Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 12 24 18 6 12 24 18 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bulk density of pulverised coal may be about __________ kg/m³. 100 1000 1500 500 100 1000 1500 500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Is not possible on commerical scale Decreases its calorific value Does not alter its calorific value Increases its calorific value Is not possible on commerical scale Decreases its calorific value Does not alter its calorific value Increases its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas comprises mainly of CO & H₂ CO & N₂ CO₂ & N₂ CO₂ & H₂ CO & H₂ CO & N₂ CO₂ & N₂ CO₂ & H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of coal charge for the coke ovens reduces the Yield of gas and tar All of these Time of carbonisation Fuel consumption in coking Yield of gas and tar All of these Time of carbonisation Fuel consumption in coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because 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 The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously ANSWER DOWNLOAD EXAMIANS APP
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