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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Nickel and chromium
Cobalt and molybdenum
Chromium
Nickel

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Machine Design
When a helical compression spring is cut into halves, the stiffness of the resulting spring will be

Same
One-fourth
Double
One-half

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Machine Design
A riveted joint is a __________ fastening.

Permanent
None of these
Temporary
Either A or B

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Machine Design
The static tooth load should be __________ the dynamic load.

Less than
Equal to
Greater than
None of these

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Machine Design
Yield point in fatigue loading as compared to static loading is

Same
Lower
Depends on other factors
Higher

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Machine Design
The form factor of a helical gear __________ with the increase in the helix angle.

Remains constant
Decreases
Increases
None of these

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