Fuels and Combustion Gross and net calorific value of a fuel will be the same Under no circumstances Ifits carbon content is very low If its ash content is zero If its hydrogen/hydrogen compound content is zero Under no circumstances Ifits carbon content is very low If its ash content is zero If its hydrogen/hydrogen compound content is zero ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace coke is made from coal by Medium temperature carbonisation High temperature carbonisation Heating the coal in an oven in presence of air Low temperature carbonisation Medium temperature carbonisation High temperature carbonisation Heating the coal in an oven in presence of air Low temperature carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which is the heaviest fuel gas out of the following? Coke oven gas Water gas Carburetted water gas Blast furnace gas Coke oven gas Water gas Carburetted water gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Purity of coke means that, it is high in carbon and low in Ash Moisture Iron Volatiles Ash Moisture Iron Volatiles ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for All of these Removing ash from the coal based on difference in specific gravity of coal and ash Washing lump coal (> 80 mm size) Washing fine coal dust (< 0.5 mm size) All of these Removing ash from the coal based on difference in specific gravity of coal and ash Washing lump coal (> 80 mm size) Washing fine coal dust (< 0.5 mm size) ANSWER DOWNLOAD EXAMIANS APP
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