Strength of Materials
If a number of forces act simultaneously on a particle, it is possible

Not a replace them by a single force
To replace them by a single force through C.G.
To replace them by a couple
To replace them by a single force

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
If a rigid body is in equilibrium under the action of three forces, then

the lines of action of these forces meet in a point & the lines of action of these forces are parallel
the lines of action of these forces meet in a point
the lines of action of these forces are parallel
these forces are equal

ANSWER DOWNLOAD EXAMIANS APP