Surveying

A. completely eliminates curvature correction
B. partially eliminates curvature correction
C. adds to the curvature correction
D. has no effect on curvature correction

A. 98.70
B. 100.00
C. 102.30
D. 103.30

A. 99.345 m
B. 100.345 m
C. 100.655m
D. 101.870m

A. foresight only
B. backsight only
C. foresight and backsight
D. foresight and intermediate sight

A. error due to imperfect graduations
B. error due to eccentricity of verniers
C. error due to imperfect adjustment of plate levels
D. error due to line of collimation not being perpendicular to horizontal axis

1. altitude bubble on index frame
2. altitude bubble on index frame if it is to be used as a level
3. altitude bubble on telescope
4. altitude bubble on telescope if it is to be used as a level
The correct answer is?

A. only (1)
B. both (1) and (4)
C. only (3)
D. both (2) and (3)

A. tightening the capstan-headed nuts of level tube
B. measurement of horizontal angles only
C. measurement of vertical angles only
D. measurement of both horizontal and vertical angles

A. error due to horizontal axis not being perpendicular to the vertical axis
B. index error i.e. error due to imperfect adjustment of the vertical circle vernier
C. error due to non-parallelism of the axis of telescope level and line of collimation
D. none of the above

A. equal to true error
B. half the true error
C. two times the true error
D. four times the true error

A. increase
B. decrease
C. not change
D. either ‘a’ or ‘b’