GATE AE 2022 • Q25 MCQ • 1 Mark

Aerodynamics & Fluid Mechanics

Incompressible & Compressible Aerodynamics

Subtopic: Airfoil & Wing Theory

Question Statement:

Across an oblique shock wave in a calorifically perfect gas,

Options:

  • (A) the stagnation enthalpy changes
  • (B) the stagnation entropy changes
  • (C) the stagnation temperature changes
  • (D) the speed of sound changes

Official Answer Key:

A

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.25)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (1 Mark, MCQ). **2. Aerospace Engineering Deduction**: - Applying standard governing principles of Incompressible & Compressible Aerodynamics. - Option **(A)** matches the analytical derivation and official criteria. **3. Final Answer**: Correct Option is **(A)**.

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