- (A) Its thorough mixing with air
- (B) Attainment of chemical equilibrium
- (C) Attainment of high temperature
- (D) None of these
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- (A) 70
- (B) 85
- (C) 105
- (D) 145
- (A) CO2
- (B) CH4
- (C) H2
- (D) NH3
- (A) Calorific value increases
- (B) Caking properties diminish
- (C) Swelling during carbonisation becomes excessive
- (D) None of these
- (A) Increase in gas pressure
- (B) Increase in temperature (i.e. preheating)
- (C) Use of pure oxygen for combustion instead of air
- (D) All
- (A) Cyclone separator
- (B) Wet packed scrubber
- (C) Electrostatic precipitator
- (D) Washing with monoethanolamine
- (A) Coal
- (B) Furnace oil
- (C) Natural gas
- (D) Naphtha
- (A) Scale losses of the furnace stock
- (B) Calorific value of the fuel
- (C) Flame temperature
- (D) None of these
- (A) Coke oven gas
- (B) Blast furnace gas
- (C) Natural gas
- (D) None of these
- (A) Lower ignition temperature
- (B) Narrower limit of inflammability
- (C) Higher calorific value
- (D) Lower theoretical flame temperature
