Fuels and Combustion Presence of free moisture in coal is most disadvantageous during Handling (e.g. when emptying wagons) Its pulverisation (as it requires more power) Combustion of fire slacks on the grates None of these Handling (e.g. when emptying wagons) Its pulverisation (as it requires more power) Combustion of fire slacks on the grates None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature is attained, when the fuel is burnt with Theoretically required amount of air More than theoretically required amount of air Theoretically required amount of oxygen Less than theoretically required amount of air Theoretically required amount of air More than theoretically required amount of air Theoretically required amount of oxygen Less than theoretically required amount of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is CH₄ N₂ CO₂ H₂ CH₄ N₂ CO₂ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have High fusion point of its ash Less moisture content High bulk density Lower ash content High fusion point of its ash Less moisture content High bulk density Lower ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Burn CO to CO₂ Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner Dry and transport the coal Burn CO to CO₂ Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner Dry and transport the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following petrographic constituents of coal is non-coking? Durain Vitrain Fussain Clarain Durain Vitrain Fussain Clarain ANSWER DOWNLOAD EXAMIANS APP
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