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Machine Design

Machine Design
The stress in the threaded part of the bolt will be __________ as compared to the shank.

Higher
Same
Lower
None of these

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Machine Design
A riveted joint is a __________ fastening.

Temporary
Either A or B
None of these
Permanent

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Machine Design
The belt slip occurs due to

Heavy load
Loose belt
Driving pulley too small
Any one of the above

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Machine Design
If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited

Square
BSW
Buttress
Acme

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Machine Design
When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be

6F/ πd²
4F/ πd²
16F/ 3πd²
8F/ πd²

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Machine Design
The contact ratio for gears is

Less than one
None of these
Greater than one
Zero

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