Fuels and Combustion Preheating of combustion air is done to Complete the combustion of fuel Increase the adiabatic flame temperature Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion Complete the combustion of fuel Increase the adiabatic flame temperature Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Carburetted water gas Coke oven gas LPG Gobar gas Carburetted water gas Coke oven gas LPG Gobar gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 24 6 18 12 24 6 18 12 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require least amount of secondary air for combustion? 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 Anthracite containing 10% volatile matter and 8% ash Semi-bituminous coal containing 25% ash and 20% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The internal energy of the combustion products is __________ compared to that of reactants. More Equal Less More or less ; (depends on the state of fuel.) More Equal Less More or less ; (depends on the state of fuel.) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ prohibits the use of alcohols directly in petrol engines. Low calorific value Low flash point Low octane number High cost & availability Low calorific value Low flash point Low octane number High cost & availability ANSWER DOWNLOAD EXAMIANS APP
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