Theory of machines - Engineering

Q1:

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

A cause withdrawing or throttling of steam

B reduce length of effective stroke of piston

C reduce maximum opening of port to steam

D all of these

ANS:B - reduce length of effective stroke of piston

Explanation: No answer description is available.