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What is the correct answer?
4
The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power)
A.
I.P/B.P.
B.
B.P/I.P.
C.
B.P/F.P.
D.
F.P/B.P.
Correct Answer :
B. B.P/I.P.
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