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Machine Design

Machine Design
In a flange coupling, the flanges are coupled together by means of

Headless taper bolts
Studs
Bolts and nuts
None of these

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Machine Design
For maximum power, the velocity of the belt will be

None of these
√(T/m)
√(T/3m)
√(T/2m)

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Machine Design
For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is

1/sinθ
1/cosθ
1/tanθ
sinθ cosθ

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Machine Design
Factor of safety for fatigue loading is the ratio of

Elastic limit to the yield point
Endurance limit to the working stress
Young's modulus to the ultimate tensile strength
Elastic limit to the working stress

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Machine Design
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

d/2
d/6
d/4
d/8

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Machine Design
The stretching in a belt can be controlled by __________ the stress in the belt.

None of these
Reducing
Increasing
Both A and B

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