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 fishing vessel casualty must be reported to the Coast Guard if it involves（）.
A flooded leg on a liftboat would adversely affect the vessel’s stability underway by（）.
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（）.
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
A fishing vessel displaying the lights shown is（）.
Cargo transfer operations on a tank vessel need NOT be stopped when（）.
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 green buoy has a yellow triangle on it. This is a(n)（）.
Permanent magnetism is caused by（）.
All ships（）suspected infectious disease on board should radio information to Port Health Officer.