Fuels and Combustion Washing of coal is done to reduce the Both B and C Inherent impurities Adhering impurities Mineral matter Both B and C Inherent impurities Adhering impurities Mineral matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 10 5 2 0.1 10 5 2 0.1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker. 1250 1350 1100 1400 1250 1350 1100 1400 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following combustibles is absent in blast furnace gas? CH₄ H₂ CO None of these CH₄ H₂ CO None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Density Electrical resistivity None of these Porosity Density Electrical resistivity None of these Porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fussain All of these Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is friable, charcoal like substance All of these Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is friable, charcoal like substance ANSWER DOWNLOAD EXAMIANS APP
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