Surveying 80 Questions with Answers
1. Which one of the following statement is correct?
A.
In a
retrograde vernier, (n + 1) division on the primary scale are divided into
vernier scale
B.
A double
vernier consist of two simple venire scale
C.
In an
extended veriner, (2n + 1) primary divisions are divided into n equal divisions
on the veriner scale
D.
In a direct
veriner, (n + 1) primary divisions are divided into n equal divisions on the
veriner scale.
Answer: Option A
2.
Survey
of Indian was publishing toposheets using a scale of
A. 1: 1000 B. 1: 5000
C. 1:10000 D. 1:
50000
Answer: Option D
3.
Offsets
are
A.
Lateral
measurement made with respect to main survey lines
B.
Perpendicular
erected from chain lines
C.
Taken to
avoid unnecessary walking between station
D.
Measurement
which are not made at right angles to the chain line
Answer: Option B
4.
If
is the length of the chain, W is the weight of the chain and T is the tension
the sag correction for the chain line is
A. W2K2/24T3
B. W2L/24T2
C. W2L2/24T2
D. W2L3/24T3
Answer: Option B
5.
In
an inclined terrain, if the elevation difference between the two ends of a line is h and the inclined
length of the line is L, the correction for slope is
A. h2/L2 B. h2/2L2
C. 2h2/L2 D. h2/2L2
Answer: Option D
6.
Hypotenusal
allowance is given by the expression (adopting standard conventions)
A.
(1 – sec θ)
x measured distance
B.
(1 – cos θ)
x measures distance
C.
(sec θ – 1)
x measures distance
D.
(cos – 1) x
measured distance
Answer: Option C
7.
The
magnitude of “sag correction” during measurement of length by taping is
proportional to the
A.
Cube of the
weight of the tape, in kg per m run
B.
Cube root of
the weight of the tape, in kg per m run
C.
Square of
the weight of the tape in kg per m run
D.
Square root of
the weight of the tape, in kg per m run
Answer: Option C
8.
The
magnetic needle in a prismatic compass is placed
A.
At the
bottom of the graduated aluminum ring
B.
Above the
graduated aluminum ring
C.
Below the brass box
D.
Below the
needle lifter, but above the bottom inside the compass
Answer: Option A
9.
Diurnal
variation is greater
A.
In winter
than in summer
B.
At smaller
latitude than at higher latitudes
C.
At magnetic
equator points
D.
In summer
than in water
Answer: Option D
10.
The needle of a magnetic compass is generally
supported on a
A.
Bush bearing
B. Ball bearing
C. Needle bearing
D. Jewel bearing
Answer: Option D
11.
It is required to produce a small-scale map of
an area in magnetic zone in the filed itself. Which one of the following
surveys will be most appropriate for purpose?
A.
Chain
B.
Theodolites
C.
Plane Table
D.
Compass
Answer: Option A
12.
For locating an inaccessible point with the
help of only a plane table, one should use
A.
Traversing
B.
Resection
C.
Radiation
D.
Intersection
Answer: Option D
13.
The method of plane tabling commonly used for
establishing the instrument station the method of
A.
Radiation
B.
Intersection
C.
Resection
D.
Traversing
Answer: Option C
14.
Which one of the following surveys employs
alidade?
A.
Contour survey
B.
Archeological
survey
C.
Plane table
survey
D.
Reconnaissance
survey
Answer: Option C
15.
Which one of the following errors is more
severe in plane-table surveying?
A.
Defective
sighting
B. Defective orientation
C. Movement of board between sights
D. Non-horizontality of board when points sighted
are large difference of their elevation
Answer: Option B
16.
In a solution of the three-point problem in
plane table surveying, the converging of error is attained through
A.
Concyclic
concept
B. Bessel’s method
C. Triangle of error
D. Tracing paper method
Answer: Option C
17.
In a plane-table survey, the process of
determining the plotted position of a station occupied by the plane-table by
means of sights taken towards known points, the locations of which have already
been plotted is known as
A.
Radiation
B.
Resection
C.
Intersection
D.
Traversing
Answer: Option B
18.
The plotting of inaccessible in a plane-table
survey can be done by the method of
A.
Interpolation
B. Radiation
C. Intersection
D. Traversing
Answer: Option D
19.
The
arithmetical check for the computation of RL by “rise and fall” method is given
by
A.
ΣFS – ΣBS =
RL of first station point RL of Last station point = Σfall –ΣRise
B. ΣBS
– ΣFS = RL of first station point RL of last station point = ΣRise – Σfall
C. ΣBS
– ΣFS = RL of last station point – RL of first station point = ΣRise – Σfall
D. ΣBS
– ΣFS = RL of first station point – RL of last station point = ΣRise – Σfall
Answer: Option C
20.
The sensitiveness of a bubble tube in a level
would decrease if
A.
The radius
of curvature of the internal surface of the tube is increased
B.
The diameter
of the tube is increased
C.
The length
of the vapour bubble is increased
D.
The
viscosity of the liquid is increased
Answer: Option D
21.
Which one of the following surveys is employed
A.
Topographic
survey
B.
Cadastral
survey
C.
Geodetic
survey
D.
Cross-sectioning
and profile leveling
Answer: Option D
22.
Which one of the following method of leveling eliminates
the error due to curvature and refraction?
A.
Fly leveling
B. Levelling by equalizing the distance of back
sight and forsight
C. Check leveling
D. Precise leveling
Answer: Option B
23.
Which of the following sights will be
applicable for a change point?
A.
Back sight
B.
Intermediate
sight and fore sight
C.
Fore sight
D.
Back sight
and fore sight
Answer: Option D
24.
Error due to inclination of line of
collimation in leveling across a river can be eliminated by
A.
Reversion
B. Reciprocal ranging
C. Reciprocal leveling
D. Keeping level in middle
Answer: Option C
25.
In an instrument, the bubble tube with
divisions of l m and a radius of 0.9 m has the sensitivity of
A. 1/2 B. 1/70
C. 1/90 D. 1/900
Answer: Option D
26.
In case of leveling, backsight is
A.
A fixed
point of known elevation
B.
The last
staff reading taken before shifting the instrument.
C.
The first staff
reading taken after setting the instrument
D.
Any staff
reading taken on a point of unknown elevation
Answer: Option C
27.
A plane, which is perpendicular to the plumb
line through a point and is tangential to the level surface at that point is called
a
A.
Tangential
plane
B.
Vertical
plane
C.
Level plane
D.
Horizontal
plane
Answer: Option D
28.
While measuring horizontal angles by the
method of repetition with a theodolite, reading are taken on both the verniers.
Which one of the following errors will be eliminated by reading both the
verniers?
A.
Error due to
eccentricity of the centers
B.
Error due to
imperfect adjustment of the line of collimation
C.
Error due to
imperfect adjustment of the line of collimation
D.
Error due to
imperfect adjustment of the line of collimation
Answer: Option A
29.
Which one of the following is carried out by
two theodolite method?
A.
Circular
curve ranging
B.
Tacheometric
survey
C.
Geodetic
survey
D.
Astronomical
survey
Answer: Option A
30.
In a transit theodolite, error due to eccentricity
of vernier is eliminated by reading
A.
Both
verniers
B.
Both right
swing and left swing
C.
Right and
left faces
D.
Different
parts of main scale
Answer: Option A
31.
Turning of the theodolite telescope in vertical
plane by 1800 about the horizontal axis is known as
A.
Setting
B.
Centering
C.
Transiting
D.
Swinging
Answer: Option C
32.
What is the angle of intersection of a contour
and a ridge line?
A. 300 B.
00
C. 1800 D.
900
Answer: Option D
33.
A contour may be defined as an imaginary line
passing through
A.
Point on the
longitudinal section
B. Point of equal elevation
C. Point of equal local ground slope
D. Points of transverse section surveys
Answer: Option B
34.
A closed contour line with two or more higher
contours inside it will represent a
A.
Depression
B.
Hill
C.
Cave
D.
Well
Answer: Option B
35.
Which one of the following methods estimates
best the area of an irregular and curved boundary?
A.
Trapezoidal
method
B.
Simpson’s
method
C.
Average
ordinate method
D.
Mid-ordinate
method
Answer: Option B
36.
Which one of the following methods of
computing area assume that the short lengths of the boundary between the
ordinate are parabolic arcs?
A.
Average
ordinate rule
B.
Middle
ordinate rule
C.
Simpson’s
rule
D.
Trapezoidal
rule
Answer: Option C
37.
Refraction error is the least in case of
A.
Stadia
tachometry
B.
Tangential
tachometry
C.
Subtense bar
tachometry
D.
Omnimeters
Answer: Option C
38.
The subtence method is adopted when the ground
is
A. Flat
B. Inclined
C. Undulating
D. A water body
Answer: Option A
39.
If ‘g1’
and ‘g2’ are the two gradients, ‘r’ is the rate of change of grade
(%) per chain, the length of the vertical curve will be
A.
(g1 +
g2/r2)
B.
(g1
– g2/√r)
C.
(g1
– g2/r)
D.
(√g1 –g2/r3)
Answer: Option C
40.
Which one of the following linear method of
setting out a circular curve reference of the center of the curve?
A.
Offset from
chord produced
B. Radial offset
C. Perpendicular offset
D. Perpendicular offset
Answer: Option B
41.
Theory of error and adjustments deals with
minimizing the effects of
A.
Instrumental
errors
B.
Mistakes
C.
Systematic
errors
D.
Personal and
accidental errors
Answer: Option D
42.
Triangulation station selected close to the
main station for avoiding intervening obstruction is called
A.
Eccentric
station
B. Pivot station
C. Satellite station
D. Tie station
Answer: Option C
43.
What is the minimum number of satellites
required from which signals can be recorded to enable a global positioning
system receiver to determine latitude, longitude and altitude?
A. One B. Two
C. Three D. Four
Answer: Option C
44.
To uniquely determine the position of the user
using GPS, one needs to receive signals from at least
A. 1 satellite
B. 2 satellite
C. 3 satellite
D. 4 satellite
Answer: Option D
45.
One which one of the following are the third
generation electro-optical instrument based?
A.
Microwave
B.
Infra-red
C.
UV light
D.
He-laser
light
Answer: Option B
46.
What is the angle between two plane mirrors of
an optical square?
A. 300 B. 600
C. 450 D. 900
Answer: Option C
47.
Which one of the following verniers is
employed in Abney Level?
A.
Retrograde
vernier
B.
Double
vernier
C.
Double
folded vernier
D.
Extended
vernier
Answer: Option D
48.
Which one of the following instrument can be
used as clinometer?
A.
Prism square
B.
Line ranger
C.
Abney level
D.
Optical
square
Answer: Option C
49.
For setting may be depicted most accurately by
A.
Hachure’s
B.
Relief
shading
C.
Layer
tinting
D.
Contour
lines
Answer: Option D
50.
Altimetry may be depicted most accurately by
A.
Optical
square
B. Abney level
C. Alidede
D. Ceylon ghat tracer
Answer: Option A
51.
The line of intersection of a level surface
with the surface of ground
A.
Contour
interval
B.
Contour line
C.
Horizontal
equivalent
D.
Contour gradient
Answer: Option B
52.
The distance which can be represented
approximately on a plan by means of contour line is
A.
Horizontal
B. Vertical
C. Angular
D. None of these
Answer: Option B
53.
The method of contouring best suitable in
hilly regions is
A.
Tacheometric
method
B. Theodolite method
C. Graphical method
D. Plane table method
Answer: Option A
54.
The constant vertical distance between any two
consecutive contours is called the
A.
Horizontal
equivalent
B.
Vertical
equivalent
C.
Contour
interval
D.
Contour
gradient
Answer: Option C
55.
The contour interval depends on
A.
The nature
of ground
B.
The purpose
and extent of survey
C.
The scale of
map
D.
All of these
Answer: Option D
56.
The method for locating contours are
A.
Direct
method only
B.
Indirect
method only
C.
Direct and
indirect method
D.
Plane
tabling method
Answer: Option C
57.
Method used for contouring small areas and
where great accuracy required
A.
Indirect
method
B.
Cross
sectioning method
C.
Direct
method
D.
None of
these
Answer: Option C
58.
As compared to direct method of contouring,
the indirect method is
A.
More
accurate
B.
Less
accurate
C.
Slow
D.
Both B&C
Answer: Option B
59.
The process of spacing the contours
proportionally between the plotted ground points termed as the
A.
Contour
interpretation
B.
Contour
interpolation
C.
Contour
estimation
D.
Contour
computation
Answer: Option B
60.
A series of closed contour lines on the map
with lower to higher values inside them represents a
A.
Pond
B.
A hill
C.
Depression
D.
None of
these
Answer: Option B
61.
Closed contours with higher values outside
A.
Depression
B.
Hill
C.
Flat surface
D.
None of
these
Answer: Option A
62.
An imaginary line lying throughout on the
surface of the earth and preserving a constant inclination to the horizontal is
called
A.
Grade
contour
B.
Contour
gradient
C.
Contour
interval
D.
Horizontal
equivalent
Answer: Option B
63.
Graphical method of contour interpolation is
done with the help of
A.
Tracing
paper
B.
Tracing
cloth
C.
Both A&B
D.
By
arithmetic calcuations
Answer: Option C
64.
The best method of interpolation of contours
is
A.
Reduction
method
B.
Arithmetic
method
C.
Estimation
method
D.
Mechanical
Method
Answer: Option B
65.
The reduced level of a point on the ground is
called
A.
Spot level
B.
Spot height
C.
Spot
elevation
D.
Horizontal equivalent
Answer: Option A
66.
The minor instrument used for setting gradient
is
A.
Box sextant
B. Pentagraph
C. Boning rod and sight rail
D. Ceylon ghat tracer
Answer: Option D
67.
Contours are used to determine
A.
Economical
site for construction
B. Quantity of earth work
C. Suitable alignment for routes
D. All the above
Answer: Option D
68.
The limit of water level in a pond represents
a
A.
Vertical
line
B.
Contour
lines
C.
Contour
Gradient
D.
Horizontal
line
Answer: Option B
69.
Volume of earth work can be calculated by
A.
Mid-ordinate
B.
Average
ordinates
C.
End-ordinates
D.
All the
above
Answer: Option D
70.
It is
preferable to, use ink for the contours
A.
Brown
B.
Black
C.
Both A&B
D.
None of
these
Answer: Option C
71.
A transitteodolite fitted with a stadia
diaphragm is known as
A.
Tacheometer
B. Substance theodolite
C. Astronomical theodolite
D. Tellurometer
Answer: Option A
72.
The standard accuracy of tachoemetry distance
dertermination is
A. 1: 5000 B. 1: 100
C. 1:10000 D. 1:
1000
Answer: Option D
73.
The multiplying constant of tacheometer is
denote by
A.
f x l
B.
f + i
C.
F/i
D.
F-l
Answer: Option C
74.
The number of horizontal cross wires in a
stadia diaphragm is
A.
1
B.
3
C.
5
D.
6
Answer: Option B
75.
Anallactive lens is provided to
A. Make additive constant zero
B. Improve visibility
C. Improve the range of the telescope
D. To make multiplying constant zero
Answer: Option A
76.
Anallactive lens in tacheometer is
A.
Concave lens
B. Convex lens
C. Plane concave
D. Plane convex
Answer: Option B
77.
Tacheometer is adopted where
A.
limitation
of space exists
B.
Obstruction
due to large water harridan
C.
Crowded area
D.
The ground
is rough and undulating
Answer: Option B
78.
The method of tachoemetry in which the
interval on leveling staff variable and stadia hair intercept is fixed is known
as
A.
Movable hair
method
B.
Fixed hair
method
C.
Tangential
method
D.
Substance
hair method
Answer: Option B
79.
Substence bar is an instrument for
A.
Levelling
B.
Measurement
of horizontal distance in undulated ares
C.
Measurement
of horizontal distance in plane areas
D.
Determination
of volume
Answer: Option B
80.
If triangulation, the test shape of the
triangle would be
A.
Equilateral
B.
Right angled
C.
Isosceles
with two base angle of-560 14’ each
D.
Isosceles
with two base angle of-650 14’ each
Answer: Option C
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