Surveying

A. straightening the links
B. removing one or more small circular rings
C. closing the joints of the rings if opened out
D. all of the above

A. is used at the time of standardising the tape
B. neutralizes the effect due to pull and sag
C. makes the correction due to sag equal to zero
D. makes the correction due to pull equal to zero

A. 1 in 100
B. 1 in 250
C. 1 in 500
D. 1 in 1000

A. 45° only
B. 90° only
C. either 45° or 90°
D. any angle

A. 30°
B. 45°
C. 60°
D. 90°

A. 4 chains
B. 6 chains
C. 120 m
D. 180m

A. 20°
B. 30°
C. 45°
D. 60°

A. degree of accuracy required
B. method of setting out the perpendiculars and nature of ground
C. scale of plotting
D. all of the above

A. method of perpendicular offsets
B. method of oblique offsets
C. method of ties
D. all involve equal measurement on the ground

A. always additive
B. always subtractive
C. always zero
D. sometimes additive and sometimes subtractive