While the COASTAL DRILLER is in a normal...

Question 1 / 2066636ee728f7522a1c517742

Question 1 of 2066636ee728f7522a1c517742

While the COASTAL DRILLER is in a normal transit, the roll period is 9 seconds. What is the limiting angle of roll which does not exceed the design limits of the legs?

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Question 1 of 20

66636ee728f7522a1c517742

While the COASTAL DRILLER is in a normal transit, the roll period is 9 seconds. What is the limiting angle of roll which does not exceed the design limits of the legs?

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🔍 Key Concepts

• Roll period and stability relationship for mobile offshore drilling units (MODUs) like COASTAL DRILLER • Manufacturer or design operating limits for leg stresses vs. roll angle • How longer vs. shorter roll periods generally relate to allowable roll angles in design guidance tables

💭 Think About

• How would a 9‑second roll period compare to a very quick, snappy roll in terms of leg stresses and comfort? Would that suggest a very small or somewhat moderate limiting roll angle? • If you imagine the design engineers establishing a safe operating envelope, would they likely allow a large, medium, or very small roll angle before reaching leg design limits during normal transit? • Look at the answer choices: which angle best matches a conservative but still practical limit for leg stresses on a jack‑up in transit with a 9‑second roll period?

✅ Before You Answer

• Verify what typical limiting roll angles for jack‑up leg design are in transit conditions for the exam references you are using (often provided in tables or curves). • Check whether the exam materials link specific roll periods (e.g., 7 s, 9 s, 11 s) to particular limiting roll angles. • Confirm that the option you choose reflects a conservative design limit, not what might feel comfortable to people onboard.

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Question 1 of 20

While the COASTAL DRILLER is in a normal transit, the roll period is 9 seconds. What is the limiting angle of roll which does not exceed the design limits of the legs?

11°

9°

7°

5°

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Question 1 / 2066636ee728f7522a1c517742

Question 1 of 2066636ee728f7522a1c517742

While the COASTAL DRILLER is in a normal transit, the roll period is 9 seconds. What is the limiting angle of roll which does not exceed the design limits of the legs?

Back

Question 1 of 20

66636ee728f7522a1c517742

While the COASTAL DRILLER is in a normal transit, the roll period is 9 seconds. What is the limiting angle of roll which does not exceed the design limits of the legs?

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

— No credit card needed