Which of the following actions, pertaining...

Which of the following actions, pertaining...

Question 1 of 270705eccefa1bacbc34ba4d47179

Which of the following actions, pertaining to saltwater lubricated stern tube stuffing boxes, is usually observed when the ship is expected to be in port for an extended period?

Question 1 of 27070

Q

Which of the following actions, pertaining to saltwater lubricated stern tube stuffing boxes, is usually observed when the ship is expected to be in port for an extended period?

🔍 Key Concepts

• Saltwater-lubricated stern tube stuffing box function and purpose • Effects of long idle periods in port on shaft, packing, and corrosion • Normal vs. special procedures for in-port lay-up compared to underway operation

💭 Think About

• Ask yourself: When the shaft is not turning for a long time, what is the biggest risk to the stern tube and packing: overheating, leakage, or corrosion? • Which option describes a condition you would want to maintain for days or weeks without constant attendance by the watch? • Think about what continuous flushing or tightening would do to stationary packing and shaft surfaces over a long period.

✅ Before You Answer

• Verify which action minimizes risk of shaft scoring or packing damage when the shaft is not rotating. • Check which choice would most likely prevent seawater from entering the ship if something fails while unattended. • Consider which action is normally taken only when the ship is operating or shortly after stopping, versus a condition you’d leave it in for an extended lay-up.