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Machine Design

Machine Design
The most important dimension in the design of a nut is

Inside diameter
Height
Outside diameter
Pitch diameter

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Machine Design
In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to

1.75 d
1.5 d
1.25 d
1 d

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Machine Design
If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio

None of these
Increases
Decreases
Remains unchanged

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Machine Design
In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane.

None of these
Twice
Thrice
Half

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Machine Design
Failure of a material is called fatigue when it fails

At the yield point
Below the elastic limit
At the elastic limit
Below the yield point

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Machine Design
When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the

Middle
Shank
Thread
Head

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