Question

With heavy loads, two stroke engines get heated due to excessive heat produced.

(a) True

(b) False

This question was addressed to me by my school principal while I was bunking the class.

Query is from Disadvantages of Two Stroke Engines in section Two Stroke Engines of IC Engine

Answer 1

Answer: (a) True

Explanation: Two-stroke engines tend to get heated more easily under heavy loads because they complete a power cycle in every revolution, which leads to higher combustion frequency. Additionally, the scavenging process, where exhaust gases are removed and fresh air-fuel mixture is introduced, is less efficient in two-stroke engines compared to four-stroke engines. This inefficiency, combined with the lack of dedicated exhaust and intake strokes, means the engine has less time to expel heat, resulting in higher operating temperatures and the risk of overheating under heavy loads.