A. Caking tendency
B. Coking tendency
C. Clinkering tendency
D. Size stability
A. Vitrain
B. Fussain
C. Both A. & B.
D. Neither A. nor B.
A. CO
B. CO2
C. H2O
D. Both B. & C.
A. Aromatic compounds
B. Aliphatic compounds
C. Paraffins
D. Olefins
A. Excessive power requirement of air blower
B. Enhanced sensible heat loss in the flue gas
C. Intermittent and uncontrolled combustion of the fuel
D. High exit flue gas temperature from the furnace
A. 5
B. 15
C. 25
D. 50
A. Is friable, charcoal like substance
B. Has highest fixed carbon and lowest volatile matter content of all the four banded components
of coal
C. Is non-coking, but when blended with highly coking coal, controls its swelling and produces
high strength coke on carbonisation
D. All A., B. and C.