The 3rd engineer on watch reports than the...

Study

Question 1 of 205eccef9fbacbc34ba4d46a14

The 3rd engineer on watch reports than the ship has an erratic rolling behavior and it does not appear to stabilize at an even keel position. As Chief Engineer, after consultation with the Chief Mate, what instruction would you give him?

Back

Question 1 of 20

5eccef9fbacbc34ba4d46a14

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Transverse stability and metacentric height (GM) and how they affect rolling period and behavior • Difference between list (permanent lean due to off-center weight) and loll (dangerous unstable condition with small or negative GM) • How adding or removing ballast in centerline vs. wing tanks changes stability and GM

💭 Think About

• Is the behavior described more like a normal list or a potentially dangerous condition of low or negative GM? How would the ship’s rolling feel in each case? • What effect does putting weight high and off the centerline have on GM and rolling, compared with putting weight low on the centerline? • Which action would generally increase GM and help the ship return more quickly and firmly to an upright position after rolling?

✅ Before You Answer

• Identify whether the ship is likely suffering from too little GM (tender ship) based on the description of erratic, slow, or large rolling that doesn’t feel stable. • Review how centerline double bottom ballast affects stability compared to wing tanks—especially in relation to free surface effect and transverse stability. • Confirm which option would most likely increase GM and improve stability, rather than reduce GM or create/ worsen a list.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed