- (A) Incomplete combustion
- (B) Dry gas/stack gas loss
- (C) Moisture loss
- (D) All
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- (A) Fixed carbon
- (B) Volatile matter
- (C) Ash
- (D) Oxygen
- (A) Blast furnace gas
- (B) Natural gas
- (C) Producer gas
- (D) Water gas
- (A) Produces more slag when used in the blast furnace
- (B) Has poor strength and abrasion resistance
- (C) Is desirable in producer gas manufacture
- (D) None of these
- (A) Caking power
- (B) Calorific value
- (C) Hydrogen content
- (D) Oxygen content
- (A) Contains more than 90% durain
- (B) Contains more than 90% fussain
- (C) Contains mainly vitrain & clarain and is generally coking
- (D) Is non-coking
- (A) 1 to 2
- (B) 3 to 4
- (C) 5 to 15
- (D) 20 to 40
- (A) Require smaller combustion chamber
- (B) Have high calorific value
- (C) Have high adiabatic flame temperature
- (D) None of these
- (A) Ash fusion temperature
- (B) Calorific value
- (C) Ignition temperature
- (D) Caking index
- (A) Transport the coal to the burner
- (B) Dry the coal
- (C) Ensure efficient burning of coal around the burner
- (D) Reduce primary air requirement
