Fuels and Combustion Coal tar (produced by high temperature carbonisation) is the main source of Alphatic compounds Olefins Aromatic compounds Paraffins Alphatic compounds Olefins Aromatic compounds Paraffins ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? It can not burn low grade coal It achieves higher fuel combustion efficiency None of these Less heat transfer surface area is required in boilers It can not burn low grade coal It achieves higher fuel combustion efficiency None of these Less heat transfer surface area is required in boilers ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Increases the loss of fine coal dust from the ovens when charging Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Increases the loss of fine coal dust from the ovens when charging ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains Greater percentage of ash Less volatile matter More carbon All of these Greater percentage of ash Less volatile matter More carbon All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Sinter making Domestic ovens Iron blast furnace Cupola in foundaries Sinter making Domestic ovens Iron blast furnace Cupola in foundaries ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Yield of blast furnace gas is about __________ Nm³ /ton of pig iron. 5000 2000 300 10000 5000 2000 300 10000 ANSWER DOWNLOAD EXAMIANS APP
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