Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously There are chances of explosion during preheating It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously There are chances of explosion during preheating It reduces its calorific value tremendously ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec. 500 50 10 0.5 500 50 10 0.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in Oxygen Either A or C without gain or loss of heat Either A or B Air Oxygen Either A or C without gain or loss of heat Either A or B Air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. Not related to Same as Higher than Lower than Not related to Same as Higher than Lower than ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion KOH solution used in orsat apparatus absorbs Neither A nor B SO₂ CO₂ Both A & B Neither A nor B SO₂ CO₂ Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation of coal produces No by-products Very low calorific value coke oven gas Metallurgical coke Soft coke No by-products Very low calorific value coke oven gas Metallurgical coke Soft coke ANSWER DOWNLOAD EXAMIANS APP
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