Fuels and Combustion The pyragallol solution used in orsat apparatus can absorb All of these Both O₂ and CO Both O₂ and CO₂ Only O₂ All of these Both O₂ and CO Both O₂ and CO₂ Only O₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sometimes water is sprayed during coal charging in the coke oven, which helps in Controlling the dust nuisance while charging the coal Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂) Prevention of clinker formation in the oven All of these Controlling the dust nuisance while charging the coal Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂) Prevention of clinker formation in the oven All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Mineral matter Adhering impurities Both B and C Inherent impurities Mineral matter Adhering impurities Both B and C Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is stripped of its H₂S and mercaptans content by Adsorption on bog iron bed Bubbling it through dilute sulphuric acid Absorption in wash oil Adsorption on silica gel Adsorption on bog iron bed Bubbling it through dilute sulphuric acid Absorption in wash oil Adsorption on silica gel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be Infinitely long 200 meters More than 105.7 metres Equal to the height of the hot gas column producing draught Infinitely long 200 meters More than 105.7 metres Equal to the height of the hot gas column producing draught ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Undercharging of coal in the by-product coke ovens results in 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 No change in the c.v. of coke oven gas Decrease in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
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