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Machine Design

Machine Design
The stretching in a belt can be controlled by __________ the stress in the belt.

Increasing
Reducing
Both A and B
None of these

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Machine Design
Lewis equation is applied

To weaker of the pinion or gear
Only to the pinion
Only to the gear
To stronger of the pinion or gear

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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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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
A feather key is generally

Loose in shaft and tight in hub
Tight in shaft and loose in hub
Tight in both shaft and hub
Loose in both shaft and hub

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Machine Design
The notch angle of the Izod impact test specimen is

45°
20°
30°
10°

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