Strength of Materials
A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal

density of metal can’t be determined
metal is twice as dense as unknown fluid
metal is twice as dense as water
metal will float in water

ANSWER DOWNLOAD EXAMIANS APP

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

reaction of any smooth surface with which the body is in contact
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

ANSWER DOWNLOAD EXAMIANS APP