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Machine Design

Machine Design
A screw is specified by its

Major diameter
Minor diameter
Pitch
Pitch diameter

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Machine Design
Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Twice
Sixteen times
Eight times
Four times

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Machine Design
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

None of these
Fully
Partially
Either A or B

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Machine Design
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

None of these
Soft key
Hollow key
Hollow saddle key

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Machine Design
When compared to the rod of the same diameter and material, a wire rope

Does not provide much warning before failure
Is less flexible
Provides much greater time for remedial action before failure
Has a much smaller load carrying capacity

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Machine Design
A shaft is subjected to

Bending stresses
Combined bending and shear stresses
Shear stresses
All of these

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