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Machine Design

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

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

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Machine Design
The cam follower generally used in automobile engines is

Roller follower
Knife edge follower
Spherical faced follower
Flat faced follower

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Machine Design
The power transmitted by the belt drive can be increased by

All of these
Dressing the belt to increase the coefficient of friction
Increasing wrap angle by using idler pulley
Increasing the initial tension in the belt

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Machine Design
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

Diametral pitch
Axial pitch
Normal pitch
Module

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Inside fiber
Outside fiber
Centroidal axis
Neutral axis

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Decrease the key length
Increase the key length
Increase the key depth
Increase the key width

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