Some vessels are equipped with a water lubricated stern tube. When at sea, operating under normal conditions, the water service valve from the ship's saltwater system to the bearing should be __________.

Question

Accepted Answer

closed, and only slight leakage permitted across the shaft packing

Answer

closed, and no leakage permitted across the shaft packing

Answer

open, and no leakage permitted across the shaft packing

Answer

open, and only slight leakage permitted across the shaft packing

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