Fuels and Combustion Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? C + H₂O ⟷ CO + H₂ 2CO ⟷ C + CO₂ C + 2H₂O ⟷ CO₂ + 2H₂ CO + H₂O ⟷ CO₂ + H₂ C + H₂O ⟷ CO + H₂ 2CO ⟷ C + CO₂ C + 2H₂O ⟷ CO₂ + 2H₂ CO + H₂O ⟷ CO₂ + H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Density None of these Porosity Electrical resistivity Density None of these Porosity Electrical resistivity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Octane number of 2, 2, 4 - trimethyl pen-tane is In between 0 and 100 More than 100 100 In between 0 and 100 More than 100 100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Much higher Much lower Same Either lower or higher, depends on the type of fuel Much higher Much lower Same Either lower or higher, depends on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If oxygen content in the flue gas rises too high, fuel is being wasted by Moisture loss Dry gas/stack gas loss Incomplete combustion None of these Moisture loss Dry gas/stack gas loss Incomplete combustion None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in Ammoniacal cuprous chloride KOH None of these Pyrogallol solution Ammoniacal cuprous chloride KOH None of these Pyrogallol solution ANSWER DOWNLOAD EXAMIANS APP
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