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Machine Design

Machine Design
The size of a gear is usually specified by

Pitch circle diameter
Diametral pitch
Pressure angle
Circular pitch

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

Lower
Same
None of these
Higher

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Machine Design
The pipe joint mostly used for pipes carrying water at low pressures is

Union joint
Spigot and socket joint
Socket joint
Nipple joint

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Machine Design
The cross-section of the arm of a bell crank lever is

Rectangular
Any one of these
Elliptical
I-section

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Machine Design
When the screw in a mechanical screw jack rotates, the load kept on the top of it moves

Axially upwards or downwards
Axially downwards
Axially upwards
None of these

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Machine Design
The taper on cotter varies from

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

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