In a 50 % reaction axial compressor stage, the local blade velocity is 300 m/s and the axial
component of velocity is 100 m/s. If the absolute inlet flow angle α1 = 45o, the work per unit mass
done on the fluid by the stage in kJ/kg is
(A) 30 (B) 40 (C) 50 (D) 60
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2013 Q.46)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Structural Mechanics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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