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

First increases and then decreases
Remain unaffected
Increases
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

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

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