Question

the forces whose line of action passes through a common point are know as

Answer 1

Concurrent force is the only force whose line of action passes through the common point.

Answer 2

Concurrent co-planar forces, the lines of action interact at a common point but not necessarily are in contact with the common point. These are the most simple force systems.

All the forces in a co-planar system acts in one plane. They can be concurrent or non-concurrent , parallel or non-parallel.