Question

Where exactly are mechanical stokers used?

(a) In transportation of fuels

(b) In small capacity plants

(c) In large capacity plants

(d) For domestic usage

The question was posed to me during a job interview.

My enquiry is from Fuel Burning in section Steam Power Plant of Energy Engineering

Answer 1

Correct answer is (c) In large capacity plants

To explain: Mechanical stokers are usually used in large and medium capacity plants. Mechanical stokers are used to fire almost all kinds of coal. This produces less smoke than hand firing. A stoker consists of a power feeding machine and a grate.