Category: SURVEYING Questions

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
Ans: b

a) cross staff
b) level
c) chain
d) prismatic compass
Ans: d

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
Ans: d

a) line ranger
b) steel tape
c) optical square
d) cross staff
Ans: a

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
Ans: d

a) increase
b) decrease
c) not change
d) either ‘a’ or ‘b’
Ans: a