Fuels and Combustion Low temperature oxidation of stored coal results in the Decrease in its caking power & calorific value Decrease in its carbon & hydrogen content Increase in its oxygen content All of these Decrease in its caking power & calorific value Decrease in its carbon & hydrogen content Increase in its oxygen content All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main advantage of forced draft over natural draft is that Furnace control is easier Combustion of fuel is complete Smaller height chimney can be used All of these Furnace control is easier Combustion of fuel is complete Smaller height chimney can be used All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sulphur in metallurgical coal Affects the quality of steel produced as cracks develop on the surface while rolling the steel Both A and B Neither A nor B Contributes to its heating value Affects the quality of steel produced as cracks develop on the surface while rolling the steel Both A and B Neither A nor B Contributes to its heating value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher Heat release rate (thus requiring smaller combustion chamber) All of these Adiabatic flame temperature Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Heat release rate (thus requiring smaller combustion chamber) All of these Adiabatic flame temperature Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which is the most matured coal? Bituminous Lignite Anthracite Semi-anthracite Bituminous Lignite Anthracite Semi-anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that No excess air has been used for combustion Complete combustion of fuel has taken place 21% excess air has been used for combustion 21% excess oxygen has been used for combustion No excess air has been used for combustion Complete combustion of fuel has taken place 21% excess air has been used for combustion 21% excess oxygen has been used for combustion ANSWER DOWNLOAD EXAMIANS APP
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