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Machine Design

Machine Design
When a close coiled helical spring is compressed, its wire is subjected to

Shear
All of these
Tension
Compression

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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,

Soft key
None of these
Hollow key
Hollow saddle key

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Machine Design
In a marine flange coupling, the pitch circle diameter of bolts is taken as

1.6 d
2.5 d
2 d
1.2 d

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Machine Design
The material used for brake lining should have __________ coefficient of friction.

None of these
High
Moderate
Low

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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.

Eight times
Four times
Sixteen times
Twice

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Machine Design
Rankine's theory is used for

Elastic materials
Plastic materials
Ductile materials
Brittle materials

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