Fuels and Combustion In low temperature carbonisation of coal, the Volatile matter in coke is zero Temperature maintained is 700°C Yield of coke oven gas is 290 Nm³ /ton dry coal Yield of tar is about 3% of dry coal Volatile matter in coke is zero Temperature maintained is 700°C Yield of coke oven gas is 290 Nm³ /ton dry coal Yield of tar is about 3% of dry coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Young Neither A nor B Mature Both A & B Young Neither A nor B Mature Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to Minimise its corrosion Make it look attractive None of these Avoid radiation heat loss Minimise its corrosion Make it look attractive None of these Avoid radiation heat loss ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation (as compared to high temperature carbonisation) of coal Aliphatic tar is produced Free carbon in tar is more Ammonia yield is more All of these Aliphatic tar is produced Free carbon in tar is more Ammonia yield is more All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 6 36 18 28 6 36 18 28 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of coke oven gas is CO₂ H₂ N₂ CH₄ CO₂ H₂ N₂ CH₄ ANSWER DOWNLOAD EXAMIANS APP