- (A) Higher than
- (B) Lower than
- (C) Same as
- (D) None of these
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- (A) More
- (B) Less
- (C) Equal
- (D) More or less; (depends on the state of fuel.)
- (A) Heat losses
- (B) Long flame
- (C) Condensation of water vapour from the fuel gas
- (D) None of these
- (A) Requirement of large volume combustion chamber
- (B) Risk of explosion
- (C) Chances of clinker formation
- (D) Incomplete combustion of coal
- (A) Coke oven gas
- (B) Water gas
- (C) Natural gas
- (D) Producer gas
- (A) Decreases with increase in surface area
- (B) Does not vary with increase in surface area
- (C) Is more for low volatile coal compared to high volatile coal
- (D) Is accelerated by storage in large heaps with small surface to volume ratio
- (A) 15-30
- (B) 1-2
- (C) 70-100
- (D) 150-200
- (A) Carbonisation
- (B) Oxidation
- (C) Coalification
- (D) Gasification
- (A) 0.5
- (B) 10
- (C) 50
- (D) 500
- (A) Gaseous
- (B) Solid
- (C) Liquid
- (D) Both
