Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is independent of the area of contact surfaces proportional to normal load between the surfaces dependent on the materials of contact surface proportional to velocity of sliding independent of the area of contact surfaces proportional to normal load between the surfaces dependent on the materials of contact surface proportional to velocity of sliding ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The weight of a body is due to gravitational pull exerted by the earth gravitational force of attraction towards the centre of the earth. force of attraction experienced by par-ticles centripetal force of earth gravitational pull exerted by the earth gravitational force of attraction towards the centre of the earth. force of attraction experienced by par-ticles centripetal force of earth ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In actual machines mechanical advantage is greater than velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity mechanical advantage is equal to velocity ratio mechanical advantage is greater than velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity mechanical advantage is equal to velocity ratio ANSWER DOWNLOAD EXAMIANS APP
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 will float in water metal is twice as dense as water metal is twice as dense as unknown fluid density of metal can’t be determined metal will float in water metal is twice as dense as water metal is twice as dense as unknown fluid ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) n-l n-2 2n-l 2n-3 n-l n-2 2n-l 2n-3 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are V5 and V5 2 and 5 2 and V6 3 and 1 kg V5 and V5 2 and 5 2 and V6 3 and 1 kg ANSWER DOWNLOAD EXAMIANS APP
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