A.drill stem guide
B.guide frame
C.drill string frame
D.casing guide
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A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center
A.one control
B.two controls
C.three controls
D.none of the above
A.anchored
B.underway but not fishing
C.tending a small fishing boat
D.fishing by trawling
A.loss of life
B.an injury requiring only first aid
C.$(SA)10，000 in property damage
D.loss of equipment which doesn't reduce the vessel's maneuverability
A.the other services are run off a reducing station with a pressure gage
B.one of the required pumps is kept available for use on the fire main system at all times
C.no relief valves are installed
D.all of the above conditions are met
最新試題
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（）.
Permanent magnetism is found in（）.
It is not necessary to declare（）in the Health List.
A fire has broken out on the stern of your vessel. You should maneuver your vessel so the wind （）.
A green buoy has a yellow triangle on it. This is a(n)（）.
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）
Please supply 200 tons of fresh water（）my ship.
An inert gas system installed on a tanker is designed to（）.
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 fire pump may be used for other purposes if（）.