Theory of Machine
Coriolis component acts

Perpendicular to sliding surfaces
None of these
Somewhere in between above two
Along sliding surfaces

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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

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

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