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

The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.

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

In nautical terminology a dog is a（）.

All electrical appliances aboard a vessel should be grounded to（）.

If a gasoline engine turns over freely but will not start，the cause is generally（）.

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

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

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

In ship construction，frame spacing is（）.