Fuels and Combustion High ash containing coke Is desirable in producer gas manufacture None of these Has poor strength and abrasion resistance Produces more slag when used in the blast furnace Is desirable in producer gas manufacture None of these Has poor strength and abrasion resistance Produces more slag when used in the blast furnace ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cooling medium used in dry quenching of coke is Phenolic water Carbon dioxide Nitrogen Air Phenolic water Carbon dioxide Nitrogen Air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Remains same Decreases Either A or B, depends on other factors Increases Remains same Decreases Either A or B, depends on other factors Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens Increases the time of carbonisation Produces larger size coke May damage its walls due to abrupt excessive swelling of coal None of these Increases the time of carbonisation Produces larger size coke May damage its walls due to abrupt excessive swelling of coal None of these 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 N₂ CH₄ CO₂ H₂ N₂ CH₄ CO₂ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal All tar is evolved at < 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All of these All tar is evolved at < 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All of these ANSWER DOWNLOAD EXAMIANS APP