General Question about Surveying and Levelling Part 2

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Question No. 41
Which of the following statements is incorrect?
(A) Error due to refraction may not be completely eliminated by reciprocal levelling
(B) Tilting levels are commonly used for precision work
(C) The last reading of levelling is always a foresight
(D) All of the above statements are incorrect
Answer: Option D
Question No. 42
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: Option D
Question No. 43
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: Option A
Question No. 44
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: Option B
Question No. 45
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: Option C

Question No. 46
In the cross-section method of indirect contouring, the spacing of cross-sections depends upon
(i) Contour interval
(ii) Scale of plan
(iii) Characteristics of ground
The correct answer is
(A) Only (i)
(B) (i) and (ii)
(C) (ii) and (iii)
(D) (i), (ii) and (iii)
Answer: Option D
Question No. 47
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: Option B
Question No. 48
A and B
sextant. The correct horizontal angle is
(A) cos - (B) cos - (C) cos - (D) None of these
Answer: Option A
Question No. 49
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: Option C
Question No. 50
Three point problem can be solved by
(A) Tracing paper method
(B)
(C)

(D) all of the above
Answer: Option D
Question No. 51
A dumpy level is set up with its eye-piece vertically over a peg . The height from the top of
peg to the centre of the eye-piece is 1.540 m and the reading on peg is 0.705 m. The level is
then setup over . The height of the eye-piece above peg is 1.490 m and a reading on is
2.195 m. The difference in level between and is
(A) 2.900 m
(B) 3.030 m
(C) 0.770 m
(D) 0.785 m
Answer: Option C
Question No. 52
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) 4/3
(D) 3/2
Answer: Option D
Question No. 53
The bellow figure is a conventional sign of
(A) Mosque
(B) Temple
(C) Church
(D) Idgah
Answer: Option D
Question No. 54
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: Option D

Question No. 55
Hydrographic surveys deal with the mapping of
(A) Large water bodies
(B) Heavenly bodies
(C) Mountainous region
(D) Canal system
Answer: Option A
Question No. 56
Bowditch rule is applied to
(A) An open traverse for graphical adjustment
(B) A closed traverse for adjustment of closing error
(C) Determine the effect of local attraction
(D) None of the above
Answer: Option B
Question No. 57
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: Option D
Question No. 58
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 termedagonic lines
(D) All the above
Answer: Option D
Question No. 59
Straight, parallel and widely spaced contours represent
(A) A steep surface
(B) A flat surface
(C) An inclined plane surface
(D) Curved surface
Answer: Option C
Question No. 60
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: Option A
Question No. 61
For a tachometer the additive and multiplying constants are respectively
(A) 0 and 100
(B) 100 and 0
(C) 0 and 0
(D) 100 and 100
Answer: Option A
Question No. 62
Correct distance obtained by an erroneous chain is:
(A) (Erroneous chain length/Correct chain length) × Observed distance
(B) (Correct chain length/Erroneous chain length) × Observed distance
(C) (Correct chain length/Observed distance) × Erroneous chain length
(D) None of these
Answer: Option A
Question No. 63
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: Option B
Question No. 64
The constant vertical distance between two adjacent contours, is called
(A) Horizontal interval
(B) Horizontal equivalent
(C) Vertical equivalent
(D) Contour interval
Answer: Option D

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