Surveying - Engineering

Q1:

The magnetic meridian at any point, is the direction indicated by a freely suspended

A magnetic needle

B and properly balanced magnetic needle

C properly balanced and uninfluenced by local attractive force

D magnetic needle over an iron pivot.

ANS:C - properly balanced and uninfluenced by local attractive force

The given answer is totally wrong. It is not even possible practically.

Magnetic meridian is the direction which is indicated by a freely suspended magnetic needle.  Magnetic meridian is the meridian which is affected by local attractive forces.