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

Remain unaffected
Decreases
Increases
First increases and then decreases

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Theory of Machine
In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will

All of these
Reduce length of effective stroke of piston
Reduce maximum opening of port to steam
Cause withdrawing or throttling of steam

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