Machine Design MCQs

The ball bearings are provided with a cage

The maximum bending stress in a curved beam having symmetrical section always occur at the

The toughness of a material _________ when it is heated

The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to

In skew bevel gearing, the axes of shafts are

The modulus of elasticity for mild steel is approximately equal to

Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to

The shock absorbing capacity of a bolt may be increased by