Strength of Materials A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if the floor and wall both are smooth surfaces the floor is smooth, the wall is rough the floor is rough, the wall is smooth the floor and wall both are rough sur-faces the floor and wall both are smooth surfaces the floor is smooth, the wall is rough the floor is rough, the wall is smooth the floor and wall both are rough sur-faces ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is 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 independent of the area of contact surfaces proportional to normal load between the surfaces 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 3 and 1 kg 2 and V6 2 and 5 V5 and V5 3 and 1 kg 2 and V6 2 and 5 V5 and V5 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In actual machines mechanical advantage is unity mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is greater than velocity ratio mechanical advantage is unity mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is greater than 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 metal will float in water density of metal can’t be determined metal is twice as dense as water metal is twice as dense as unknown fluid metal will float in water density of metal can’t be determined metal is twice as dense as water metal is twice as dense as unknown fluid ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials When trying to turn a key into a lock, following is applied moment couple non-coplanar forces coplanar force moment couple non-coplanar forces coplanar force ANSWER DOWNLOAD EXAMIANS APP
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