Fuels and Combustion As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air. Remains same Increases Decreases May increase or decrease depending on the type of fuel Remains same Increases Decreases May increase or decrease depending on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Gobar gas Carburetted water gas Coke oven gas LPG Gobar gas Carburetted water gas Coke oven gas LPG 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 high porosity Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle Should have high porosity Should have low fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal containing large quantity of __________ are difficult to wash. Inherent mineral matter Ash Free impurities Volatile matter Inherent mineral matter Ash Free impurities Volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Calorific value Neither A nor B Both A & B Caking power Calorific value Neither A nor B Both A & B Caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as CO SO₂ O₂ N₂ CO SO₂ O₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
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