Fuels and Combustion A good metallurgical coke Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle Should have low fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as N₂ CO O₂ SO₂ N₂ CO O₂ SO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Admitting more gas Shutting gas supply Shutting air supply Admitting more air Admitting more gas Shutting gas supply Shutting air supply Admitting more air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm³. 300 30 3000 30, 000 300 30 3000 30, 000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Reduce its requirement for effecting the complete combustion Increase the calorific value of the fuel Complete the combustion of fuel Increase the adiabatic flame temperature Reduce its requirement for effecting the complete combustion Increase the calorific value of the fuel Complete the combustion of fuel Increase the adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack heat losses can be minimised by Maintaining proper draft in the furnace Using low c.v. fuels Oxygen enrichment of combustion air Controlling the excess air Maintaining proper draft in the furnace Using low c.v. fuels Oxygen enrichment of combustion air Controlling the excess air ANSWER DOWNLOAD EXAMIANS APP
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