Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Safe condition for storage of high V.M. bituminous coal is that Neither A nor B Height of the coal heap should be < 3 metres Maximum 200 tons should be stored in a heap Both A and B Neither A nor B Height of the coal heap should be < 3 metres Maximum 200 tons should be stored in a heap Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Mixed gas' used in steel plants is a mixture of Coke oven gas and converter gas F. gas and coke oven gas Blast furnace gas and naphtha vapor Coke oven gas and L.P.G Coke oven gas and converter gas F. gas and coke oven gas Blast furnace gas and naphtha vapor Coke oven gas and L.P.G ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Percentage of hydrogen in coke oven gas may be around 60 10 25 45 60 10 25 45 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Caking power Neither A nor B Calorific value Both A & B Caking power Neither A nor B Calorific value Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm³ gas ? Producer gas Water gas Natural gas Blast furnace gas Producer gas Water gas Natural gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
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