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

Strength of Materials
The weight of a body is due to

force of attraction experienced by par-ticles
gravitational pull exerted by the earth
centripetal force of earth
gravitational force of attraction towards the centre of the earth.

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

slant down towards direction of pull
unpredictable
slant up towards direction of pull
remain horizontal

ANSWER DOWNLOAD EXAMIANS APP