What can cause a lack of oxygen in a chain locker（）．

Which space cannot be deducted from gross tonnage when calculating net tonnage（）.

The locker will（）as long as your ship is here.

Which of the following is a characteristic of a Ro-Ro vessel（）.

When lowering manropes alongside a stage rigged over the side of a vessel，they should be allowed to trail in the water（）.

What is the purpose of cant frames in steel vessels? （）

Floors aboard ship are（）.

When using the term limber system one is referring to a（）.

The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the（）.

What is used to prevent twisting of a towing bridle?（）