Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 22-26 30-33 1-2 10-15 22-26 30-33 1-2 10-15 ANSWER DOWNLOAD EXAMIANS APP
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 The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its calorific value tremendously It reduces its flame temperature tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its calorific value tremendously ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Aanthracite Semi-bituminous coal Coke Bituminous coal Aanthracite Semi-bituminous coal Coke Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Size of blast furnace grade coke is __________ mm. 15-25 25-80 >100 0-15 15-25 25-80 >100 0-15 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. None of these Moisture Sulphur & phosphorus Ash None of these Moisture Sulphur & phosphorus Ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by Oxygen enriched air Oxygen None of these Air Oxygen enriched air Oxygen None of these Air ANSWER DOWNLOAD EXAMIANS APP
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