While in transit at a draft of 10.5 feet,...

Question 1 / 2707066636ee728f7522a1c518ce7

Question 1 of 2707066636ee728f7522a1c518ce7

While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT?

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Question 1 of 27070

Q

While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT?

🔍 Key Concepts

• KB + KG + GM = KMT relationship for vertical centers on a vessel • How change in draft affects the vertical center of buoyancy (KB) and thus KM • Difference between KGT (KG above keel) and GMT (GM above center of gravity)

💭 Think About

• What basic hydrostatic relation connects KGT and GMT to KMT? Think about which two you know and which one you are solving for. • If the vessel’s hydrostatic data gives you KMT at 10.5 ft draft, how would you use that value together with KGT to find GMT? • Look at the size of KGT (60 ft). Should GMT be a very large number or a moderate number above G? Compare the choices with that idea.

✅ Before You Answer

• Be clear that KGT is measured from the keel up to G, and KMT is from the keel up to the metacenter. • Verify the formula you’re using has the terms on the correct side (don’t mix up KM = KB + BM with KG + GM = KM). • Double‑check your arithmetic: after you find KMT, subtract KGT correctly and see which option matches.

Question 1 of 27070

Q

While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT?

A

139.92 feet

B

138.89 feet

C

79.92 feet

D

78.89 feet

Question 1 / 2707066636ee728f7522a1c518ce7

Question 1 of 2707066636ee728f7522a1c518ce7

While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT?

Back

Question 1 of 27070

Q

While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT?

🔍 Key Concepts

• KB + KG + GM = KMT relationship for vertical centers on a vessel • How change in draft affects the vertical center of buoyancy (KB) and thus KM • Difference between KGT (KG above keel) and GMT (GM above center of gravity)

💭 Think About

• What basic hydrostatic relation connects KGT and GMT to KMT? Think about which two you know and which one you are solving for. • If the vessel’s hydrostatic data gives you KMT at 10.5 ft draft, how would you use that value together with KGT to find GMT? • Look at the size of KGT (60 ft). Should GMT be a very large number or a moderate number above G? Compare the choices with that idea.

✅ Before You Answer

• Be clear that KGT is measured from the keel up to G, and KMT is from the keel up to the metacenter. • Verify the formula you’re using has the terms on the correct side (don’t mix up KM = KB + BM with KG + GM = KM). • Double‑check your arithmetic: after you find KMT, subtract KGT correctly and see which option matches.