Question

In CI engine, combustion occurs by the high temperature produced by the compression of the air.

(a) True

(b) False

This question was posed to me in examination.

I need to ask this question from Combustion in C.I. Engine topic in division Combustion and Combustion Chambers of IC Engine

Answer 1

The correct answer is:

(a) True

Explanation: In a Compression Ignition (C.I.) engine, combustion occurs due to the high temperature and pressure generated by the compression of air. During the compression stroke, the air is compressed to a high pressure, which causes its temperature to rise significantly. When fuel is injected into the highly compressed, hot air near the top of the compression stroke, the fuel ignites spontaneously due to the high temperature, without the need for a spark plug. This is the fundamental principle behind C.I. engine operation.