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Machine Design

Machine Design
The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is

4
1
2
43832

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Machine Design
The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to

3/(3 + v)
0.75/(0.75 + √v)
6/(6 + v)
4.5/(4.5 + v)

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Machine Design
A saddle key __________ power through frictional resistance only.

Does not transmit
Either A or B
None of these
Transmits

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Machine Design
A flange coupling is used to connect two shafts

Which are not in exact alignment
Have lateral misalignment
Which are perfectly aligned
Whose axes intersect at a small angle

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Machine Design
In radial bearings, the load acts __________ to the axis of rotation.

None of these
Parallel
Perpendicular
Both A and B

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Flat saddle key
Feather key
Gib head key
Woodruff key

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