1000+ Fuels and Combustion MCQ Questions and Answers - 2

Question: 6

Fossil fuels means

(A) pemature fuels with low calorific value

(B) those fuels which are found in the crust of earth

(C) solid fuels

(D) liquid fuels

Question: 7

An example of a periodic furnace is the

(A) rotary kilns

(B) coke oven heating chamber

(C) blast furnaces

(D) blast furnace stoves

Question: 8

Which of the following will not conserve energy in a furnace?

(A) addition of more burners

(B) preheating of combustion air

(C) preheating of stock/charge

(D) minimising excess air

Question: 9

In order to maintain an oxidising atmosphere in a furnace, it should have

(A) more of CO₂ in flue gas

(B) more of CO in flue gas

(C) less of excess air

(D) more of excess air

Question: 10

Which of the following releases the maximum energy per kg on complete combustion?

(A) sulphur

(B) hydrogen

(C) magnesium

(D) carbon