If an engine develops 100 indicated HP, the brake HP will be about:
A) 85 HP
B) 90 HP
C) 95 HP
D) 100 HP

Question

Quizplus · Accepted Answer

The brake horsepower (BHP) is the actual power output of the engine measured on a dynamometer. The indicated horsepower (IHP) is the power produced by the engine's cylinders alone, and doesn't account for frictional losses and other inefficiencies. Typically, the BHP is about 85-90% of the IHP, so in this case, the BHP would be about 90 HP.

If an Engine Develops 100 Indicated HP, the Brake HP