Fuels and Combustion Increase in ash content of blast furnace coke Increases its consumption in the furnace Reduces its consumption in the furnace Does not affect its consumption in the furnace Decreases its hardness and abrasion resistance Increases its consumption in the furnace Reduces its consumption in the furnace Does not affect its consumption in the furnace Decreases its hardness and abrasion resistance ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a micro component present in coal? Clarain Fusinite Liptinite Micrinite Clarain Fusinite Liptinite Micrinite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains Greater percentage of ash All of these Less volatile matter More carbon Greater percentage of ash All of these Less volatile matter More carbon ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sample of natural gas containing 80% methane (CH₄) and rest nitrogen (N₂) is burnt with 20% excess air. With 80% of the combustibles producing CO₂ and the reminder going to CO, the Orsat analysis in volume percent is CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O) ? Blast furnace coke Anthracite coal Low temperature coke Sub-bituminous coal Blast furnace coke Anthracite coal Low temperature coke Sub-bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain H₂O CO₂ CO Both B & C H₂O CO₂ CO Both B & C ANSWER DOWNLOAD EXAMIANS APP
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