Fuels and Combustion Coal tar (produced by high temperature carbonisation) is the main source of Paraffins Aromatic compounds Alphatic compounds Olefins Paraffins Aromatic compounds Alphatic compounds Olefins ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a lean fuel gas? Blast furnace gas Natural gas LPG Coke oven gas Blast furnace gas Natural gas LPG Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For long flame and easy ignition, the coal used should have Low ash High ash High volatile matter High calorific value Low ash High ash High volatile matter High calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Agglutinating properties Swelling characteristics Resistance to impact breakage Abradability Agglutinating properties Swelling characteristics Resistance to impact breakage Abradability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Reduces the coking time Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Reduces the coking time ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation (as compared to high temperature carbonisation) of coal Aliphatic tar is produced Ammonia yield is more Free carbon in tar is more All of these Aliphatic tar is produced Ammonia yield is more Free carbon in tar is more All of these ANSWER DOWNLOAD EXAMIANS APP
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