Steam Boilers, Engines, Nozzles and Turbines Efficiency of Rankine cycle can be increased by Decreasing exhausts pressure Increasing exhaust pressure Increasing the expansion ratio Decreasing initial steam pressure and temperature Decreasing exhausts pressure Increasing exhaust pressure Increasing the expansion ratio Decreasing initial steam pressure and temperature ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blade velocity coefficient is unity Blades are equiangular and frictionless Blade solidity is 0.65 Blades are equiangular Blade velocity coefficient is unity Blades are equiangular and frictionless Blade solidity is 0.65 Blades are equiangular ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as Injector Pressure gauge Feed pump Feed check valve Injector Pressure gauge Feed pump Feed check valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A safety valve usually employed with stationary boilers is Lever safety valve All of the listed here Dead weight safety valve High steam and low water safety valve Lever safety valve All of the listed here Dead weight safety valve High steam and low water safety valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hygrometry deals with the Water vapor in air Hygroscopic substances Temperature of air Pressure of air Water vapor in air Hygroscopic substances Temperature of air Pressure of air ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Reheating of steam in a turbine Reduces wear on the blades All of these Increases the work-done through the turbine Increases the efficiency of the turbine Reduces wear on the blades All of these Increases the work-done through the turbine Increases the efficiency of the turbine ANSWER DOWNLOAD EXAMIANS APP
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