Steam Boilers, Engines, Nozzles and Turbines An air preheater All of these Increases the efficiency of the boiler Enables low grade fuel to be burnt Increases evaporative capacity of the boiler All of these Increases the efficiency of the boiler Enables low grade fuel to be burnt Increases evaporative capacity of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam turbines may be classified according to Direction of steam flow Mode of steam action Number of stages All of these Direction of steam flow Mode of steam action Number of stages All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The saturation temperature of steam with increase in pressure increases Slowly first and then rapidly Linearly Inversely Rapidly first and then slowly Slowly first and then rapidly Linearly Inversely Rapidly first and then slowly 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 When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as Internally fired boiler Natural circulation boiler Forced circulation boiler Externally fired boiler Internally fired boiler Natural circulation boiler Forced circulation boiler Externally fired boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Feed water conditioning in thermal power plants in done to Increase heat transfer rate Increase efficiency of thermal power plant Reduce hardness and for removal of solids Increase steam parameters Increase heat transfer rate Increase efficiency of thermal power plant Reduce hardness and for removal of solids Increase steam parameters ANSWER DOWNLOAD EXAMIANS APP
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