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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
1
2
43832

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Machine Design
A screw is said to be over hauling screw, if the

Efficiency of screw is 100%
Friction angle is more than helix angle
Friction angle is equal to helix angle
Friction angle is less than helix angle

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Machine Design
Which one of the following is a positive drive?

Crossed flat belt drive
Chain drive
Rope drive
V-belt drive

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Machine Design
Stress concentration factor is defined as the ratio of

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

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Machine Design
The resultant axial load on a bolt depends on

Relative elastic yielding (springness) of the bolt and the connected member
All of these
Initial tension
External load applied

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Machine Design
In helical bevel gearing, the axes of shafts are __________ and the teeth are curved.

Intersecting
Non-intersecting and non-parallel
Intersecting and non-parallel
None of these

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