Question 2517Deck Safety70% to pass
The period of roll is the time difference between _______________.
AI Explanation
The correct answer is D) full inclination on one side to the next full inclination on the same side.
The period of roll refers to the time it takes for a vessel to complete one full cycle of rolling from one side to the other and back again. This is measured from the point of maximum inclination on one side to the point of maximum inclination on the same side in the next cycle.
The other options are incorrect because they do not accurately describe the full cycle of the roll period. Option A measures only half the cycle, option B includes the time between two zero inclination points which does not capture the full roll, and option C measures the time between full inclinations on opposite sides which is not the definition of period of roll.
Related Questions
#2515 The liquid mud tanks on your vessel measure 20'L by 18'B by 7'D. The vessel's displacement is 866 T and the specific gravity of the mud is 1.8. What is the reduction in GM due to a pair of these tanks (p/s) being slack? #2516 Your vessel has a displacement of 19,800 tons. It is 464 feet long, and has a beam of 64 feet. You have timed its rolling period to be 21.0 seconds in still water. What is your vessel's approximate GM? #2518 You are at sea on a vessel that has a beam of 50 feet, and you calculate the period of roll to be 22 seconds. What is the vessel's metacentric height? #2519 When the wave period and the apparent rolling period are the same _______________.#2520 Your vessel measures 114 feet long by 16 feet in beam. If the natural rolling period at a draft of 5'-06" is 6 seconds, what is the GM?