The COASTAL DRILLER is loaded as shown in...

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Question 1 of 2066636ef128f7522a1c522620

The COASTAL DRILLER is loaded as shown in Sample Load Form #3 (Drilling). What would be the new sum of longitudinal moments for the liquid variables if the entire contents of drill water tank #17 are transferred to drill water tank #18?

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Question 1 of 20

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🔍 Key Concepts

• Longitudinal moment = weight × LCG (longitudinal center of gravity) for each tank • Effect of transferring liquid: remove weight and moment from the first tank, then add weight and moment to the second tank • The total liquid weight stays the same, but the total longitudinal moment usually changes when tanks are at different LCGs

💭 Think About

• From Sample Load Form #3, identify the weight and LCG of drill water tank #17 and tank #18, and the current sum of longitudinal moments for all liquid variables • Figure out how the sum of longitudinal moments changes when you empty tank #17 completely and add that same weight to tank #18 • Compare the old and new sums of longitudinal moments and see which multiple-choice value matches the recalculated total

✅ Before You Answer

• Be sure you are using the entire contents of tank #17 (not capacity, but actual loaded weight shown on the form) • Confirm you subtract weight × LCG of tank #17 from the original liquid-variable moment sum, then add that same weight × LCG of tank #18 • Double-check units: the moments on the form and in the answers should be in ft-kips, and your arithmetic should match that scale

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