A certain engine produces 10 kW indicated power. Its mechanical effici – McqOptions

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1.	A certain engine produces 10 kW indicated power. Its mechanical efficiency is 70%. Then the frictional power is
A.	2 kW
B.	2.5 kW
C.	3 kW
D.	3.5 kW
Answer» D. 3.5 kW

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A certain engine produces 10 kW indicated power. Its mechanical efficiency is 70%. Then the frictional power is