Bulk density of pulverised coal may be about ______________ kg/m3?
Bulk density of pulverised coal may be about ______________ kg/m3?
A. 100
B. 500
C. 1000
D. 1500
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Percentage of methane in coke oven gas may be around _____________________?
Percentage of methane in coke oven gas may be around _____________________?A. 5
B. 15
C. 25
D. 50Coal containing large quantity of _______________ are difficult to wash?
Coal containing large quantity of _______________ are difficult to wash?A. Ash
B. Inherent mineral matter
C. Free impurities
D. Volatile matterThe calorific value is the highest out of the following for__________________?
The calorific value is the highest out of the following for__________________?A. Producer gas
B. Water gas
C. Coke oven gas
D. Blast furnace gasWashing of coal _________________?
Washing of coal _________________?A. Reduces its ash & sulphur content
B. Improves its coking properties
C. Increase the fusion point of its ash by removing chlorine compounds
D. All A., B. and C.Critical Air Blast (CAB) value of coke is a direct measure of its__________________?
Critical Air Blast (CAB) value of coke is a direct measure of its__________________?A. Reactivity
B. Hardness
C. Strength
D. None of theseWhich of the following is a poisonous fuel gas ?
Which of the following is a poisonous fuel gas ?A. Coke oven gas
B. Blast furnace gas
C. Natural gas
D. None of these