GATE_AE_2027_MOCK_05_Q27 GATE 2027 Aerospace Engineering All-India Master Mock 05 (High-Yield Comprehensive Grand Finale) NAT · 1 Mark
Propulsion • Thermodynamic Cycles of Gas Turbines • Turbojet and Turbofan Performance

A turbojet flies at V_0 = 250 m/s. The core exhaust velocity is V_e = 750 m/s. What is the propulsive efficiency \eta_p? (Round to two decimal places).

Answer Key:
0.50

Step-by-Step Verified Solution

### Solution: \eta_p = 2 V_0 / (V_0 + V_e) = (2 * 250) / (250 + 750) = 500 / 1000 = 0.50. Correct: 0.50.
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