Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 950 750 1150 550 950 750 1150 550 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is called "blue gas"? Producer gas Natural gas Water gas Coke oven gas Producer gas Natural gas Water gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fixed carbon in coal is defined as That present in volatile matters The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal That present in volatile matters The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C/H ratio is the maximum in case of Furnace oil Natural gas Naphtha Coal Furnace oil Natural gas Naphtha Coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Iron blast furnace Cupola in foundaries Domestic ovens Sinter making Iron blast furnace Cupola in foundaries Domestic ovens Sinter making ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because 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 The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot ANSWER DOWNLOAD EXAMIANS APP
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