Steam Boilers, Engines, Nozzles and Turbines The function of injector used in small steam plants is to Create vacuum at turbine exhaust Pump feed water Create vacuum in furnace Dose chemicals in feed water Create vacuum at turbine exhaust Pump feed water Create vacuum in furnace Dose chemicals in feed water ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The principal function of a stop valve is to Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Increase the temperature of saturated steam without raising its pressure Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Increase the temperature of saturated steam without raising its pressure 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 None of the listed here ηS = ηB / ηN ηS = ηN / ηB ηS = ηB × ηN None of the listed here ηS = ηB / ηN ηS = ηN / ηB ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The discharge is __________ at critical pressure. Zero None of these Minimum Maximum Zero None of these Minimum Maximum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is To prepare heat balance sheet for the boiler All of these To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler To prepare heat balance sheet for the boiler All of these To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A safety valve mainly used with locomotive and marine boilers is Spring loaded safety valve High steam and low water safety valve Dead weight safety valve Lever safety valve Spring loaded safety valve High steam and low water safety valve Dead weight safety valve Lever safety valve ANSWER DOWNLOAD EXAMIANS APP
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