The efficiency of jet propulsion with inlet orifices at right angles to the direction of motion of ship is given by

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📊 Fluid Mechanics and Hydraulic Machines

Q. The efficiency of jet propulsion with inlet orifices at right angles to the direction of motion of ship is given by

(A) 2u/ (V + u)
(B) 2V/ (V + u) 2
(C) 2Vu/ (V + u) 2
(D) 2u (V-u)/V3

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✅ Correct Answer: (B) 2V/ (V + u) 2

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