Fuels and Combustion The cooling medium used in dry quenching of coke is Air Carbon dioxide Nitrogen Phenolic water Air Carbon dioxide Nitrogen Phenolic water ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When the coal is heated in absence of air, it is called its Coalification Carbonisation Deoxidation Gasification Coalification Carbonisation Deoxidation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficient burning of anthracite coal requires Low preheat of air High excess air Fine grinding All of these Low preheat of air High excess air Fine grinding All of these 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 Causes brittleness in steel Decreases the abrasion resistance of coke None of these Decreases the hardness of coke Causes brittleness in steel Decreases the abrasion resistance of coke None of these 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 BaSO₄ & NaCl MgSO₄ & BaCl₂ MgCO₃ & NaCl MgO & Na₂CO₃ BaSO₄ & NaCl MgSO₄ & BaCl₂ MgCO₃ & NaCl ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Does not affect the flame length Tends to shorten the flame Increases the flame temperature Lengthens the flame Does not affect the flame length Tends to shorten the flame Increases the flame temperature Lengthens the flame ANSWER DOWNLOAD EXAMIANS APP
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