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Machine Design

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

Stud
Tap bolt
Bolt
None of these

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Machine Design
Stress concentration factor is defined as the ratio of

Nominal stress to the maximum stress
Nominal stress to the endurance limit
Maximum stress to the nominal stress
Maximum stress to the endurance limit

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Machine Design
The cross-section of the arm of a bell crank lever is

I-section
Elliptical
Any one of these
Rectangular

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Increase the key depth
Decrease the key length
Increase the key length
Increase the key width

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Machine Design
The property of a bearing material which has the ability to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

Fatigue strength
Embeddability
Comformability
Bondability

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Machine Design
The power transmitted by belt drive depends upon

Belt velocity
All of these
Arc of contact
Initial belt tension

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