Fuels and Combustion Too much of excess air in combustion results in high All of these Fuel consumption for the same heat load Percentage of oxygen in flue gases Stack gas temperature All of these Fuel consumption for the same heat load Percentage of oxygen in flue gases Stack gas temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Is non-coking Contains more than 90% fussain Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Is non-coking Contains more than 90% fussain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases has the highest calorific value ? Liquefied petroleum gas (LPG) Natural gas Sewage gas Coal bed methane (CBM) Liquefied petroleum gas (LPG) Natural gas Sewage gas Coal bed methane (CBM) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Natural draft created by the chimney depends upon Temperature of the flue gas Its height Neither A nor B Both A & B Temperature of the flue gas Its height Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Does not alter its calorific value Is not possible on commerical scale Increases its calorific value Decreases its calorific value Does not alter its calorific value Is not possible on commerical scale Increases its calorific value Decreases its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Clinkering tendency Coking tendency Caking tendency Size stability Clinkering tendency Coking tendency Caking tendency Size stability ANSWER DOWNLOAD EXAMIANS APP
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