Fuels and Combustion Dry air requirement for burning 1 Nm³ of CO to CO₂ may be around __________ Nm³. 0.87 1.75 2.4 11.4 0.87 1.75 2.4 11.4 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Is less liable to spontaneous combustion on storage Requires smaller combustion space and less secondary air None of these Is more difficult to ignite and produces a shorter flame Is less liable to spontaneous combustion on storage Requires smaller combustion space and less secondary air None of these Is more difficult to ignite and produces a shorter flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Caking index Yield of carbonised products Calorific value Friability & oxygen content Caking index Yield of carbonised products Calorific value Friability & oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Artificial draught produced by a fan can be controlled by the All of these Variation in the pitch of the fan blades Speed of the fan Damper All of these Variation in the pitch of the fan blades Speed of the fan Damper 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 1.8 y 0.95 y 1.05 y Y 1.8 y 0.95 y 1.05 y Y ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product fuel? Petrol Pitch Refinery gas Blast furnace gas Petrol Pitch Refinery gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
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