Question Statement:
A four-cylinder four-stroke diesel engine develops a brake power of $36.0\text{ kW}$ at full load. During a Morse test, the brake power outputs obtained by cutting off cylinders 1, 2, 3, and 4 in turn are $25.5\text{ kW}$, $25.0\text{ kW}$, $25.2\text{ kW}$, and $25.3\text{ kW}$ respectively. Calculate the mechanical efficiency of the engine as a percentage (round off to 1 decimal place).