Steam Boilers, Engines, Nozzles and Turbines A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as Air-preheater Superheater Economizer Injector Air-preheater Superheater Economizer Injector ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following boiler is best suited to meet the fluctuating demand of steam? Babcock and Wilcox boiler Lancashire boiler Locomotive boiler Cornish boiler Babcock and Wilcox boiler Lancashire boiler Locomotive boiler Cornish boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Desecration of feed water is carried out because it reduces Heat transfer coefficient Cavitation of boiler feed pumps pH value of water Corrosion caused by oxygen Heat transfer coefficient Cavitation of boiler feed pumps pH value of water Corrosion caused by oxygen ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of injector used in small capacity boilers is to Inject chemical solution in feed pump Add make up water in the system Create vacuum Pump water, similar to boiler feed pump Inject chemical solution in feed pump Add make up water in the system Create vacuum Pump water, similar to boiler feed pump ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a safety valve is To blow off steam when the pressure of steam inside the boiler exceeds the working pressure To indicate the water level inside the boiler to an observer None of these To measure pressure of steam inside the steam boiler To blow off steam when the pressure of steam inside the boiler exceeds the working pressure To indicate the water level inside the boiler to an observer None of these To measure pressure of steam inside the steam boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Caking coals are those which Burn completely Burn freely Show little or no fusing action Form lumps or masses of coke Burn completely Burn freely Show little or no fusing action Form lumps or masses of coke ANSWER DOWNLOAD EXAMIANS APP
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