Test: Machine Design - 8 - Mechanical Engineering MCQ

Oldham coupling is used to transmit power between two parallel shafts which are slightly offset.

When a machine member is subjected to torsion, the torsional shear stress set up in the member is

Pitch point of a cam is

When two parallel and coplaner shafts are connected by gears having teeth parallel to the axis of the shaft, the arrangement is known as spiral gearing.

A screw is specified by its

The wear load should be __________ the dynamic load.

The velocity factor for ordinary cut gears operating at velocities upto 12.5 m/s is equal to

Antifriction bearings are

Stress concentration factor is defined as the ratio of

The property of a bearing material which has the ability to accomodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

In the levers of __________ type, the mechanical advantage is less than one.

A hollow saddle key is

A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called

Crowning on pulley helps

The temperature required for full annealing in hyper-eutectoid steel is

The effect of key ways on a shaft is to reduce its load carrying capacity and to increase its torsional rigidity.

The efficiency of a riveted joint is equal to

Which of the following welded joint is designed for shear strength ?

In designing a connecting rod, it is considered like __________ for buckling about X-axis.

The material commonly used for crane hooks is

The eye bolts are used for

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