Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Yield of carbonised products Caking index Friability & oxygen content Calorific value Yield of carbonised products Caking index Friability & oxygen content Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The pyragallol solution used in orsat apparatus can absorb Both O₂ and CO All of these Only O₂ Both O₂ and CO₂ Both O₂ and CO All of these Only O₂ Both O₂ and CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature is attained, when the fuel is burnt with More than theoretically required amount of air Less than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen More than theoretically required amount of air Less than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Is harder and stronger Has low quantity of mineral matter Is not subjected to washing Has higher calorific value Is harder and stronger Has low quantity of mineral matter Is not subjected to washing Has higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value is the highest out of the following for Blast furnace gas Water gas Producer gas Coke oven gas Blast furnace gas Water gas Producer gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard coke is manufactured from Bituminous coal Anthracite Lignite Semi-anthracite Bituminous coal Anthracite Lignite Semi-anthracite ANSWER DOWNLOAD EXAMIANS APP