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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
2
43832
1

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Machine Design
The face angle of a bevel gear is equal to

Pitch angle - dedendum angle
Pitch angle - addendum angle
Pitch angle + dedendum angle
Pitch angle + addendum angle

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Machine Design
Which of the following has threads at both ends?

Stud
None of these
Tap bolt
Bolt

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Machine Design
A tube has the following advantage over pipe

Smoother inside walls
All of these
Lighter and easier to handle
Greater shock absorption

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Machine Design
Residual stress in materials

Acts when external load is applied
Becomes zero when external load is removed
Is independent of external loads
Is always harmful

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Machine Design
The contact ratio for gears is

Zero
Less than one
Greater than one
None of these

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