A fishing vessel displaying the lights shown is（）.

A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound（）.

A fire is discovered in the bow of your vessel while making way. The wind is from ahead at 35 knots. You should（）.

A fire pump may be used for other purposes if（）.

A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the（）.

A large metallic device，mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached)，designed to prevent the passage of a rapidly moving flame through the piping is called a（）.

A hand held instrument used to measure distances between objects and the ship is a（）.

Permanent magnetism is found in（）.

All ships（）suspected infectious disease on board should radio information to Port Health Officer.

A large valve，usually installed above the ram preventers，that forms a seal in the annular space between the pipe and wellbore or，if no pipe is present，on the wellbore itself is called the（）.