What is the change in longitudinal moments...

Question 1 / 2066636ee728f7522a1c5176a1

Question 1 of 2066636ee728f7522a1c5176a1

What is the change in longitudinal moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?

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Question 1 of 20

66636ee728f7522a1c5176a1

What is the change in longitudinal moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?

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🔍 Key Concepts

• Moment = Weight × Distance from reference (LCG) for longitudinal moment calculations • Effect of discharging liquid from a tank on the vessel’s total weight and longitudinal moment • How to use tank sounding/percentage full tables on the Coastal Driller stability data sheet to find weight of liquid for a given depth change

💭 Think About

• First, think about whether discharging drill water will make the total longitudinal moment increase or decrease. What sign (positive or negative) should you expect? • How do you find the weight of 2.5 feet of drill water removed from tank 23 using the stability booklet or tank table? • Once you know the weight change, how do you combine it with the tank’s longitudinal position (LCG) to compute the change in longitudinal moment?

✅ Before You Answer

• Confirm the LCG (longitudinal center of gravity) or longitudinal position used for drill water tank 23 on the Coastal Driller plan or tank table • Verify the weight of 2.5 feet of drill water, not the total tank capacity, using the correct density and tank calibration • Check that the sign of your final moment change reflects that the weight is being removed (discharged), not added (loaded)

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Question 1 of 20

What is the change in longitudinal moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?

1,671 ft-kips

-161 ft-kips

-4,708 ft-kips

-20,052 ft-kips

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Question 1 / 2066636ee728f7522a1c5176a1

Question 1 of 2066636ee728f7522a1c5176a1

What is the change in longitudinal moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?

Back

Question 1 of 20

66636ee728f7522a1c5176a1

What is the change in longitudinal moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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

Quick actions

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