Aerospace Engineering > GATE 2018 > Jet Engines
An aircraft with a turbojet engine flies at a velocity of 100 m/s. If the jet exhaust velocity is 300 m/s, the propulsive efficiency of the engine, assuming a negligible fuel-air ratio, is
A
0.33
B
0.50
C
0.67
D
0.80

Correct : b

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