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

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Question 1 of 2066636ee728f7522a1c5178b8

The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (transit). What is the new metacentric height corrected for transverse free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? (Use KMT = 375.38 feet)

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Question 1 of 20

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🔍 Key Concepts

• Metacentric height (GM) relationship: GM = KM − KG • Effect of discharging ballast on KG (center of gravity height) and displacement • How to apply free surface correction (FSC) to adjust GM for slack tanks

💭 Think About

• From the Sample Load Form #1 (transit), determine the original GM and KG before any ballast is discharged. How does removing the weight in Tanks 1P and 1S change KG and total displacement? • Think about whether discharging these low, wing ballast tanks will raise or lower KG. After you adjust KG, how do you then apply the transverse free surface correction to find the corrected GM? • Compare your final corrected GM with KMT = 375.38 ft. Should the corrected GM be larger or smaller than KMT, and by roughly how much given the size and location of the ballast tanks?

✅ Before You Answer

• Verify you are using GM = KMT − KG(corrected) after applying the free surface correction, not before. • Confirm that you have removed both the weight and the free surface moment of Tanks 1P and 1S when they are fully discharged (no slack). • Double‑check that you recompute the new displacement and use the correct moment/weight to find the new KG before applying the free surface correction.

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