Question 4729Deck General70% to pass
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-09"; Port Aft 68'-09"; Starboard Forward 59'-09"; and Starboard Aft 63'-09". What is the list?
AI Explanation
The correct answer is B) 5 feet to port.
To calculate the list, we need to find the difference between the port and starboard drafts at the forward and aft draft marks. The list is the average of these two differences.
At the forward draft marks, the difference is 64'9" - 59'9" = 5 feet to port.
At the aft draft marks, the difference is 68'9" - 63'9" = 5 feet to port.
The average of these two differences is 5 feet to port, which makes B the correct answer.
The other options are incorrect because:
A) 10 feet to port is too much, as the maximum difference between port and starboard drafts is only 5 feet.
C) 5 feet to starboard is the opposite of the actual list direction.
D) 2.5 feet to port is half the actual list.
Related Questions
#4727 While loaded as shown in the Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What would be the new draft? #4728 A semisubmersible at a draft of 19 feet 9 inches arrives on location planning to deploy eight mooring lines. Each anchor weighs 15 long tons and each mooring line consists of 3,000 feet of 3-inch chain (89.6 lbs/ft). If no ballast corrections are made, what is the expected draft if the average TPI is 60? #4730 A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-9"; Port Aft 68'-9"; Starboard Forward 59'-9"; and Starboard Aft 63'-9". What is the true mean draft? #4731 With no environmental forces on the DEEP DRILLER, the average of the forward drafts is 61.0 feet, and the average of the aft drafts is 59.0 feet. KGL is 51.13 feet. What is the value of LCG? #4732 For a MODU with longitudinal inclination, an increase in GML causes _______________.