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MEO Class II – NAVAL : 2023/NOV/09

Question

Q9. A. Define hull efficiency and propeller efficiency. (6)

b. When a propeller of 4.8 m pitch turns at 110 rpm, the apparent slip is found to be —S % and the real slip is 1.5 S %. If the wake speed is 25 % of the ship speed, calculate the ship speed, apparent slip and the real slip. (10)

Asked in Year/Month/Ques No.

2023/NOV/09

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