Fuels and Combustion Fussain Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is friable, charcoal like substance Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation All of these Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is friable, charcoal like substance Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The gasification reaction represented by, C + H₂O = CO + H₂, is Exothermic Endothermic Autocatalytic Catalytic Exothermic Endothermic Autocatalytic Catalytic ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the Hot scarfing of steel slabs Steel ladle drying Coke oven battery heating Mixing with blast furnace gas Hot scarfing of steel slabs Steel ladle drying Coke oven battery heating Mixing with blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lignite is A black banded coal which burns with a non-smoky yellowish flame A high rank coal A coking coal Can be used for gasification and steam generation A black banded coal which burns with a non-smoky yellowish flame A high rank coal A coking coal Can be used for gasification and steam generation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The fuel ratio of a coal is The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Both A and B Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Both A and B Helpful in estimation of its rank ANSWER DOWNLOAD EXAMIANS APP
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