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
Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.
If the engine of a survival craft does not start，check to see（）.
The portable radio apparatus means（）.
In ship construction，frame spacing is（）.
The boat is stowed on the davit rather than on a cradle with which type of davit?（）
In relation to cargo gear，what does SWL mean?（）.
In ship construction，keel scantlings should be the greatest（）.
The function of the bypass valve on the self-contained breathing apparatus is to（）.
The bypass valve on a self-contained breathing device should be opened if（）.
In the piping systems of a vessel，what type of valve gives the least resistance to fluid flow when fully open?（）.