Fuels and Combustion Calorific value of coke oven gas is around __________ Kcal/Nm³. 2000 4200 7500 900 2000 4200 7500 900 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cooling medium used in dry quenching of coke is Air Phenolic water Nitrogen Carbon dioxide Air Phenolic water Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Oxidation Carbonisation Gasification Coalification Oxidation Carbonisation Gasification Coalification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Percentage of carbon monoxide in blast furnace gas may be around 14 52 22 8 14 52 22 8 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these ANSWER DOWNLOAD EXAMIANS APP
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. >71% < 37% None of these In between 37 & 71% >71% < 37% None of these In between 37 & 71% ANSWER DOWNLOAD EXAMIANS APP
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