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

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

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Limiting force of friction is the

Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction
Ratio of limiting friction and normal reaction
the friction force acting when the body is in motion
The friction force acting when the body is just about to move

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Center of percussion is

the point of metacentre
point of suspension
the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
the point of C.G.

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
In ideal machines

mechanical advantage is less than velocity ratio
mechanical advantage is equal to velocity ratio
mechanical advantage is greater than velocity ratio
mechanical advantage is unity

ANSWER DOWNLOAD EXAMIANS APP