Question

A fictitious pressure that, if it acted on the piston during the entire power stroke, would produce the same amount of net work as that produced during the actual cycle is called
1. Quasi equivalent pressure
2. Mean equivalent pressure
3. Mean effective pressure
4. Quasi static pressure

Answer 1

Correct Answer - Option 3 : Mean effective pressure

Concept:

Mean effective pressure is defined as a hypothetical pressure which is thought to be acting on the piston throughout the power stroke, would produce the same amount of net-work as that produce during the actual cycle.

W_net = P_meam × Displacement volume

W_net = P_meam × Piston Area × Stroke