Fuels and Combustion Which of the following has the highest flame velocity? C₂H₆ CO CH₄ H₂ C₂H₆ CO CH₄ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Highly caking coals Both B and C Produce strong coke May damage the coke oven walls during carbonisation Produce weak coke Both B and C Produce strong coke May damage the coke oven walls during carbonisation Produce weak coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ? Wet scrubber Bag filter Hydrocyclones Multicyclones Wet scrubber Bag filter Hydrocyclones Multicyclones ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Assam coals suffers mainly from the disadvantage of high __________ content. Moisture Ash Sulphur (4-6%) Volatile matter Moisture Ash Sulphur (4-6%) Volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Width of the coke oven towards coke side is slightly more than that on pusher side to Facilitate uniform heating of the oven Increase the output of the coke None of these Facilitate easy discharging of coke as it swells during carbonisation Facilitate uniform heating of the oven Increase the output of the coke None of these Facilitate easy discharging of coke as it swells during carbonisation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS