Compressors and Turbines

For a stage of a 50% reaction ideal axial flow compressor (symmetrical blading), select the correct statement from the options given.

Scientific schematic diagram reproduced from official IIT paper

Options:

• (A) The stagnation enthalpy rise across the rotor is 50% of the rise across the stage.
• (B) The static enthalpy rise across the rotor is 50% of the rise across the stage.
• (C) Axial velocity component of the flow at the rotor exit is 50% of that at the rotor entry.
• (D) The static pressure rise across the rotor is 50% of the rise across the stator.