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Machine Design

Machine Design
The efficiency of a riveted joint is equal to

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

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Machine Design
The product of the diametral pitch and circular pitch is equal to

1
π
1/π
π × number of teeth

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Machine Design
Which of the following is a permanent fastening?

Bolts
Keys
Rivets
Cotters

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Machine Design
Deep groove ball bearings are used for

Small angular displacement of shafts
Heavy thrust load only
Combined thrust and radial loads at high speed
Radial load at high speed

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Machine Design
The coefficient of friction in belt drive depends upon

Materials of belt and pulley
Material of pulley
Material of belt
Belt velocity

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Machine Design
The ratio of driving tensions in V-belt drives is __________ flat belt drives.

Equal to
sin α times more than
cosec α times more than
sin α times less than

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