Question: In a Morse test for a 2-cylinder, 2-stroke, spark ignition engine, the brake power was 9 kW. Whereas the brake powers of individual cylinder with

In a Morse test for a 2-cylinder, 2-stroke, spark ignition engine, the brake power was 9 kW. Whereas the brake powers of individual cylinder with spark cut off were 4.25 kW and 3.75 kW, respectively.The mechanical efficiency of the engine is.

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