Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 10200 3200 1800 5400 10200 3200 1800 5400 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Anthracite can be used for Recarbonising steel Blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke All of these Making carbon electrodes Recarbonising steel Blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke All of these Making carbon electrodes ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent. 95 and 100 80 and 97 25 and 97 40 and 70 95 and 100 80 and 97 25 and 97 40 and 70 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high volatile matter content will None of these Give less yield of tar and gas on carbonisation Have a very high calorific value Burn with a small non-smoky flame None of these Give less yield of tar and gas on carbonisation Have a very high calorific value Burn with a small non-smoky flame 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 ? Hydrocyclones Multicyclones Bag filter Wet scrubber Hydrocyclones Multicyclones Bag filter Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal compared to the lumpy coal Facilitates combustion with lower excess air All of these Provides higher thermal efficiency & flame temperature Provides better control of furnace temperature Facilitates combustion with lower excess air All of these Provides higher thermal efficiency & flame temperature Provides better control of furnace temperature ANSWER DOWNLOAD EXAMIANS APP
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