Fuels and Combustion Which of the following fuel gases is heavier than air? Natural gas Blast furnace gas Coke oven gas Water gas Natural gas Blast furnace gas Coke oven gas Water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Fuel consumption for the same heat load All of these Stack gas temperature Percentage of oxygen in flue gases Fuel consumption for the same heat load All of these Stack gas temperature Percentage of oxygen in flue gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross heating value of coal is __________ the net heating value. Higher than Lower than Same as None of these Higher than Lower than Same as None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³. 6500 4000 10000 2500 6500 4000 10000 2500 ANSWER DOWNLOAD EXAMIANS APP
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 Coke breeze containing 25% ash and 2% volatile matter Bituminous coal containing 20% ash and 25% volatile matter Anthracite containing 10% volatile matter and 8% ash Semi-bituminous coal containing 25% ash and 20% volatile matter Coke breeze containing 25% ash and 2% volatile matter Bituminous coal containing 20% ash and 25% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is stripped of its H₂S and mercaptans content by Bubbling it through dilute sulphuric acid Adsorption on bog iron bed Adsorption on silica gel Absorption in wash oil Bubbling it through dilute sulphuric acid Adsorption on bog iron bed Adsorption on silica gel Absorption in wash oil ANSWER DOWNLOAD EXAMIANS APP
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