Question: A six cylinder four stroke I.C. engine is to develop (100 mathrm{~kW}) IP at (800 mathrm{rpm}). The stroke to bore ratio is 1.25 . Assuming

A six cylinder four stroke I.C. engine is to develop $100 \mathrm{~kW}$ IP at $800 \mathrm{rpm}$. The stroke to bore ratio is 1.25 . Assuming mechanical efficiency of $80 \%$ and brake mean effective pressure of $5 \mathrm{bar}$, find out the diameter and stroke of the engine.

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