Strength of Materials
In actual machines

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

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Kinetic friction is the

Ratio of limiting friction and normal reaction
The friction force acting when the body is in motion
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

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
The weight of a body is due to

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

ANSWER DOWNLOAD EXAMIANS APP