Fuels and Combustion Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal? Fussain Vitrain Durain Clarain Fussain Vitrain Durain Clarain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent. 35 to 45 55 to 75 15 to 25 75 35 to 45 55 to 75 15 to 25 75 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 30-33 1-2 10-15 22-26 30-33 1-2 10-15 22-26 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Grindability index of a coal is 100. It implies that the Coal can be easily pulverised Coal can't be pulverised Power consumption in grinding the coal will be very high Coal can be pulverised with great difficulty Coal can be easily pulverised Coal can't be pulverised Power consumption in grinding the coal will be very high Coal can be pulverised with great difficulty ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion One kg of carbon for theoretically complete combustion requires __________ kg of air. 12 11.5 0.5 23 12 11.5 0.5 23 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation Both A & B Neither A nor B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Both A & B Neither A nor B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls ANSWER DOWNLOAD EXAMIANS APP
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