Question: During a trial on single cylinder four stroke IC engine, the following observations were taken : Mean effective pressure (=4) bar, speed (=200) RPM, Brake

During a trial on single cylinder four stroke IC engine, the following observations were taken : Mean effective pressure $=4$ bar, speed $=200$ RPM, Brake power $=7.5 \mathrm{~kW}, \mathrm{~L} / \mathrm{D}$ ratio of piston $=1.5$. If mechanical efficiency is $70 \%$ find the dimensions of the engine.

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