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Machine Design

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

None of these
More than
Equal to
Less than

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Machine Design
A screw is said to be a self locking screw, if its efficiency is

More than 50%
Equal to 50%
Less than 50%
None of these

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Machine Design
A leaf spring in automobiles is used

To store strain energy
To apply forces
To measure forces
To absorb shocks

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Machine Design
For general industrial machinery, the ratio of the length of journal to its diameter is taken as

5 to 10
0.5 to 1
1 to 2
3 to 5

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Machine Design
The design of the pressure vessel is based on

None of these
Longitudinal stress
Hoop stress
Longitudinal and hoop stress

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Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

None of these
Pitch lead angle
Helix angle
Pressure angle

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