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Civil Engineering - Surveying

Exercise : Surveying - Section 3
6.
Prismatic compass is considered more accurate than a surveyor's compass, because
it is provided with a better magnetic needle
it is provided with a sliding glass in the object vane
its graduations are in whole circle bearings
it is provided with a prism to facilitate reading of its graduated circle
both (c) and (d).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
In reciprocal levelling, the error which is not completely eliminated, is due to
earth's curvature
non-adjustment of line of collimation
refraction
non-adjustment of the bubble tube.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to
ease of reduction of observations
facility of holding
minimum effect of careless holding on the result
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Removal of parallax, may be achieved by focussing
the objective
the eye-piece
the objective and the eye-piece
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Pick up the correct statement from the following :
A level surface is perpendicular at all points to the direction of gravity
A level line lies in level surface
A horizontal surface is normal to the direction of gravity at only one point
A horizontal line is tangential to the level surface
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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