Fuels and Combustion During combustion of gaseous fuels, deficiency of air Does not affect the flame length Lengthens the flame Tends to shorten the flame Increases the flame temperature Does not affect the flame length Lengthens the flame Tends to shorten the flame Increases the flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fusion point of coal ash increases with increase in its __________ content. Iron silicate Lime and magnesia Iron sulphate All of these Iron silicate Lime and magnesia Iron sulphate All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Preheated secondary air Very little excess air Low amount/current of combustion air High amount/current of combustion air Preheated secondary air Very little excess air Low amount/current of combustion air High amount/current of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High amount of sulphur and phosphorous in coke causes Decrease in its calorific value Brittleness of steel made by using it Increase in its strength None of these Decrease in its calorific value Brittleness of steel made by using it Increase in its strength None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ present in coal is not determined in its ultimate analysis. Hydrogen Total carbon Nitrogen Fixed carbon Hydrogen Total carbon Nitrogen Fixed carbon ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have Lower ash content Less moisture content High fusion point of its ash High bulk density Lower ash content Less moisture content High fusion point of its ash High bulk density ANSWER DOWNLOAD EXAMIANS APP
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