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Machine Design

Machine Design
The contact ratio for gears is

Zero
Greater than one
Less than one
None of these

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Machine Design
The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads.

Four times
Double
Same
Three times

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Machine Design
The suitable material for belt in agricultural machinery is

Rubber
Balata gum
Cotton duck
Leather

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Machine Design
The draw of cotter need not exceed

20 mm
10 mm
5 mm
3 mm

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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
1 Pc
3 Pc
Pc/3

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Machine Design
A locking device extensively used in marine type connecting rod ends is a

Castle nut
Ring nut
Jam nut
Sawn nut

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