Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Burn CO to CO₂ Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner Burn CO to CO₂ Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Orsat apparatus is meant for Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride Gravimetric analysis of flue gas Finding out combustion efficiency None of these Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride Gravimetric analysis of flue gas Finding out combustion efficiency None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the Flame temperature Scale losses of the furnace stock Calorific value of the fuel None of these Flame temperature Scale losses of the furnace stock Calorific value of the fuel None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio All of these Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to Minimise its corrosion Make it look attractive None of these Avoid radiation heat loss Minimise its corrosion Make it look attractive None of these Avoid radiation heat loss ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest flame velocity? C₂H₆ H₂ CO CH₄ C₂H₆ H₂ CO CH₄ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS