Fuels and Combustion With increase in moisture content of coal, its Clinkering tendency during combustion increases Calorific value increases sometimes None of these Bulk density always decreases Clinkering tendency during combustion increases Calorific value increases sometimes None of these Bulk density always decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm³ gas ? Natural gas Producer gas Water gas Blast furnace gas Natural gas Producer gas Water gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Sinter making Iron blast furnace Cupola in foundaries Domestic ovens Sinter making Iron blast furnace Cupola in foundaries Domestic ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle Should have low fusion point of its ash Should have high porosity Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle Should have low fusion point of its ash Should have high porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal containing large quantity of __________ are difficult to wash. Inherent mineral matter Volatile matter Free impurities Ash Inherent mineral matter Volatile matter Free impurities Ash 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 High sulphur content in the fuel Low calorific value of the fuel Presence of large quantity of hydrogen in the fuel Lack of thorough mixing of fuel with air High sulphur content in the fuel Low calorific value of the fuel Presence of large quantity of hydrogen in the fuel ANSWER DOWNLOAD EXAMIANS APP
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