Steam Boilers, Engines, Nozzles and Turbines During polytropic process All of these Heat transfer takes place across cylinder walls Work is done Steam may be wet, dry or superheated after expansion All of these Heat transfer takes place across cylinder walls Work is done Steam may be wet, dry or superheated after expansion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The actual vacuum in a condenser is equal to Barometric pressure - actual pressure Gauge pressure + atmospheric pressure Barometric pressure + actual pressure Gauge pressure - atmospheric pressure Barometric pressure - actual pressure Gauge pressure + atmospheric pressure Barometric pressure + actual pressure Gauge pressure - atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum discharge of steam through a convergent-divergent nozzle depends upon Both (A) and (B) Area of nozzle at throat Final pressure of steam leaving the nozzle Initial pressure and volume of steam Both (A) and (B) Area of nozzle at throat Final pressure of steam leaving the nozzle Initial pressure and volume of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum steam pressure in a Locomotive boiler is limited to 0.18 MN/m² 180 MN/m² 18 MN/m² 1.8 MN/m² 0.18 MN/m² 180 MN/m² 18 MN/m² 1.8 MN/m² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following boiler is best suited to meet the fluctuating demand of steam? Cornish boiler Babcock and Wilcox boiler Lancashire boiler Locomotive boiler Cornish boiler Babcock and Wilcox boiler Lancashire boiler Locomotive boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s ANSWER DOWNLOAD EXAMIANS APP
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