Fuels and Combustion Temperature of coke oven gas just before entering into saturator (for recovery of NH₃) is about __________ °C. 180 120 30 65 180 120 30 65 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fixed carbon in coal is defined as The total quantity of carbon present in the coal That present in volatile matters Hundred minus the percentage of volatile matter, ash and moisture The one which is present in the residue after combustion The total quantity of carbon present in the coal That present in volatile matters Hundred minus the percentage of volatile matter, ash and moisture The one which is present in the residue after combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Either lower or higher, depends on the type of fuel Much lower Much higher Same Either lower or higher, depends on the type of fuel Much lower Much higher Same ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Junker's calorimeter is used to determine the calorific value of Fuel oil None of these Gaseous fuels Pulverised coal Fuel oil None of these Gaseous fuels Pulverised coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 35 10 5 20 35 10 5 20 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All tar is evolved at < 600°C All of these Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All tar is evolved at < 600°C All of these ANSWER DOWNLOAD EXAMIANS APP
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