Question

Major source of heat in underground coal mines is

• A. From lights
• B. From rock movement
• C. Due to oxidation
• D. From machinery

Hint:

Oxidation in coal mines can lead to spontaneous combustion, making proper ventilation and monitoring critical for safety.

Answer 1

The Correct Option is C

In underground coal mines, the major source of heat is due to oxidation, particularly the spontaneous combustion of coal when exposed to oxygen. This process releases heat as coal reacts chemically with oxygen, often leading to a rise in temperature. While lights, rock movement, and machinery can contribute to heat, they are not the primary sources. Oxidation, especially in coal seams, is a well-documented phenomenon in mine safety studies and can even lead to fires if not managed properly. Thus, the correct answer is Due to oxidation.