A.Aye Aye Sir
B.Right 15 degrees rudder
C.Rudder is right 15 degrees
D.No reply is necessary，just carry out the order
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A.heavy-walled drill pipe
B.tool joint
C.down hole tool
D.drill collar
A.main brace
B.tow span
C.jockey bar
D.None of the above
A.one sidelight
B.one sidelight and a masthead light
C.one sidelight and two masthead lights
D.both sidelights of a vessel and her masthead light(s)
A.vernier
B.psychrometer
C.hygrometer
D.stadimeter
A.information or regulatory buoy that has lateral significance
B.buoy that is off-station and is marked to warn mariners of its wrong position
C.dual purpose marking used where the ICW and other waterways coincide
D.buoy that was set in error and will be replaced with a red nun buoy
最新試題
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound（）.
A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
It is not necessary to declare（）in the Health List.
For the purposes of cargo oil containment，the fixed container under the manifold of an eight-inch loading line must hold a minimum of（）.
A hand held instrument used to measure distances between objects and the ship is a（）.
After sending a message describing the symptoms of an ill crew member，you receive a message containing the code MRL. This means（）.
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 vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）
A safe fuel system must（）.
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（）.