Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most poisonous gas? L.D. converter gas Producer gas Blast furnace gas Coke oven gas L.D. converter gas Producer gas Blast furnace gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Undercharging of coal in the by-product coke ovens results in No change in the c.v. of coke oven gas Decrease in the c.v. of coke oven gas Increase in its throughput Increase in the c.v. of coke oven gas No change in the c.v. of coke oven gas Decrease in the c.v. of coke oven gas Increase in its throughput Increase in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of furnace oil is about __________ Kcal/kg. 15000 5000 10000 20000 15000 5000 10000 20000 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) ? Sub-bituminous coal Anthracite coal Blast furnace coke Low temperature coke Sub-bituminous coal Anthracite coal Blast furnace coke Low temperature coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec. 50 500 0.5 10 50 500 0.5 10 ANSWER DOWNLOAD EXAMIANS APP
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