The mechanical efficiency of a single-cylinder, four-stroke engine is – McqOptions

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1.	The mechanical efficiency of a single-cylinder, four-stroke engine is 90%. The frictional power is 30 kW. What will be the brake power developed by the engine?
A.	240 kW
B.	270 kW
C.	300 kW
D.	330 kW
Answer» C. 300 kW

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