Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Excessive power requirement of air blower Enhanced sensible heat loss in the flue gas High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Excessive power requirement of air blower Enhanced sensible heat loss in the flue gas High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coals used for the generation of producer gas should have Very low ash content (8-10%) High caking index Low fusion point of ash High volatile matter content Very low ash content (8-10%) High caking index Low fusion point of ash High volatile matter content 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
Fuels and Combustion Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if It is stored in tall heaps All of these It contains large amount of volatile matter Smaller fines are stored in large quantity It is stored in tall heaps All of these It contains large amount of volatile matter Smaller fines are stored in large quantity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Complete the combustion of fuel Increase the calorific value of the fuel Increase the adiabatic flame temperature Reduce its requirement for effecting the complete combustion Complete the combustion of fuel Increase the calorific value of the fuel Increase the adiabatic flame temperature Reduce its requirement for effecting the complete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm³ gas ? Blast furnace gas Water gas Producer gas Natural gas Blast furnace gas Water gas Producer gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
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