100 bar

150 bar

200 bar

250 bar

0.5 to 1 m

1 to 2 m

1.25 to 2.5 m

2 to 3 m

equal

half

double

four times

equal to

less than

higher than

none of these

to convert reciprocating motion of the piston into rotary motion.

to convert rotary motion of the crankshaft into to and fro motion of the valve rod

to prevent fluctuation of speed

to keep the engine speed uniform at all load conditions