Fuels and Combustion A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place 21% excess air has been used for combustion No excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place 21% excess air has been used for combustion No excess air has been used for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cooling medium used in dry quenching of coke is Carbon dioxide Phenolic water Air Nitrogen Carbon dioxide Phenolic water Air Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain Both B & C CO CO₂ H₂O Both B & C CO CO₂ H₂O ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of MgO & Na₂CO₃ MgSO₄ & BaCl₂ BaSO₄ & NaCl MgCO₃ & NaCl MgO & Na₂CO₃ MgSO₄ & BaCl₂ BaSO₄ & NaCl MgCO₃ & NaCl ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the hardness of coke None of these Decreases the abrasion resistance of coke Causes brittleness in steel Decreases the hardness of coke None of these Decreases the abrasion resistance of coke Causes brittleness in steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzol is used Neither A nor B Both A & B For producing benzene, tolune & xylene by its distillation As a motor fuel blend Neither A nor B Both A & B For producing benzene, tolune & xylene by its distillation As a motor fuel blend ANSWER DOWNLOAD EXAMIANS APP
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