Question

Why is it necessary to use noncandescent materials in place of coal storage area?

(a) To avoid it from catching fire

(b) To act as a fire resistor during the cause of fire

(c) To avoid it from acting as a supporter of fire

(d) To provide a cool environment

I have been asked this question in an interview for internship.

This intriguing question originated from Fuel Handling System, Storage of Coal topic in portion Steam Power Plant of Energy Engineering

Answer 1

The correct answer is (a) To avoid it from catching fire

Best explanation: Coal is susceptible to spontaneous combustion due to heating during natural oxidation of new coal surfaces. Second, coal dust is highly combustible and explosion hazard. If a coal dust cloud is generated inside an enclosed space, and an ignition source is present, an explosion can ensure.