Steam Boilers, Engines, Nozzles and Turbines The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water temperature is called Boiler efficiency Vacuum efficiency Condenser efficiency Nozzle efficiency Boiler efficiency Vacuum efficiency Condenser efficiency Nozzle efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The selection of type and size of a steam boiler depends upon The geographical position of the power house All of these The power required and working pressure The fuel and water available The geographical position of the power house All of these The power required and working pressure The fuel and water available ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an ideal impulse turbine, the Relative velocity at the inlet of the moving blade is equal to that at the outlet Axial velocity at inlet is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet Absolute velocity at the inlet of moving blade is equal to that at the outlet Relative velocity at the inlet of the moving blade is equal to that at the outlet Axial velocity at inlet is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet Absolute velocity at the inlet of moving blade is equal to that at the outlet ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in a Scotch marine boiler are None of the listed here Inclined Horizontal Vertical None of the listed here Inclined Horizontal Vertical 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) None of the listed here ηS = ηB × ηN ηS = ηB / ηN ηS = ηN / ηB None of the listed here ηS = ηB × ηN ηS = ηB / ηN ηS = ηN / ηB ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser is installed in a boiler primarily to All of the listed here Superheat the steam Reduce fuel consumption Increase steam pressure All of the listed here Superheat the steam Reduce fuel consumption Increase steam pressure ANSWER DOWNLOAD EXAMIANS APP
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