The figure below shows the blading of the rotors of two different axial
turbomachines under their typical operating conditions, labelled as Configuration I
and Configuration II. Which of the following statements is/are TRUE?
Options:
(A) Configuration I corresponds to the rotor of a compressor and Configuration II
corresponds to the rotor of a turbine
(B) Configuration I corresponds to the rotor of a turbine and Configuration II
corresponds to the rotor of a compressor
(C) The rotor blades of the turbomachine in Configuration I move along the +𝜃
direction
(D) The rotor blades of the turbomachine in Configuration II move along the +𝜃
direction
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2026 Q.27)**
**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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