Examveda
Examveda

Triangulation surveys are carried out for locating

A. Control points for surveys of large areas

B. Control points for photogrammetric surveys

C. Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc.

D. All the above

Answer: Option D

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Spring tides are caused when

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B. Solar tidal force acts opposite to lunar tidal force

C. Solar tidal force and lunar tidal force both coincide

D. None of these