Engine cycles (A-level only)

Indicated power as $(\mathit{area\ of}\ p–V\ \mathit{loop})\times(\mathit{no.\ of\ cycles\ per\ second})\times(\mathit{no.\ of\ cylinders})$

Output or brake power, $P = T\omega$

Engine efficiency; overall, thermal and mechanical efficiencies.

A knowledge of engine constructional details is not required.

Questions may be set on other cycles, but they will be interpretative and all essential information will be given.