- (A) Has higher calorific value
- (B) Is harder and stronger
- (C) Is not subjected to washing
- (D) Has low quantity of mineral matter
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- (A) Coal tar
- (B) Bitumen
- (C) Molasses
- (D) None of these
- (A) 12 hours
- (B) 2-3 days
- (C) One week
- (D) Two weeks
- (A) Calorific value of the fuel
- (B) Flame temperature achieved
- (C) Speed of combustion of fuel
- (D) Heat transfer rate to the stock in the furnace
- (A) Is equal to the heat of formation
- (B) Is always negative
- (C) Can’t be known without calculating it
- (D) Is always positive
- (A) Ignites less easily than anthracite
- (B) Is generally coking
- (C) Burns with smoky yellow flame
- (D) Both
- (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) Process of conversion of lignite into anthracite
- (B) Underground gasification of coal
- (C) Complete combustion of coal
- (D) Direct hydrogenation of coal
- (A) 1
- (B) < 1
- (C) > 1
- (D) Unpredictable
- (A) It contains large amount of volatile matter
- (B) It is stored in tall heaps
- (C) Smaller fines are stored in large quantity
- (D) All
