Fuels and Combustion Coalification means the Underground gasification of coal Complete combustion of coal Direct hydrogenation of coal Process of conversion of lignite into anthracite Underground gasification of coal Complete combustion of coal Direct hydrogenation of coal Process of conversion of lignite into anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas is a very poisonous gas because of its predominantly high __________ content. H₂O CO₂ CO CH₄ H₂O CO₂ CO CH₄ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have High fusion point of its ash Less moisture content Lower ash content High bulk density High fusion point of its ash Less moisture content Lower ash content High bulk density ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is CO₂ CH₄ N₂ H₂ CO₂ CH₄ N₂ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Actual flame temperature is always lower than the adiabatic flame temperature, because there is No possibility of obtaining complete combustion at high temperature Always loss of heat from the flame Both A & B Neither A nor B No possibility of obtaining complete combustion at high temperature Always loss of heat from the flame Both A & B Neither A nor B 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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