Fuels and Combustion A sooty flame can be made non-luminous by Admitting more air Admitting more gas Shutting gas supply Shutting air supply Admitting more air Admitting more gas Shutting gas supply Shutting air supply ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in narrow by-product coke ovens is around __________ hours. 48 18 8 80 48 18 8 80 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O) ? Blast furnace coke Low temperature coke Sub-bituminous coal Anthracite coal Blast furnace coke Low temperature coke Sub-bituminous coal Anthracite coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 10 35 5 20 10 35 5 20 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coals used for the generation of producer gas should have High caking index Low fusion point of ash Very low ash content (8-10%) High volatile matter content High caking index Low fusion point of ash Very low ash content (8-10%) High volatile matter content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel None of these Decreases the abrasion resistance of coke Decreases the hardness of coke Causes brittleness in steel None of these Decreases the abrasion resistance of coke Decreases the hardness of coke ANSWER DOWNLOAD EXAMIANS APP
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