Question

Pollutants are produced by the incomplete burning of the air-fuel mixture in the combustion chamber.

(a) True

(b) False

I have been asked this question during an interview.

This intriguing question originated from Engine Emissions topic in division Engine Emissions and their Control of IC Engine

Answer 1

The correct answer is:

(a) True

Pollutants such as carbon monoxide (CO), hydrocarbons (HC), and oxides of nitrogen (NOx) are produced due to incomplete burning of the air-fuel mixture in the combustion chamber of an engine. When the combustion process is not fully efficient, some of the fuel does not burn completely, leading to the release of these pollutants.