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Machine Design

Machine Design
For steel, the ultimate strength in shear as compared to ultimate strength in tension is

43832
43833
43834
43864

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Machine Design
When spring index increases, the value of Wahl's stress factor

Remains same
Increases linearly
Decreases linearly
Increases exponentially

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Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Coarser
Very fine
Same
Finer

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Machine Design
A universal coupling is used to connect two shafts

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

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Machine Design
The design of the pressure vessel is based on

Hoop stress
Longitudinal and hoop stress
Longitudinal stress
None of these

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Machine Design
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

10
8
6
4

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