A.main brace
B.tow span
C.jockey bar
D.None of the above
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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
A.drill stem guide
B.guide frame
C.drill string frame
D.casing guide
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
最新試題
A flooded leg on a liftboat would adversely affect the vessel’s stability underway by（）.
An inert gas system on a tanker should be used to（）.
A safe fuel system must（）.
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
A head-on situation at night is one in which you see dead ahead a vessel showing（）.
A green buoy has a yellow triangle on it. This is a(n)（）.
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.
A fire is discovered in the bow of your vessel while making way. The wind is from ahead at 35 knots. You should（）.
A hand held instrument used to measure distances between objects and the ship is a（）.
For the purposes of cargo oil containment，the fixed container under the manifold of an eight-inch loading line must hold a minimum of（）.