Which is an advantage of using watertight...

Question 1 / 2707066636eec28f7522a1c51bfa0

Question 1 of 2707066636eec28f7522a1c51bfa0

Which is an advantage of using watertight longitudinal divisions in double bottom tanks?

Question 1 of 27070

Which is an advantage of using watertight longitudinal divisions in double bottom tanks?

🔍 Key Concepts

• Free surface effect in tanks and how it affects stability (GM) • Difference between longitudinal and transverse bulkheads/divisions in tanks • Relationship between tank subdivisions and vessel stability/rolling

💭 Think About

• When a tank is only partly filled, what happens to the liquid when the ship heels? How does this affect stability? • How does dividing a tank in the longitudinal direction change the way liquid can move from side to side? • Which of these options directly relates to controlling the movement of liquid inside the tank, rather than changing basic hull structure or weights?

✅ Before You Answer

• Identify which option is specifically about liquid movement in tanks rather than hull strength or global ship motions • Recall that free surface effect reduces GM (initial stability). Which choice is tied to reducing that effect? • Verify whether adding longitudinal watertight divisions would actually increase or decrease weight and whether it would realistically change the rolling period directly.

Question 1 of 27070

Which is an advantage of using watertight longitudinal divisions in double bottom tanks?

Lowers the center of buoyancy without decreasing GM

Cuts down free surface effect

Increases the rolling period

Decreases weight because extra stiffeners are unneeded

Question 1 / 2707066636eec28f7522a1c51bfa0

Question 1 of 2707066636eec28f7522a1c51bfa0

Which is an advantage of using watertight longitudinal divisions in double bottom tanks?

Back

Question 1 of 27070

Which is an advantage of using watertight longitudinal divisions in double bottom tanks?