An LWT anchor often has difficulty tripping in（）.

The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.

The most common type of davit found on merchant vessels today is the（）.

The exhaust pipe must be gas tight throughout its entire length otherwise（）.

In ship construction，keel scantlings should be the greatest（）.

The function of the bypass valve on the self-contained breathing apparatus is to（）.

In the piping systems of a vessel，what type of valve gives the least resistance to fluid flow when fully open?（）.

The holding capability of an anchor is primarily determined by the（）.

Limit switches are used on which davits?（）

The series of valves used to control the return flow in well control operations is called the（）.