Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 24 18 12 6 24 18 12 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens None of these Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal Produces larger size coke None of these Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal Produces larger size coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the Incomplete combustion None of these High oxygen in flue gas Complete combustion Incomplete combustion None of these High oxygen in flue gas Complete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. Moisture Ash None of these Sulphur & phosphorus Moisture Ash None of these Sulphur & phosphorus ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature decreases progressively from anthracite to lignite, because Carbon content decreases Moisture content increases Volatile matter content increases Ash content increases Carbon content decreases Moisture content increases Volatile matter content increases Ash content increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. 95-100 60-65 3-5 25-30 95-100 60-65 3-5 25-30 ANSWER DOWNLOAD EXAMIANS APP
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