If L is the stroke and N is the rpm, mean piston speed of two-stroke engine
A)LN
B)LN/2
C)2LN
D)none of the above

Question

Quizplus · Accepted Answer

In a two-stroke engine, the piston completes a power cycle with every crankshaft revolution, which means there is one power stroke per revolution. Therefore, the mean piston speed is given by $2LN$, where $L$ is the stroke length in meters and $N$ is the engine speed in revolutions per minute (rpm). This accounts for the piston moving up and then down during each cycle.

If L Is the Stroke and N Is the Rpm