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Machine Design

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

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

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Machine Design
The efficiency of a riveted joint is equal to

Least of Pt, Ps and Pc/P
Pc /P
Ps /P
Pt /P

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Machine Design
The rated life of a bearing varies

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

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Machine Design
Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material.

None of these
Elastic strength
Yield strength
Shear strength

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Machine Design
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.

None of these
Smaller
Medium
Greater

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Machine Design
Gears are casted by

Centrifugal casting
Sand mould casting
Slush casting
Permanent mould casting

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