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Machine Design

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

Finer
Same
Coarser
Very fine

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Machine Design
The shear stress in a beam varies from zero at the outer fibers to a maximum at the________.

Upper surface
Neutral surface
None of these
Lower surface

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Machine Design
Auto frettage is the method of

Pre-stressing thick cylinders
Joining thick cylinders
Calculating stresses in thick cylinders
Increasing the life of thick cylinders

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Machine Design
The V-belts are particularly suitable for __________ drives.

Short
Long
None of these
Both A and B

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Machine Design
Oil in journal bearing should be applied at the point where load is

Average
Nil or lightest
Any one of the above
Maximum

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Machine Design
The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Safety
Fullering and caulking
Reducing stress concentration
Ease of manufacture

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