The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called
A. mechanical efficiency
B. overall efficiency
C. indicated thermal efficiency
D. volumetric efficiency
Answer:A
The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called
A. mechanical efficiency B. overall efficiency C. indicated thermal efficiency D. volumetric efficiency
Explanation: Overall efficiency is the ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time while mechanical efficiency is the ratio of the brake power to the indicated power and relative efficiency is the ratio of the indicated thermal efficiency to the air standard efficiency.