Fuels and Combustion Which of the following fuel gases is heavier than air? Water gas Blast furnace gas Natural gas Coke oven gas Water gas Blast furnace gas Natural gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by Air None of these Oxygen enriched air Oxygen Air None of these Oxygen enriched air Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should have low fusion point of its ash Should be brittle Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should have low fusion point of its ash Should be brittle ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be 1.05 y Y 1.8 y 0.95 y 1.05 y Y 1.8 y 0.95 y ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lignite is Can be used for gasification and steam generation A high rank coal A coking coal A black banded coal which burns with a non-smoky yellowish flame Can be used for gasification and steam generation A high rank coal A coking coal A black banded coal which burns with a non-smoky yellowish flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Turndown ratio of a gas burner is equal to the Minimum to maximum heat input ratio Both A & B Maximum to minimum permissible gas flow rate Maximum to minimum heat input ratio Minimum to maximum heat input ratio Both A & B Maximum to minimum permissible gas flow rate Maximum to minimum heat input ratio ANSWER DOWNLOAD EXAMIANS APP
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