Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Is more for low volatile coal compared to high volatile coal Decreases with increase in surface area Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Decreases with increase in surface area Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Desirable "Micum Index" values of metal-lurical coke are M40 > 10% and M10 < 78% M40 > 78% and M10 < 10% M40 > 4% and M10 < 80% M40 > 98% and M10 < 2% M40 > 10% and M10 < 78% M40 > 78% and M10 < 10% M40 > 4% and M10 < 80% M40 > 98% and M10 < 2% ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of nitrogen in combustion air does not reduce the Amount of heat liberated Flame temperature Flue gas temperature Any of the above Amount of heat liberated Flame temperature Flue gas temperature Any of the above ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Caking index Friability & oxygen content Calorific value Yield of carbonised products Caking index Friability & oxygen content Calorific value Yield of carbonised products ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%). 1500 5000 3500 150 1500 5000 3500 150 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to Storage in large heaps with small surface to volume ratio All of these Inadequate ventilation Low temperature oxidation Storage in large heaps with small surface to volume ratio All of these Inadequate ventilation Low temperature oxidation ANSWER DOWNLOAD EXAMIANS APP
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