Fuels and Combustion When the coal is heated in absence of air, it is called its Coalification Gasification Deoxidation Carbonisation Coalification Gasification Deoxidation Carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke made in narrower by-product coke ovens (as compared to wider ovens) is Less reactive Stronger All of these Smaller in size Less reactive Stronger All of these Smaller in size ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The gasification reaction represented by, C + H₂O = CO + H₂, is Endothermic Catalytic Autocatalytic Exothermic Endothermic Catalytic Autocatalytic Exothermic ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 3200 5400 1800 10200 3200 5400 1800 10200 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 Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The fuel ratio of a coal is Helpful in estimation of its rank Both A and B The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Helpful in estimation of its rank Both A and B The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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