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Machine Design

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

Same
Finer
Coarser
Very fine

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Machine Design
If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to

0.6
0.5
0.25
0.2

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Machine Design
The radial distance from the __________ to the clearance circle is called working depth.

None of these
Dedendum circle
Pitch circle
Addendum circle

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Machine Design
Guest's theory is used for

Ductile materials
Elastic materials
Plastic materials
Brittle materials

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force)

2 Pc
Pc/3
3 Pc
1 Pc

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Machine Design
Buttress threads are usually found on

Feed mechanisms
Screw cutting lathes
Railway carriage couplings
Spindles of bench vices

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