Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the Tar yield is more Aromatic content of tar produced is more Gas yield is less Ignition temperature of coke produced is less Tar yield is more Aromatic content of tar produced is more Gas yield is less Ignition temperature of coke produced is less ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The internal energy of the combustion products is __________ compared to that of reactants. Equal More or less ; (depends on the state of fuel.) More Less Equal More or less ; (depends on the state of fuel.) More Less ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Mineral matter content Caking index Both B and C Ash content Mineral matter content Caking index Both B and C Ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal containing large quantity of __________ are difficult to wash. Free impurities Volatile matter Ash Inherent mineral matter Free impurities Volatile matter Ash Inherent mineral matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The hottest part of the flame lies in its____zone. Unburnt gases Non-luminous Luminous Yellow Unburnt gases Non-luminous Luminous Yellow ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = A M = 1.8 A M = 0.5 A M = 1.1 A M = A M = 1.8 A M = 0.5 A M = 1.1 A ANSWER DOWNLOAD EXAMIANS APP
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