Machine Design MCQ with Answers

206) 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

Answer is:

comformability

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

Answer is:

third

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

208) A hollow saddle key is

Answer is:

a taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft

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

Answer is:

malleability

Explanation:

Malleability is a property of a material enabling it to be drawn into thin sheets.
Ductility is a property of a material enabling it to be drawn into wires.

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

210) Crowning on pulley helps

Answer is:

206) 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

comformability

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

third

208) A hollow saddle key is

a taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft

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

malleability

210) Crowning on pulley helps

to keep the belt in centre on a pulley while it is in motion