- (A) Deoxidation
- (B) Gasification
- (C) Coalification
- (D) Carbonisation
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- (A) Coke oven gas
- (B) Water gas
- (C) Natural gas
- (D) Blast furnace gas
- (A) Low fusion point of ash
- (B) High ash content
- (C) High sulphur
- (D) None of these
- (A) 80 and 97
- (B) 95 and 100
- (C) 40 and 70
- (D) 25 and 97
- (A) Thickness of plastic layer
- (B) Caking index
- (C) Swelling index
- (D) Gray-king index
- (A) 2CO ↔ C + CO2
- (B) CO + H2O ↔ CO2 + H2
- (C) C + H2O ↔ CO + H2
- (D) C + 2H2O ↔ CO2 + 2H2
- (A) 1,800
- (B) 3,200
- (C) 5,400
- (D) 10,200
- (A) Higher calorific value at constant volume
- (B) Gross calorific value at constant pressure
- (C) Lower calorific value at constant pressure
- (D) Net calorific value at constant volume
- (A) Silica gel
- (B) Diatomaceous earth
- (C) Basalt
- (D) Bog iron (i.
- (E) , moist ferric hydroxide)
- (A) Coal
- (B) Kerosene
- (C) Natural gas
- (D) Furnace oil
