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Machine Design

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

None of these
Greater
Medium
Smaller

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Machine Design
The belt slip occurs due to

Heavy load
Driving pulley too small
Any one of the above
Loose belt

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Machine Design
In designing a key, it is assumed that the distribution of forces along the length of key

Varies exponentially, being less at the torque-input end
Varies exponentially, being more at the torque-input end
Is uniform throughout
Varies linearly

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Machine Design
In a marine flange coupling, the thickness of flange is taken as

3d/4
d/4
d/2
d/3

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

15-30 m/s
1-3 m/s
3-15 m/s
30-50 m/s

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Machine Design
The centrifugal tension in belts

Increase the wrap angle
Decreases the power transmitted
Increases the belt tension without increasing power transmission
Increases the power transmitted

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