Merchant Marine Stability and Trim License Questions

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

What represents the metacentric height? A. M B. GM C. BM D. GZ

Which will be a result of removing on-deck containers? A. KG will increase B. Metacentric height will increase C. KB will increase D. Reserve buoyancy will decrease

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

Which is an indication of reserve buoyancy? A. Metacentric height B. Righting moment C. Rolling period D. Freeboard

On a vessel of 9,000 tons displacement there are two slack deep tanks of palm oil (SG .86). Each tank is 40 feet long and 30 feet wide.   What is the reduction in metacentric height due to free surface with the vessel in sea water (SG 1.025)? .   A.  0.27 ft   B.  0.48 ft   C.  0.57 ft   D.  0.74 ft

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

  What is the reduction in metacentric height due to free surface when a tank 60 feet long and 30 feet wide is  partially filled with salt water, and is fitted with a centerline bulkhead? (The vessel has a displacement of 10,000 tons.) A. 0.1 foot  B. 0.8 foot   C. 1.0 foot  D. 1.2 feet