Civil Engineering - Surveying - Discussion

1. 

Pick up the correct statement from the following :

[A]. The directions of plumb lines suspended at different points in a survey are not strictly parallel
[B]. In surveys of small extent, the effect of curvature may be ignored and the level surface of the earth is assumed as horizontal
[C]. In surveys of large extent, the effect of curvature of the earth must be considered
[D]. All the above.

Answer: Option D

Explanation:

No answer description available for this question.

Vaish said: (Feb 27, 2019)  
How option A is true? Please explain.

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