Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Heat losses Long flame None of these Condensation of water vapour from the fuel gas Heat losses Long flame None of these Condensation of water vapour from the fuel gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of nitrogen in combustion air does not reduce the Flue gas temperature Amount of heat liberated Any of the above Flame temperature Flue gas temperature Amount of heat liberated Any of the above Flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? C + H₂O ⟷ CO + H₂ CO + H₂O ⟷ CO₂ + H₂ 2CO ⟷ C + CO₂ C + 2H₂O ⟷ CO₂ + 2H₂ C + H₂O ⟷ CO + H₂ CO + H₂O ⟷ CO₂ + H₂ 2CO ⟷ C + CO₂ C + 2H₂O ⟷ CO₂ + 2H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. Either more or less; depends on the type of fuel More than Less than Equal to Either more or less; depends on the type of fuel More than Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter content (M) and ash content (A) in coal are approximately related as M = 2A M = 1.1A M = A M = 1.5A M = 2A M = 1.1A M = A M = 1.5A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 15 & 8 10 & 3 10 & 20 3 & 10 15 & 8 10 & 3 10 & 20 3 & 10 ANSWER DOWNLOAD EXAMIANS APP
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