Machine Design
The cam follower generally used in automobile engines is

Flat faced follower
Spherical faced follower
Knife edge follower
Roller follower

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Machine Design
When the belt is transmitting maximum power,

The tension in slack side is equal to the centrifugal tension
The tension in tight side is twice the centrifugal tension
The tension in tight side is thrice the centrifugal tension
None of these

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