Fuels And Combustion - Study Mode

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[#291] Quantity of coke produced from metallurgical coal may be around __________ percent.

(A) 30

(B) 50

(C) 75

(D) 95

Correct Answer

(C) 75

[#292] Abrasion index of blast furnace coke should be around __________ percent.

(A) 20

(B) 35

(C) 55

(D) 80

Correct Answer

(D) 80

[#293] Which of the following is not a binder for coal briquetting?

(A) Coal tar

(B) Bitumen

(C) Molasses

(D) None of these

Correct Answer

(D) None of these

[#294] Natural draught produced by a chimney depends upon the

(A) Density of the chimney gases

(B) Height of the chimney

(C) Both A & B

(D) Neither A nor B

Correct Answer

(C) Both A & B

[#295] Caking index of coal blend used for blast furnace coke making is about

(A) 8

(B) 12

(C) 22

(D) 36

Correct Answer

(C) 22