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
reaction of any smooth surface with which the body is in contact
All of the listed here
reaction at a point or an axis, fixed in space, around which a body is con-strained to turn

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
According to Lami's theorem

Three forces acting at a point can be represented by a triangle, each side being proportional to force
Three forces acting at a point will be in equilibrium
If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Strength of Materials