Steam Boilers, Engines, Nozzles and Turbines Efficiency of Rankine cycle can be increased by Decreasing exhausts pressure Increasing the expansion ratio Decreasing initial steam pressure and temperature Increasing exhaust pressure Decreasing exhausts pressure Increasing the expansion ratio Decreasing initial steam pressure and temperature Increasing exhaust pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is required for a steam condensing plant? Air extraction pump All of these Condensate pump Condenser Air extraction pump All of these Condensate pump Condenser ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The theoretical indicator diagram of a simple steam engine is based upon the assumption that The expansion (or compression) of the steam is hyperbolic Steam is admitted at boiler pressure and exhausted at condenser pressure There is no pressure drop due to condensation All of these The expansion (or compression) of the steam is hyperbolic Steam is admitted at boiler pressure and exhausted at condenser pressure There is no pressure drop due to condensation All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor depends upon All of these Turbine stage efficiency Exit pressure Initial pressure and superheat All of these Turbine stage efficiency Exit pressure Initial pressure and superheat ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler H.P. is defined as the Steam evaporation rate per kg of fuel fired Work done by 1 kg of steam at saturation condition Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam Steam evaporation rate per kg of fuel fired Work done by 1 kg of steam at saturation condition Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Tertiary air is the air used to Cool the scanners Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Provide air around burners for obtaining optimum combustion Cool the scanners Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Provide air around burners for obtaining optimum combustion ANSWER DOWNLOAD EXAMIANS APP
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