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Machine Design

Machine Design
The groove angle of pulleys for V-belt is

420 to 450
340 to 360
300 to 320
More than 400

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Machine Design
The permissible stress for carbon steel under static loading is generally taken as

3000-4000 kg/cm²
2000-3000 kg/m²
4000-4500 kg/cm²
7500-10,000 kg/cm²

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

Twice
Half
Thrice
None of these

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Machine Design
The size of a gear is usually specified by

Diametral pitch
Circular pitch
Pitch circle diameter
Pressure angle

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Machine Design
The belt slip occurs due to

Loose belt
Heavy load
Driving pulley too small
Any one of the above

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Machine Design
The backlash for spur gears depends upon

Module
Pitch line velocity
Tooth profile
Both module and pitch line velocity

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