Steam Boilers, Engines, Nozzles and Turbines In reaction turbines, the axial thrust is due to Pressure drop across the rotor Both (A) and (B) None of these Change in axial velocity Pressure drop across the rotor Both (A) and (B) None of these Change in axial velocity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Film boiling occurs at Atmospheric pressures Very low pressure Very high pressures Medium pressures Atmospheric pressures Very low pressure Very high pressures Medium pressures ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially wet steam is 0.601 0.582 0.577 0.546 0.601 0.582 0.577 0.546 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are Externally fired Internally as well as externally fired None of these Internally fired Externally fired Internally as well as externally fired None of these Internally fired 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 160/3 m/s 640 m/s 640/3 m/s 320/3 m/s 160/3 m/s 640 m/s 640/3 m/s 320/3 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameters of fire tubes and superheater tubes in locomotive boiler are 24.5 mm, 65 mm 47.5 mm, 130 mm 65.5 mm, 210 mm 32.5 mm, 180 mm 24.5 mm, 65 mm 47.5 mm, 130 mm 65.5 mm, 210 mm 32.5 mm, 180 mm ANSWER DOWNLOAD EXAMIANS APP
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