Fuels and Combustion Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? C + 2H₂O ⟷ CO₂ + 2H₂ C + H₂O ⟷ CO + H₂ 2CO ⟷ C + CO₂ CO + H₂O ⟷ CO₂ + H₂ C + 2H₂O ⟷ CO₂ + 2H₂ C + H₂O ⟷ CO + H₂ 2CO ⟷ C + CO₂ CO + H₂O ⟷ CO₂ + H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of MgSO₄ & BaCl₂ BaSO₄ & NaCl MgCO₃ & NaCl MgO & Na₂CO₃ MgSO₄ & BaCl₂ BaSO₄ & NaCl MgCO₃ & NaCl MgO & Na₂CO₃ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ? Multicyclones Hydrocyclones Wet scrubber Bag filter Multicyclones Hydrocyclones Wet scrubber Bag filter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Weathering of coal during storage causes Decrease in its caking capacity All of these Increase in its friability Reduction in coal size Decrease in its caking capacity All of these Increase in its friability Reduction in coal size ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Lower ignition temperature Lower theoretical flame temperature Narrower limit of inflammability Higher calorific value Lower ignition temperature Lower theoretical flame temperature Narrower limit of inflammability Higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Stack gas temperature Percentage of oxygen in flue gases Fuel consumption for the same heat load All of these Stack gas temperature Percentage of oxygen in flue gases Fuel consumption for the same heat load All of these ANSWER DOWNLOAD EXAMIANS APP
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