Fuels and Combustion Low temperature oxidation of coal resulting from bad storage conditions does not decrease its Hydrogen content Calorific value Caking power Oxygen content Hydrogen content Calorific value Caking power Oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Bituminous coal High temperature coke (V.M < 0.5%) Anthracite Lignite Bituminous coal High temperature coke (V.M < 0.5%) Anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Neither A nor B Both A & 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 Neither A nor B Both A & B Because, it alone produces unreactive coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Unsaturated hydrocarbons Methane Hydrogen All of these Unsaturated hydrocarbons Methane Hydrogen All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which is the heaviest fuel gas out of the following? Carburetted water gas Water gas Blast furnace gas Coke oven gas Carburetted water gas Water gas Blast furnace gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following coal gasification processes will produce gas having maximum methane content? All of these Winkler process Lurgi process Kopper-Totzek process All of these Winkler process Lurgi process Kopper-Totzek process ANSWER DOWNLOAD EXAMIANS APP
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