Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is (1 + cos²α)/2 cos²α (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + cos²α)/2 cos²α (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off governing of steam engines is a method of controlling the engine output by varying All of these Volume of intake steam Temperature of intake steam Pressure of intake steam All of these Volume of intake steam Temperature of intake steam Pressure of intake steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The expansion of steam, as it flows over the blades in reaction turbine, represents Isothermal process Throttling process Isentropic process Free expansion process Isothermal process Throttling process Isentropic process Free expansion process ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a boiler, the heat is lost To steam formed by combustion of hydrogen per kg of fuel All of these In moisture present in the fuel To dry flue gases To steam formed by combustion of hydrogen per kg of fuel All of these In moisture present in the fuel To dry flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The variation of steam pressure in the nozzle depends upon Dryness fraction of steam All of these Specific volume of steam Velocity of steam Dryness fraction of steam All of these Specific volume of steam Velocity of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about effect of sulphur in fuel? It erodes furnace walls It helps in electrostatic precipitation of ash in flue gases It has heating value It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low It erodes furnace walls It helps in electrostatic precipitation of ash in flue gases It has heating value It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low ANSWER DOWNLOAD EXAMIANS APP
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