Fuels and Combustion Compound coke ovens are those which can be heated by Both steam and electrical power Rich gas (e.g., coke oven gas) Lean gas (e.g., B.F. gas) Both B and C Both steam and electrical power Rich gas (e.g., coke oven gas) Lean gas (e.g., B.F. gas) Both B and C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Methane percentage in the coke oven gas increases Tar yield increases Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases Methane percentage in the coke oven gas increases Tar yield increases Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 6 18 28 36 6 18 28 36 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion (64-132) rank coal (ASTM) means a coal with 64% Fixed carbon and a heating value of 132 BTU/1b Ash and a heating value of 13, 200 BTU/1b Fixed carbon and having a heat value of 13, 200 BTU/1b None of these Fixed carbon and a heating value of 132 BTU/1b Ash and a heating value of 13, 200 BTU/1b Fixed carbon and having a heat value of 13, 200 BTU/1b None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Lengthens the flame Does not affect the flame length Tends to shorten the flame Increases the flame temperature Lengthens the flame Does not affect the flame length Tends to shorten the flame Increases the flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 10 2 5 0.1 10 2 5 0.1 ANSWER DOWNLOAD EXAMIANS APP
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