Fuels and Combustion Which of the following would require least amount of secondary air for combustion? Anthracite containing 10% volatile matter and 8% ash Semi-bituminous coal containing 25% ash and 20% volatile matter Bituminous coal containing 20% ash and 25% volatile matter Coke breeze containing 25% ash and 2% volatile matter Anthracite containing 10% volatile matter and 8% ash Semi-bituminous coal containing 25% ash and 20% volatile matter Bituminous coal containing 20% ash and 25% volatile matter Coke breeze containing 25% ash and 2% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of a gaseous fuel results in increased Ignition temperature Quantity of flue gas Flame temperature Flame length Ignition temperature Quantity of flue gas Flame temperature Flame length ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The gasification reaction represented by, C + H₂O = CO + H₂, is Catalytic Endothermic Exothermic Autocatalytic Catalytic Endothermic Exothermic Autocatalytic ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bunsen burner is an example of a/an __________ burner. Outside mixing/diffusion flame/nozzle mix type Rotary cup Submerged combustion Inside mixing/premix type Outside mixing/diffusion flame/nozzle mix type Rotary cup Submerged combustion Inside mixing/premix type ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent. 2.5 7.5 10.5 14.5 2.5 7.5 10.5 14.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas produced by high temperature carbonisation of coal (as compared to that produced by low temperature carbonisation), has Lower hydrogen content Both A & B Neither A nor B Higher calorific value Lower hydrogen content Both A & B Neither A nor B Higher calorific value ANSWER DOWNLOAD EXAMIANS APP
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