The maximum propulsive efficiency of a turbojet engine is at a...

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The maximum propulsive efficiency of a turbojet engine is at a speed of

A. 1000 km/h

B. 2000 km/h

C. 2400 km/h

D. 3000 km/h

Answer: Option C

The maximum propulsive efficiency of a turbojet engine is at a speed of 2400 km/h

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