Surveying - Interview Questions | Exam2Win

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26. Which of the following methods of offsets involves less measurement on the ground?

A. method of perpendicular offsets

B. method of oblique offsets

C. method of ties

D. all involve equal measurement on the ground

Explanation:

27. A telescope is said to be inverted if its

A. vertical circle is to its right and the bubble of the telescope is down

B. vertical circle is to its right and the bubble of the telescope is up

C. vertical circle is to its left and the bubble of the telescope is down

D. vertical circle is to its left and the bubble of the telescope is up

Explanation:

28. 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

Explanation:

29. The rise and fall method of levelling provides a complete check on

A. backsight

B. intermediate sight

C. foresight

D. all of the above

Explanation:

30. The adjustment of horizontal cross hair is required particularly when the instrument is used for

A. leveling

B. prolonging a straight line

C. measurement of horizontal angles

D. all of the above

Explanation: