Steam Boilers, Engines, Nozzles and Turbines The high steam and low water safety valve is used to blow off steam when the Water level in the boiler becomes too low Steam pressure exceeds the working pressure None of these Both (A) and (B) Water level in the boiler becomes too low Steam pressure exceeds the working pressure None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the moving blades, Pressure and velocity both decreases Pressure increases while velocity decreases Pressure decreases while velocity increases Pressure and velocity both increases Pressure and velocity both decreases Pressure increases while velocity decreases Pressure decreases while velocity increases Pressure and velocity both increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The compounding of turbines is done in order to Improve efficiency Reduce exit losses Reduce speed of rotor All of these Improve efficiency Reduce exit losses Reduce speed of rotor All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are those in which Tubes are laid vertically Flue gases pass through tubes and water around it Water passes through the tubes and flue gases around it Forced circulation takes place Tubes are laid vertically Flue gases pass through tubes and water around it Water passes through the tubes and flue gases around it Forced circulation takes place ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) sin²α tan²α cot²α cos²α sin²α tan²α cot²α cos²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially superheated steam is __________ as compared to initially dry saturated steam. None of these More Less Same None of these More Less Same ANSWER DOWNLOAD EXAMIANS APP
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