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Machine Design

Machine Design
According to I.B.R., the thickness of the boiler shell should not be less than

6 mm
5 mm
7 mm
4 mm

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Machine Design
The design calculations for members subject to fluctuating loads with the same factor of safety, yield the most conservative estimates when using

None of these
Soderberg relation
Goodman relation
Gerber relation

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Machine Design
The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.

None of these
More than
Less than
Equal to

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Machine Design
A key capable of tilting in a recess milled out in a shaft is known as

Flat saddle key
Feather key
Hollow saddle key
Woodruff key

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Machine Design
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.

Medium
None of these
Smaller
Greater

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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
Greater than unity
Equal to 1
Less than unity

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