The DEEP DRILLER is loaded as shown in the...

Question 1 of 2707066636ee728f7522a1c5178b3

The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new height of the center of gravity corrected for longitudinal free surface effects if the entire contents of Saltwater Ballast Tanks 1P and 1S are discharged?

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Question 1 of 27070

🔍 Key Concepts

• Center of gravity (KG) and how it changes when weight is removed low in the vessel • Effect of free surface on corrected KG (KGC) when tanks are slack vs. pressed up or empty • How to read and use the Sample Load Form #1 (Transit) to find existing KG and free surface data

💭 Think About

• When you discharge ballast from low tanks, does the ship’s KG increase or decrease? Think about where that weight was located vertically. • How does the free surface correction change when you go from slack tanks to empty tanks? Does the correction get larger or smaller? • Start from the original KG (before discharge), then apply the change due to weight removal and the change in free surface correction. Which combination of effects best matches one of the options?

✅ Before You Answer

• Verify the original KG and KGC from Sample Load Form #1 before any changes. • Calculate the moment change from removing ballast in 1P and 1S: (weight removed × vertical distance from keel) and apply it correctly to find the new KG. • Recalculate the free surface correction after the tanks are empty and apply it to get the new corrected KG before comparing with the choices.