Fuels and Combustion Highly caking coals Both B and C May damage the coke oven walls during carbonisation Produce strong coke Produce weak coke Both B and C May damage the coke oven walls during carbonisation Produce strong coke Produce weak coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 10200 5400 1800 3200 10200 5400 1800 3200 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Yield of carbonised products Caking index Friability & oxygen content Calorific value Yield of carbonised products Caking index Friability & oxygen content Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. 8000 6000 4000 1000 8000 6000 4000 1000 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. 5 10 20 35 5 10 20 35 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher Higher C/H ratio Difference in gross & net calorific value Calorific value Sulphur content Higher C/H ratio Difference in gross & net calorific value Calorific value Sulphur content ANSWER DOWNLOAD EXAMIANS APP
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