Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Mature Young Both A & B Neither A nor B Mature Young Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Low forced draught and fuel bed temperature Thick fire bed and preheated primary air All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur Low forced draught and fuel bed temperature Thick fire bed and preheated primary air All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm. 5000 10000 50 1000 5000 10000 50 1000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fusion point of coal ash increases with increase in its __________ content. Iron silicate All of these Iron sulphate Lime and magnesia Iron silicate All of these Iron sulphate Lime and magnesia ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Grindability index of a coal is 100. It implies that the Coal can be easily pulverised Power consumption in grinding the coal will be very high Coal can't be pulverised Coal can be pulverised with great difficulty Coal can be easily pulverised Power consumption in grinding the coal will be very high Coal can't be pulverised Coal can be pulverised with great difficulty ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The function of secondary combustion air is to None of these Pneumatically convey the pulverised coal Completely burn the volatile matter Burn the lumpy coal None of these Pneumatically convey the pulverised coal Completely burn the volatile matter Burn the lumpy coal ANSWER DOWNLOAD EXAMIANS APP
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