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Machine Design

Machine Design
In order to permit the thermal expansion/contraction of tubing, it should be

Honed
Crimped
Bent
Flared

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Machine Design
Which of the following is a permanent fastening?

Rivets
Cotters
Bolts
Keys

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Machine Design
For crank shaft bearings, the ratio of the length of the journal to its diameter is_________.

None of these
Less than unity
Equal to 1
Greater than unity

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Machine Design
According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be

63 to 70%
45 to 60%
80 to 90%
70 to 83%

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

At
Above
Below
None of these

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Machine Design
The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

None of these
Increases
Decreases
Remain same

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