Fuels and Combustion L.D. converter gas (produced in steel plant) comprises mainly of CO & O₂ CO (upto 65%) & CO₂ CO₂ & H₂ CO₂ & O₂ CO & O₂ CO (upto 65%) & CO₂ CO₂ & H₂ CO₂ & O₂ 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. 35 20 10 5 35 20 10 5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur Thick fire bed and preheated primary air All of these Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur Thick fire bed and preheated primary air All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Undercharging of coal in the by-product coke ovens results in Decrease in the c.v. of coke oven gas Increase in its throughput Increase in the c.v. of coke oven gas No change in the c.v. of coke oven gas Decrease in the c.v. of coke oven gas Increase in its throughput Increase in the c.v. of coke oven gas No change in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent. 25 55 5 75 25 55 5 75 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lignite is A coking coal A high rank coal Can be used for gasification and steam generation A black banded coal which burns with a non-smoky yellowish flame A coking coal A high rank coal Can be used for gasification and steam generation A black banded coal which burns with a non-smoky yellowish flame ANSWER DOWNLOAD EXAMIANS APP
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