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Machine Design

Machine Design
The yield point in static loading is __________ as compared to fatigue loading.

None of these
Lower
Same
Higher

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Machine Design
The helix angle for double helical gears may be made up to

90°
60°
45°
75°

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Machine Design
The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

2εc + εl
εc + εl²
εc² + εl
εc + 2εl

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that the

Difference between the actual size and basic size is 100 mm
Basic size is 100 mm
None of these
Actual size is 100 mm

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about X-axis.

Both ends hinged
Both ends fixed
One end fixed and the other end free
One end fixed and the other end hinged

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Machine Design
Residual stress in materials

Is independent of external loads
Acts when external load is applied
Becomes zero when external load is removed
Is always harmful

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