A.floors
B.intercostals
C.girders
D.stringers
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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
A.increase the lifting capacity
B.increase the lifting radius
C.protect the slings
D.protect the upper part of a load
A.keeps sparks from falling into an open tank
B.secures covers on ullage openings
C.prevents sparks from getting out of an engine's exhaust system
D.grounds static electricity
最新試題
The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.
As oil pipe line connections were broken，（）quantity of oil was caused to spill onto the wharf and into the dock water.
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.
Each cylinder in a two stroke cycle engine experiences combustion（）.
The exhaust pipe must be gas tight throughout its entire length otherwise（）.
In ship construction，keel scantlings should be the greatest（）.
In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.
In the piping systems of a vessel，what type of valve gives the least resistance to fluid flow when fully open?（）.
The function of the bypass valve on the self-contained breathing apparatus is to（）.
The boat is stowed on the davit rather than on a cradle with which type of davit?（）