An axial compressor that generates a stagnation pressure ratio of 4.0, operates with inlet and
exit stagnation temperatures of 300 K and 480 K, respectively. If the ratio of specific heats
(𝛾) is 1.4, the isentropic efficiency of the compressor is
(A) 0.94 (B) 0.81
(C) 0.72 (D) 0.63
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2018 Q.34)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (1 Mark, 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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