Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the Calorific value of the fuel Flame temperature None of these Scale losses of the furnace stock Calorific value of the fuel Flame temperature None of these Scale losses of the furnace stock ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain CO CO₂ Both B & C H₂O CO CO₂ Both B & C H₂O ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bunsen burner is an example of a/an __________ burner. Inside mixing/premix type Submerged combustion Outside mixing/diffusion flame/nozzle mix type Rotary cup Inside mixing/premix type Submerged combustion Outside mixing/diffusion flame/nozzle mix type Rotary cup ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because It reduces its flame temperature tremendously There are chances of explosion during preheating It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously There are chances of explosion during preheating It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 5 10 2 0.1 5 10 2 0.1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Critical Air Blast (CAB) value of coke is a direct measure of its None of these Reactivity Hardness Strength None of these Reactivity Hardness Strength ANSWER DOWNLOAD EXAMIANS APP
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