Strength of Materials In ideal machines 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 mechanical advantage is unity ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction along the plane horizontally at an angle equal to the angle of friction to the inclined plane vertically along the plane horizontally at an angle equal to the angle of friction to the inclined plane vertically ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Two coplanar couples having equal and opposite moments Are equivalent Produce a couple and an unbalanced force Balance each other Produce a moment of couple Are equivalent Produce a couple and an unbalanced force Balance each other Produce a moment of couple 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 2n-l 2n-3 n-2 n-l 2n-l 2n-3 n-2 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The coefficient of friction depends on nature of surface strength of surfaces area of contact shape of surfaces nature of surface strength of surfaces area of contact shape of surfaces ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if the floor is rough, the wall is smooth the floor and wall both are smooth surfaces the floor and wall both are rough sur-faces the floor is smooth, the wall is rough the floor is rough, the wall is smooth the floor and wall both are smooth surfaces the floor and wall both are rough sur-faces the floor is smooth, the wall is rough ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS