Fuels and Combustion Preheating of __________ the flame temperature. The gaseous fuel before combustion decreases Either the fuel or the air does not affect Combustion air decreases Either the fuel or the air or both, increases The gaseous fuel before combustion decreases Either the fuel or the air does not affect Combustion air decreases Either the fuel or the air or both, increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to Inadequate ventilation All of these Low temperature oxidation Storage in large heaps with small surface to volume ratio Inadequate ventilation All of these Low temperature oxidation Storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Junker's calorimeter is used to determine the calorific value of Gaseous fuels Pulverised coal Fuel oil None of these Gaseous fuels Pulverised coal Fuel oil None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Calorific value Neither A nor B Both A & B Caking power Calorific value Neither A nor B Both A & B Caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is unsuitable fuel for producer gas manufacture? Coal having low fusion point of its ash Anthracite Coke Coal having high fusion point of its ash Coal having low fusion point of its ash Anthracite Coke Coal having high fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
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