GATE AE 2023 • Q21 MCQ • 1 Mark

Aerospace Structures

Structural Mechanics

Subtopic: Thin-Walled Shells & Buckling

Question Statement:

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

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.

Official Answer Key:

A

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2023 Q.21)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Structural Mechanics** under *Aerospace Structures* (1 Mark, MCQ). **2. Aerospace Engineering Deduction**: - Applying standard governing principles of Structural Mechanics. - Option **(A)** matches the analytical derivation and official criteria. **3. Final Answer**: Correct Option is **(A)**.

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