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Machine Design

Machine Design
The wear load should be __________ the dynamic load.

Less than
Equal to
Greater than
None of these

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Machine Design
The included angle for the V-belt is usually

10°-20°
40°-60°
30°-40°
60°-80°

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Machine Design
For tight leakage joints, following type of thread is best suited

Metric
Buttress
Square
NPT (national pipe threads).

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Machine Design
The groove angle of the pulley for rope drive is usually

45°
20°
60°
35°

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Machine Design
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)

p = D sin (180°/T)
p = D sin (360°/T)
p = D sin (120°/T)
p = D sin (90°/T)

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

Higher
Same
Lower
None of these

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