Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Furnace oil Coke oven gas Pulverised coal Lump coal (fixed on chain grate) Furnace oil Coke oven gas Pulverised coal Lump coal (fixed on chain grate) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? C + 2H₂O ⟷ CO₂ + 2H₂ 2CO ⟷ C + CO₂ C + H₂O ⟷ CO + H₂ CO + H₂O ⟷ CO₂ + H₂ C + 2H₂O ⟷ CO₂ + 2H₂ 2CO ⟷ C + CO₂ C + H₂O ⟷ CO + H₂ CO + H₂O ⟷ CO₂ + H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dry air requirement for burning 1 Nm³ of CO to CO₂ may be around __________ Nm³. 2.4 0.87 11.4 1.75 2.4 0.87 11.4 1.75 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg. 1000 4000 8000 15000 1000 4000 8000 15000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation Calorific value of the coke oven gas is lower Yield of ammonia is less Aromatic content of tar is low H₂ content in the coke oven gas is more Calorific value of the coke oven gas is lower Yield of ammonia is less Aromatic content of tar is low H₂ content in the coke oven gas is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Deficiency of combustion air during combustion of a gaseous fuel Both A & B Causes heat loss of fuel by its partial combustion Shortens the flame Lengthens the flame Both A & B Causes heat loss of fuel by its partial combustion Shortens the flame Lengthens the flame ANSWER DOWNLOAD EXAMIANS APP
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