Question 1 of 20
Q
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; Port Aft 78'-09"; Starboard Forward 69'-09"; and Starboard Aft 73'-09". What is the list?
A
-1.0 foot
B
-2.5 feet
C
-5.0 feet
D
-10.0 feet
Loading interactive features...
Question 1 / 2066636ee728f7522a1c51887a
Question 1 of 2066636ee728f7522a1c51887a

A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; Port Aft 78'-09"; Starboard Forward 69'-09"; and Starboard Aft 73'-09". What is the list?

Back
Question 1 of 20
66636ee728f7522a1c51887a
Questions
Questions
Q

A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; Port Aft 78'-09"; Starboard Forward 69'-09"; and Starboard Aft 73'-09". What is the list?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Mean draft on each side (average of forward and aft on port; average of forward and aft on starboard) • How list is measured and how it relates to the difference in mean drafts port vs. starboard • Relationship between difference in drafts and transverse metacentric height / geometry for converting inches of draft difference into feet of list

💭 Think About

• First, compute the mean draft on the port side and on the starboard side. How much deeper is one side than the other? • Think about whether a positive list is commonly taken as to port or to starboard in these types of problems. How might a negative sign in the answers relate to that convention? • Consider how a 200-foot-long semisubmersible’s geometry might affect the conversion from difference in side drafts to an angle or linear measure of list. What geometric relationship are you expected to use here?

✅ Before You Answer

• Be sure you have correctly converted feet and inches to a consistent unit before averaging or subtracting drafts. • Double-check which drafts to use for list (transverse tilt) versus trim (longitudinal tilt). List depends on port vs. starboard, not forward vs. aft. • Confirm that your final value’s sign matches the standard convention used in your course materials (e.g., list to port vs. list to starboard).