A.prevent them from falling when the vessel rolls
B.protect personnel from electrical shock
C.increase their operating efficiency
D.prevent unauthorized personnel from operating them
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A.actual depth of water
B.actual depth of water below keel
C.average depth from waterline to hard bottom
D.average depth of water to soft bottom
A.floors
B.intercostals
C.girders
D.stringers
A.camel
B.dolphin
C.rat guard
D.wedge
A.bottom floor
B.outer bottom
C.shear plating
D.tank top
A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay
最新試題
The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?（）
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.
The C02 flooding system is actuated by a sequence of steps which are（）.
In relation to cargo gear，what does SWL mean?（）.
The portable radio apparatus means（）.
In the piping systems of a vessel，what type of valve gives the least resistance to fluid flow when fully open?（）.
Each cylinder in a two stroke cycle engine experiences combustion（）.
Cargo pump relief valves are piped to the（）.
If a gasoline engine turns over freely but will not start，the cause is generally（）.
If the engine of a survival craft does not start，check to see（）.