Fuels and Combustion When the coal is heated in absence of air, it is called its Deoxidation Coalification Gasification Carbonisation Deoxidation Coalification Gasification Carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Tends to shorten the flame Lengthens the flame Does not affect the flame length Increases the flame temperature Tends to shorten the flame Lengthens the flame Does not affect the flame length Increases the flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Soft coke is not Produced by low temperature carbonisation of coal A domestic fuel Used in blast furnaces None of these Produced by low temperature carbonisation of coal A domestic fuel Used in blast furnaces None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 15 & 8 10 & 3 3 & 10 10 & 20 15 & 8 10 & 3 3 & 10 10 & 20 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Badly affects the quality of steel Is not undersirable Increases its caking power Reduces its calorific value Badly affects the quality of steel Is not undersirable Increases its caking power Reduces its calorific value ANSWER DOWNLOAD EXAMIANS APP
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