A. ±2 mm
B. ±3 mm
C. ±5 mm
D. ±8 mm
✅ The correct answer is option C.
Surveying MCQs
Closed contours, with higher value inwards, represent a_______________?
A. depression
B. hillock
C. plain surface
D. none of the above
✅ The correct answer is option B.
For which of the following permanent adjustments of theodolite, the spire test is used ?
A. adjustment of plate levels
B. adjustment of line of sight
C. adjustment of horizontal axis
D. adjustment of altitude bubble and vertical index frame
✅ The correct answer is option C.
Which of the following angles can be set out with the help of French cross staff?
A. 45° only
B. 90° only
C. either 45° or 90°
D. any angle
✅ The correct answer is option C.
Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ?
A. radiation
B. intersection
C. traversing
D. resection
✅ The correct answer is option B.
Which of the following errors can be neutralised by setting the level midway between the two stations ?
A. error due to curvature only
B. error due to refraction only
C. error due to both curvature and re-fraction
D. none of the above
✅ The correct answer is option C.
If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is_____________?
A. 0° 30′
B. 89° 30′
C. 90° 30′
D. 269° 30′
✅ The correct answer is option C.
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?
A. error due to eccentricity of verniers
B. error due to displacement of station signals
C. error due to wrong adjustment of line of collimation and trunnion axis
D. error due to inaccurate graduation
✅ The correct answer is option B.
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?
A. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
B. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
C. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate
✅ The correct answer is option C.
Size of a theodolite is specified by________________?
A. the length of telescope
B. the diameter of vertical circle
C. the diameter of lower plate
D. the diameter of upper plate
✅ The correct answer is option C.