GATE_AE_2027_MOCK_05_Q29 GATE 2027 Aerospace Engineering All-India Master Mock 05 (High-Yield Comprehensive Grand Finale) MCQ · 1 Mark
Propulsion • Compressors and Turbines • Centrifugal & Axial Compressors

Compressor surge is a violent dynamic instability characterized by:

(A) Complete breakdown of flow and massive periodic axial flow reversal through the entire compressor
(B) Steady axisymmetric flow acceleration
(C) Local localized blade vibration without any pressure fluctuation
(D) Instant combustion extinguishing without pressure pulse
Answer Key:
A

Step-by-Step Verified Solution

### Solution: Surge is a system-wide longitudinal aerodynamic instability where the entire compressor suffers massive cyclic flow oscillations and complete flow reversal. Correct: A.
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