the coordinates of the
traverse stations, we make use of
A. longitudes
B. latitudes
C. double longitudes
D. both A and B
Answer => A
389. Which one of
the following statements is not applicable to the Simpson's Rule for the
calculation of areas :
A. It is most accurate method of calculating areas
B. It is assumeed that the irregular boundary is composed
of a series of parabolic areas
C. The geometrical figure must be divided into an odd
number of equal strips
D. None of these.
Answer => C
390. Simpson's
Rule for areas states that the area enclosed by a curvilinear figure divided
into an even number of strips of equal width : equal to one third the width of
a strip multiplied by the sum of the two extreme offsets
A. twice the sum of the remaining odd offsets, and four
times the sum of the even offsets
B. Thrice the sum of the remaining odd offsets, and four
times the sum of the even offsets
C. Four times the sum of the remaining odd offsets, and
four times the sum of the even offsets
D. Four tiems teh sum of the remaining odd offsets, and
twice the sum of the even offsets,
Answer => A
391. Which one of
the following statements is not true for mass haul diagrams
A. The diagram is plotted after the earthwork quantities
have been computed
B. The aggregate volumes in cubic metres are plotted as
the ordinates
C. The horizontal base line is plotted to the same scale
as the profile for plotting the volumes
D. None of the above.
Answer => D
392. The readings
on back staff A and forward staff B are respectively 3.222 m and 1.414 m. Which
one of the following statements is true
A. The back staff A is at lower level than that of
forward staff Bo
B. The forward staff B is at higher level than that of
the back staff B.
C. The difference is level between staves A and B is
1.808 m.
D. All the above.
Answer => D
393. Which one of
the following statements regarding levelling is correct ?
A. If second reading is less than the first, there is a
rise.
B. If second reading is greater than the first, there is
a fall.
C. If second reading is equal to the first, the two
stations are at same level.
D. All the above.
Answer => D
394. The following
technical terms are generally used in levelling :1. Change point2. Intermediate
staff reading3. Back staff reading4. Forward staff readingTheir correct
sequence is as under:
A. 1,2,3,4
B.2,3,4,1
C.3,2,4,1
D.4,1,2,3
Answer => C
395. Pick up the
correct formula for the probable error per kilometre in ordinary levelling due
to :
A. reading = ? 1.6 mm
B. displacement = ? 7.5 mm
C. combined effect of reading and displacement = ? 7.7 mm
D. all the above.
Answer => C
396. The mean of
two vertical angles taken on two faces of a theodolite is the true verticala
angle
A. provided the altitude bubble is brought to the centre.
B. even if the altitude bubble is nor brought central.
C. even if the altitude bubble remains either right or
left of the central position during both forces savals.
D. None of the above.
Answer => A
397. Pick up the
incorrect statement from the following :
A. The lines joining number of stations chosen to fulfil
the demands of the survey is called traverse lines.
B. If the lines form a polygon, then a closed traverse is
obtained.
C. A traverse run between two triangulation or traverse
station, is called an open traverse.
D. None of the above.
Answer => C
398. The whole
circle bearing are measured :
A. Clockwise from south, from 0? to 360?
B. Clockwise from north, from 00 to 360?
C. Anti-clockwise from north, from O'r to 3600
D. Anti-clockwise from south, from 00 to 360?
Answer => B
399. Weisbach
triangle is generally used
A. for .establishing sewer lines
B. for establishing a connection of surface and
underground lines
C. for computation of astronomical data
D. for hydrographical surveys.
Answer => B
400. Pick up the
correct statement from the following :
A. The method of measuring angular measurements in
degrees, minutes and seconds, is called the sexagesimal system
B. The method of measuring angular measurements in
grades, centesimals and centecentesimals, is called centesimal system
C. Incentesimal system, angles are expressed as decimals
D. All the above.
Answer => D
401. Pick up the
correct statement from the following :
A. Mass haul diagrams is of great value inplanning and
construction of railway/road embankments
B. The aggregate volumes of earthwork quantities are
plotted as ordinates
C. The distance specified for transporting the excavated
anaterial in the bill estimate, is called free-haul
D. All the above.
Answer => D
402. Pick up the
planetable method which needs the help of other planetable for surveying the
entire area completely from the following
A. Method of radiation
B. Method of intersection
C. Method of resection
D. Method of traversing.
Answer => D
403. Pick up the
correct statement regarding the nautical sextant from the following :
A. It contains a 60? arc divided in degrees.
B. Its index glass is wholly silvered and pivoted at the
pivot end of index arm.
C. Its horizon glass is half-silvered glass.
D. All the above.
Answer => D
404. Assume that a
and 13 are the angles of elevations of two points. If the observed horiontal
angle by a sextant is 0 then the true horizontal angle is
A. is n 0 - sin a . sin 13
B.cos 0 - cos a . cos 13
C.sin 0 + sin a. sin 13
D. cos 0 - cos a. cos 13
Answer => B
405. Which one of
the following statements is not correct in respect of a prismatic compass :
A. It consists of a glass-topped case of diameter 114 mm.
B. An engine-divided aluminium ring carrying the needle
rotates on a jewelled centre
C. The scale is divided round the ring from 0? to 360? in
degrees and half degree in an anticlock wise direction
D. The zero reading is engraved at the south end of the
graduated ring.
Answer => C
406. The actual
staff intercept (Si) for a 6? tilt and 0 angle of slope is obtained from the
following formula s cos 0 Si - cos (0 - 6) provided : -
A. the vertical angle 0 is not greater than ? 30?
B. The vertical angle 0 is always greater than angle of
tilt 6
C. The angle of tilt is small and not greater than 3?
D. All the above.
Answer => D
407. For a design
speed of 80 km/h, the normal radius (m) for 4 percent super elevation is :
A.200
B.500
C.275
D.75
Answer => B
408. Pick up the
correct statement from the following :
A. super elevation = 1 in 314 -- where V is the designV2
speed in km/h and R is the radius in metres
B. superelevation should not be steeper than 7% (1 in
14.5)
C. superelevation should not be flatter than 1 in 48
D. All the above.
Answer => D
409. Pick up the
correct correction applied to a triangulation base from the following :
A. The correction for tension is positive if applied
tansion is greater than standard tension
B. The sag correction is negative
C. The slope correction is negative
D. All the a12ove. gulation station
Answer => D
410. The distance
between satellite station and main trian-
A. should be 10 to 15 metres
B. shoulb be correct to 5 mm
C. should retain an accuracy of 0.1 sec
D. all the above.
Answer => D
411. Pick up the
incorrect statement regarding the selection of the current meter station from
the following :
A. The channel should be regular in shape and straight
up-and down stream of resection.
B. The channel bed should be free of obstruction.
C. The flow in the channel should be turbulent.
D. None of these.
Answer => C
412. Pick up the
correct statement from the following :
A. The theodolite is essentially an English instrument
from its first inception
B. The survey of India provided the popularity to the
plane table as survey instrument
C. The plane table is used to prepare map in the field
without the direct measurement of any angles and without calculation
D. All the above.
Answer => D
413. Usefullness
of plane table is enhanced by providing :
A. The Indian tangent clinometers
B. The box compass
C. The optical square
D. The planimeter
Answer => A
414. For the
revison of an existing survey with the heldp of plane table we generally use
A. radiation method
B. intersection method
C. resection method
D. none of these.
Answer => C
415. A point
determined by resection on a plane table is called :
A. survey point
B. survey station
C. planetable fix
D. none of these.
Answer => C
416. Pick up the
correct rule used to assist in determining the plane table fix from the
following :
A. The plane table fix will be inside the triangle of
error if the instrument is inside the triangle formed by the three ground
points sighted
B. Looking along the rays from the plane table towards
the points to which they refer, the plane table fix will lie either to the
right of all three rays or to the left of all three rays
C. The perpendicular distances of the planetable fix from
the tree rays are proportional to the distances from the plane table of the
corresponding points
D. All the above.
Answer => D
417. The stadia
lines of a tacheometer are :
A. top line and middle line
B. middle line and bottom line
C. top line and bottom line
D. none of these.
Answer => C
418. If the
additive constant of a tacheometer is very small but not actually zero, which
one of the following approximate formula may be used : sn2
A. H = (C + K) cos2
B. V = (C, + K)i20
C. Both A and B
D. Neither A nor B
Answer => C
419. Tilt of the
vertically held staff increases the intercept when the telescope points :
A. uphill and the staff tilted away from the telescope
B. down hill and the staff tilted away from the telescope
C. up hill and the staff titled towards the telescope
D. none of the above.
Answer => A
420. If a staff is
held with a 2? tilt when the angle of elevation is 15?, the probable error is :
A. 1 :50
B. 1 :75
C. 1 :100
D. 1 :125
Answer => B