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Machine Design

Machine Design
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

6
10
4
8

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Machine Design
The washer is generally specified by its

Hole diameter
Thickness
Mean diameter
Outer diameter

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Machine Design
Multiple threads are used to secure

Low efficiency
High mechanical advantage
High load lifting capacity
High efficiency

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Machine Design
The period during which the cam follower remains at rest, when cam moves, is known as

Fixed period
Constant period
Dwell period
Idle period

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Machine Design
The taper on cotter varies from

1 in 32 to 1 in 24
1 in 15 to 1 in 10
1 in 24 to 1 in 20
1 in 48 to 1 in 24

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Increase the key depth
Decrease the key length
Increase the key width
Increase the key length

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