51. The type of surveying which requires least office work is________________?
A. tacheomefry
B. trigonometrical levelling
C. plane table surveying
D. theodolite surveying
✅ The correct answer is option C.
Surveying MCQs
52. The permissible error in chaining for measurement with chain on rough or hilly ground is_____________?
A. 1 in 100
B. 1 in 250
C. 1 in 500
D. 1 in 1000
✅ The correct answer is option B.
53. The number of horizontal cross wires in a stadia diaphragm is ________________?
A. one
B. two
C. three
D. four
✅ The correct answer is option C.
54. If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is_______________?
A. 0.1
B. 0.4
C. 0.6
D. 1.33
✅ The correct answer is option B.
55. Dumpy level is most suitable when______________?
A. the instrument is to be shifted frequently
B. fly levelling is being done over long distance
C. many readings are to be taken from a single setting of the instrument
D. all of the above
✅ The correct answer is option C.
56. As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?
A. 98.70
B. 100.00
C. 102.30
D. 103.30
✅ The correct answer is option B.
57. For accurate work, the steel band should always be used in preference to chain because the steel band______________?
A. is lighter than chain
B. is easier to handle
C. is practically inextensible and is not liable to kinks when in use
D. can be easily repaired in the field
✅ The correct answer is option C.
58. The cross hairs in the surveying telescope are placed_____________?
A. midway between eye piece and objec¬tive lens
B. much closer to the eye-piece than to the objective lens
C. much closer to the objective lens than to the eye piece
D. anywhere between eye-piece and objective lens
✅ The correct answer is option B.
59. If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?
A. true R.L
B. more than true R.L
C. less than true R.L
D. none of the above
✅ The correct answer is option C.
60. During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is_____________?
A. 4 chains
B. 6 chains
C. 120 m
D. 180m
✅ The correct answer is option B.