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 Y 1.05 y 0.95 y 1.8 y Y 1.05 y 0.95 y 1.8 y ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product recovered in a high temperature coal carbonisation plant? Pitch-cresosote mixture (PCM) Benzol Napthalene Ethylene Pitch-cresosote mixture (PCM) Benzol Napthalene Ethylene ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 1100 750 500 950 1100 750 500 950 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coking of coal, the ash content (percentage) Increases Decreases Remains constant None of these Increases Decreases Remains constant None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Caking index Both B and C Mineral matter content Ash content Caking index Both B and C Mineral matter content Ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature decreases progressively from anthracite to lignite, because Volatile matter content increases Ash content increases Moisture content increases Carbon content decreases Volatile matter content increases Ash content increases Moisture content increases Carbon content decreases ANSWER DOWNLOAD EXAMIANS APP
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