# Civil Engineering - Surveying

Exercise : Surveying - Section 7
31.
If + 0.8% grade meets - 0.7% grade and the rate of change of grade for 30 m distance is 0.05, the length of the vertical curve will be
600 m
700 m
800 m
900 m
1000 m
Explanation:
No answer description is available. Let's discuss.

32.
The included angles of a theodolite traverse, are generally measured
clockwise from the forward station
anti-clockwise from the back station
anti-clockwise from the forward station
clockwise from the back station.
Explanation:
No answer description is available. Let's discuss.

33.
Location of contour gradient for a high way is best set out from
ridge down the hill
bottom to the ridge
Explanation:
No answer description is available. Let's discuss.

34.
If h1 and h2 are the differences in level between ground and the formation levels, m is the slope of the sloping sides. D is the distance between the cross sections then, prismoidal correction for a level section is
D/2m(h1 - h2)
D/3m(h1 - h2)
D/6m(h1 - h2)2
D/6m(h1 - h2)3
D/6m(h1 + h2)2