# Civil Engineering - Surveying

Exercise : Surveying - Section 7
41.
The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is
28.8 secs
41.25 secs
14.52 secs
25.05
none of these
Explanation:
No answer description is available. Let's discuss.

42.
If i is the stadia distance, f is the focal length and d is the distance between the objective and vertical axis of the techeometer, the multiplying constant, is
f/i
i/f
(f + d)
f/d.
Explanation:
No answer description is available. Let's discuss.

43.
The back staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a point is 1.345 m, the reduced level of the point, is
502.685 m
501.345 m
501.340 m
504.030 m
502.585 m.
Explanation:
No answer description is available. Let's discuss.

44.
It is more difficult to obtain good results while measuringhorizontal distance by stepping
up-hill
down-hill
in low undulations
in plane areas.