Fuels and Combustion The reaction, C + CO₂ ⟷ 2CO, taking place during coal gasification is called the __________ reaction. n. Neumann reversal Boudouard Shift conversion Reduction Neumann reversal Boudouard Shift conversion Reduction ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion By-products are __________ recovered in 'Beehive ovens'. Not at all Negligibly Partially Fully Not at all Negligibly Partially Fully ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of a gaseous fuel results in increased Ignition temperature Flame temperature Flame length Quantity of flue gas Ignition temperature Flame temperature Flame length Quantity of flue gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent. 40 and 70 25 and 97 95 and 100 80 and 97 40 and 70 25 and 97 95 and 100 80 and 97 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens None of these Produces larger size coke Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal ANSWER DOWNLOAD EXAMIANS APP
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