Fuels and Combustion Beehive coke oven Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the Low calorific value of the fuel Presence of large quantity of hydrogen in the fuel High sulphur content in the fuel Lack of thorough mixing of fuel with air Low calorific value of the fuel Presence of large quantity of hydrogen in the fuel High sulphur content in the fuel Lack of thorough mixing of fuel with air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain Both B & C H₂O CO₂ CO Both B & C H₂O CO₂ CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The advantage of firing pulverised coal in the furnace lies in the fact, that it All of these Permits the use of low fusion point ash coal Permits the use of high ash content coal Accelerates the burning rate and economises on fuel combustion All of these Permits the use of low fusion point ash coal Permits the use of high ash content coal Accelerates the burning rate and economises on fuel combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at Raniganj Dankuni (West Bengal) Singreni (AP.) Dhanbad Raniganj Dankuni (West Bengal) Singreni (AP.) Dhanbad ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most poisonous gas? Blast furnace gas L.D. converter gas Coke oven gas Producer gas Blast furnace gas L.D. converter gas Coke oven gas Producer gas ANSWER DOWNLOAD EXAMIANS APP