Fuels And Combustion - Study Mode
[#411] A good coking coal should have high __________ content.
Correct Answer
(D) None of these
[#412] Function of secondary air in pulverised coal firing is to
Correct Answer
(C) Ensure efficient burning of coal around the burner
[#413] 'Mixed gas' used in steel plants is a mixture of
Correct Answer
(A) B.F. gas and coke oven gas
[#414] The calorific value of a gas of composition CO 2 = 20%, H 2 = 50%, CH 4 = 30%, is y. If the composition of gas is changed to H 2 = 50%, CH 4 = 30%, CO 2 = 10%, N 2 = 10%, then the calorific value will be
Correct Answer
(A) y
[#415] Blast furnace coke is made from coal by
Correct Answer
(B) High temperature carbonisation