Strength of Materials
In the equation of virtual work, following force is neglected

reaction of a rough surface of a body which rolls on it without slipping
All of the listed here
reaction at a point or an axis, fixed in space, around which a body is con-strained to turn
reaction of any smooth surface with which the body is in contact

ANSWER DOWNLOAD EXAMIANS APP

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

these forces are equal
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

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Kinetic friction is the

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

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
According to principle of transmissibility of forces, the effect of a force upon a body is

Maximum when it acts at the center of gravity of a body
Minimum when it acts at the C.G. of the body
The same at every point in its line of action
Different at different points in its line of action

ANSWER DOWNLOAD EXAMIANS APP