Fuels and Combustion Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent. None of these In between 37 & 71% < 37% >71% None of these In between 37 & 71% < 37% >71% ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a lean fuel gas? Blast furnace gas Natural gas LPG Coke oven gas Blast furnace gas Natural gas LPG Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Is accelerated by storage in large heaps with small surface to volume ratio Does not vary with increase in surface area Is more for low volatile coal compared to high volatile coal Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Does not vary with increase in surface area Is more for low volatile coal compared to high volatile coal Decreases with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas constitutes mainly of CO & N₂ CH₄ & CO₂ CO & CO₂ CH₄ & N₂ CO & N₂ CH₄ & CO₂ CO & CO₂ CH₄ & N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Yield of carbonised products Friability & oxygen content Calorific value Caking index Yield of carbonised products Friability & oxygen content Calorific value Caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal. Slow & high Slow & low Fast & slow Fast & high Slow & high Slow & low Fast & slow Fast & high ANSWER DOWNLOAD EXAMIANS APP
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