Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed None of these Before the superheater Before the economiser Between the economiser and chimney None of these Before the superheater Before the economiser Between the economiser and chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of whirl at outlet for an axial discharge turbine is Minimum Zero None of these Maximum Minimum Zero None of these Maximum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is 2 cos²α/(1 + cos²α) (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) (1 + cos²α)/2 cos²α 2 cos²α/(1 + cos²α) (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) (1 + cos²α)/2 cos²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The overall efficiency of thermal power plant is Boiler efficiency, turbine efficiency, generator efficiency All the three above plus gas cycle efficiency Regenerative cycle efficiency Carnot cycle efficiency Boiler efficiency, turbine efficiency, generator efficiency All the three above plus gas cycle efficiency Regenerative cycle efficiency Carnot cycle efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At very low temperature, the melting and boiling temperatures become equal. This temperature is 303°K 0°K 373°K 273.16°K 303°K 0°K 373°K 273.16°K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used to increase the temperature of saturated steam without raising its pressure, is called Superheater Blow off cock Stop valve Fusible plug Superheater Blow off cock Stop valve Fusible plug ANSWER DOWNLOAD EXAMIANS APP
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