Steam Boilers, Engines, Nozzles and Turbines In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts. and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is 0.8 0.25 0.5 0.4 0.8 0.25 0.5 0.4 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following gases has the highest calorific value? Producer gas Blast furnace gas Coal gas Water gas Producer gas Blast furnace gas Coal gas Water gas ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The evaporation of 15.653 kg of water per hour from and at 100°C is called Equivalent evaporation Evaporative capacity One boiler h.p. Factor of evaporation Equivalent evaporation Evaporative capacity One boiler h.p. Factor of evaporation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηB × ηN ηS = ηN / ηB ηS = ηB / ηN None of the listed here ηS = ηB × ηN ηS = ηN / ηB ηS = ηB / ηN None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The condition of steam in boiler drum is always Saturated Wet Dry Supersaturated Saturated Wet Dry Supersaturated ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines It is required to produce large amount of steam at low pressure. Which boiler should be used? Lancashire boiler Pulverized fuel fired boiler Cochran boiler Babcock and Wilcox boiler Lancashire boiler Pulverized fuel fired boiler Cochran boiler Babcock and Wilcox boiler ANSWER DOWNLOAD EXAMIANS APP
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