Theory of Machine
When the sleeve of a Porter governor moves upwards, the governor speed

Remain unaffected
Decreases
First increases and then decreases
Increases

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Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

All of these
The friction force is independent of me area of contact.
The friction force is dependent on the materials of the contact surfaces.
The friction force is directly proportional to the normal force.

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