The average exhaust temperature of a two-stroke cycle diesel engine with a turbine-driven supercharger is lower than a similar four-stroke cycle diesel engine at equal loads because __________.

Correct Answer: Option C — two-stroke cycle diesel engines have a lower M.E.P. than four-stroke cycle diesel engines

Two-stroke cycle diesel engines generally exhibit lower Mean Effective Pressure at equivalent loads compared to four-stroke counterparts, resulting in lower thermal loading and correspondingly reduced average exhaust gas temperatures.