1000+ Fuels and Combustion Objective Type Questions and Answers - 1

Question: 1

Which of the following is the maximum coal producing state in India?

(A) Assam

(B) Jharkhand

(C) West Bengal

(D) Orissa

Question: 2

Which of the following is not a manufactured fuel?

(A) charcoal

(B) colloidal fuels

(C) soft coke

(D) coke breeze

Question: 3

The function of an economizer in a boiler is to preheat the

(A) furnace oil

(B) pulverised coal

(C) combustion air

(D) feedwater

Question: 4

Oxygen enrichment of combustion air does not result in increase of the

(A) heat transfer rate in the furnace

(B) stack loss

(C) oxygen in the flue gas

(D) flame temperature

Question: 5

Which of the following has the highest flame velocity?

(A) C^2H₆

(B) CH₄

(C) CO

(D) H₂