Survey is Preferred With True Meridian Because

Answer: Option C. True meridian remains constant

Survey is preferred with true meridian because true meridian remains constant.

Solution

Magnetic Meridian: Vertical plane that passes through magnetic north and magnetic south is defined as Magnetic Meridian. Magnetic Meridian of a particular place changes with time. True Meridian: A plane passing through the geographical north pole and the geographical south pole is defined as true meridian.

Features of True Meridian:

1. True Meridian converges to a point at the pole.
2. At a particular place, the true meridian remains constant.

Survey is preferred with true meridian because the true meridian remains constant with time.

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