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Machine Design

Machine Design
A locking device extensively used in automobile industry is a

Castle nut
Jam nut
Sawn nut
Ring nut

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Machine Design
The form factor of a helical gear __________ with the increase in the helix angle.

Increases
Remains constant
None of these
Decreases

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Machine Design
A screw is specified by its

Pitch diameter
Major diameter
Minor diameter
Pitch

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Machine Design
In case of pressure vessels having closed ends, the fluid pressure induces

None of these
Longitudinal stress
Circumferential stress
Shear stress

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Machine Design
The rated life of a bearing varies

Directly as load
Inversely as fourth power of load
Inversely as square of load
Inversely as cube of load

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Machine Design
A hot short metal is

Brittle when hot
Ductile at high temperature
Brittle under all conditions
Brittle when cold

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