Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because It reduces its flame temperature tremendously It reduces its calorific value tremendously There are chances of explosion during preheating The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously It reduces its calorific value tremendously There are chances of explosion during preheating The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg. 8000 4000 1000 15000 8000 4000 1000 15000 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 Grindability index of a coal is 100. It implies that the Coal can be pulverised with great difficulty Power consumption in grinding the coal will be very high Coal can't be pulverised Coal can be easily pulverised Coal can be pulverised with great difficulty Power consumption in grinding the coal will be very high Coal can't be pulverised Coal can be easily pulverised ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The pyragallol solution used in orsat apparatus can absorb Both O₂ and CO₂ Only O₂ Both O₂ and CO All of these Both O₂ and CO₂ Only O₂ Both O₂ and CO All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Soft coke is not Used in blast furnaces A domestic fuel None of these Produced by low temperature carbonisation of coal Used in blast furnaces A domestic fuel None of these Produced by low temperature carbonisation of coal ANSWER DOWNLOAD EXAMIANS APP
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