Question

Gas temperature remains at a higher average with increased speed.

(a) True

(b) False

I got this question in an interview for internship.

My question comes from Engine Heat Transfer topic in section Heat Rejection and Cooling of IC Engine

Answer 1

The correct answer is:

(a) True

As engine speed increases, the power output and combustion rates typically rise, which generates more heat. This leads to higher gas temperatures, especially in the combustion chamber, as the engine operates more intensely. Therefore, at higher speeds, the average gas temperature remains elevated, making effective heat rejection more critical.