Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Caking power Both A & B Neither A nor B Calorific value Caking power Both A & B Neither A nor B Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Moisture loss is determined by the The water formed by combustion reaction Both A and B Humidity of combustion air Moisture content of fuel The water formed by combustion reaction Both A and B Humidity of combustion air Moisture content of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long 200 meters Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long 200 meters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accounts for maximum energy loss in a boiler? Flue gases Ash content in the fuel Incomplete combustion Unburnt carbon in flue gases Flue gases Ash content in the fuel Incomplete combustion Unburnt carbon in flue gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between gross and net calorific value will be minimum in case of Blast furnace gas Water gas Natural gas Coke oven gas Blast furnace gas Water gas Natural gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
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