The mechanical efficiency (ηm) of the engine is given by – McqOptions

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1.	The mechanical efficiency (ηm) of the engine is given by
A.	ηm = B.P/I.P
B.	ηm = I.P/B.P
C.	ηm = (B.P × I.P)/100
D.	none of these
Answer» B. ηm = I.P/B.P

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