Fuels and Combustion Fussain Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Is friable, charcoal like substance All of these Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Is friable, charcoal like substance All of these Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Hydrogen Methane All of these Unsaturated hydrocarbons Hydrogen Methane All of these Unsaturated hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm. 50 5000 10000 1000 50 5000 10000 1000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Height of coke oven is limited (say maximum upto 7 metres) mainly by the Structural strength of silica bricks Problem of uniform heating along its height Problem in door cleaning Buckling of ram of pusher car at the time of coke pushing Structural strength of silica bricks Problem of uniform heating along its height Problem in door cleaning Buckling of ram of pusher car at the time of coke pushing ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in moisture content of coal, its None of these Calorific value increases sometimes Clinkering tendency during combustion increases Bulk density always decreases None of these Calorific value increases sometimes Clinkering tendency during combustion increases Bulk density always decreases 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
EXAMIANS