Steam Boilers, Engines, Nozzles and Turbines Desecration of feed water is carried out because it reduces Corrosion caused by oxygen pH value of water Heat transfer coefficient Cavitation of boiler feed pumps Corrosion caused by oxygen pH value of water Heat transfer coefficient Cavitation of boiler feed pumps ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The basic purpose of drum in boiler is to Separate steam from water Serve as storage of steam Serve as storage of feed water for water wall Remove salts from water Separate steam from water Serve as storage of steam Serve as storage of feed water for water wall Remove salts from water ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by 10 to 15% 40 to 60% 15 to 25% 25 to 40% 10 to 15% 40 to 60% 15 to 25% 25 to 40% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum discharge through a chimney occurs when the height of chimney is Equal to the height of the hot gas column producing draught Around 200 meters Infinitely long Outside temperature is very low Equal to the height of the hot gas column producing draught Around 200 meters Infinitely long Outside temperature is very low ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become Dry Remain dry saturated Wet Superheated Dry Remain dry saturated Wet Superheated ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The feed check valve is used in order to Check level of water in boiler drum Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Recirculate unwanted feed water Check level of water in boiler drum Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Recirculate unwanted feed water ANSWER DOWNLOAD EXAMIANS APP
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