Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation Neither A nor B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Both A & B Neither A nor B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is removed from coke oven gas by None of these Absorbing in vetro-coke solution Scrubbing with wash oil (a petroleum product) Adsorbing on bog iron bed None of these Absorbing in vetro-coke solution Scrubbing with wash oil (a petroleum product) Adsorbing on bog iron bed ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the Lack of thorough mixing of fuel with air Low calorific value of the fuel High sulphur content in the fuel Presence of large quantity of hydrogen in the fuel Lack of thorough mixing of fuel with air Low calorific value of the fuel High sulphur content in the fuel Presence of large quantity of hydrogen in the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of cown dung. Hydrogenation None of these Oxidation Fermentation Hydrogenation None of these Oxidation Fermentation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Abradability Agglutinating properties Swelling characteristics Resistance to impact breakage Abradability Agglutinating properties Swelling characteristics Resistance to impact breakage ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be 23 42.9 47.3 27.6 23 42.9 47.3 27.6 ANSWER DOWNLOAD EXAMIANS APP
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