When a vessel has positive stability, the distance between the line of force through B and the line of
force through G is called the __________.
A. metacentric height
B. righting arm
C. righting moment
D. metacentric radius
force through G is called the __________.
A. metacentric height
B. righting arm
C. righting moment
D. metacentric radius
B : Righting Arm (GZ)
ReplyDeleteIn fact, it is the PERPENDICULAR distance between the line of force through B and the line of force through G.
Yes, the best answer is B. I always find it easier to see the answer if you can sketch the vessel included and plot G acting downward and B acting upward. I will try to post a figure from my book as an illustration.
ReplyDeleteBravo:
ReplyDeleteI had to RTFQ a few times “Distance” is the measure of the righting arm GZ.
The question almost had me consider a measure of force which would be the “righting moment”