Fuels and Combustion Ratio of primary air to secondary air increases with increase in the rank of coal, because the High rank coals have higher amount of volatile matter Oxygen content progressively decreases Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases High rank coals have higher amount of volatile matter Oxygen content progressively decreases Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas comprises mainly of CO & N₂ CO₂ & N₂ CO & H₂ CO₂ & H₂ CO & N₂ CO₂ & N₂ CO & H₂ CO₂ & H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases is heavier than air? Natural gas Coke oven gas Water gas Blast furnace gas Natural gas Coke oven gas Water gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum percentage of CO₂ in a flue gas (from a carbonaceous fuel) can be 29 21 79 77 29 21 79 77 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to All of these Storage in large heaps with small surface to volume ratio Inadequate ventilation Low temperature oxidation All of these Storage in large heaps with small surface to volume ratio Inadequate ventilation Low temperature oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A particular coal is said to be free burning when it Burns completely Gives smokeless burning None of these Shows little or no fusing action Burns completely Gives smokeless burning None of these Shows little or no fusing action ANSWER DOWNLOAD EXAMIANS APP
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