A.the galvanizing on steel
B.a hatch cover
C.the outer plating of a vessel
D.synonymous with decking
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A.away from galleys，living quarters，or navigation spaces
B.only from areas equipped with power ventilation systems
C.from the open deck
D.isolated from sources of vapor ignition
A.degaussed
B.demagnetized
C.soaked
D.sandblasted
A.wooden plug
B.soft rubber plug
C.two-piece soft patch
D.mechanical means of closing
A.drop strakes
B.stealers
C.throughs
D.voids
A.help keep the deck dry
B.prevent stress concentrations on the stringer plate
C.protect against twisting forces exerted on the frame of the vessel
D.reinforce the side stringers
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To determine the weight capacity of a deck in a cargo hold，you would refer to the（）.
In vessel construction，the garboard strake is（）.
A single fitting installed in a pipeline that either blanks off the pipe or allows a full flow passage of a liquid through the pipe is referred to as a（）.
Owing to the greater girth of a ship amidships than at the ends，certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. These strakes are called（）.
Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.
Buckler plates are（）.
The machinery associated with heaving in and running out anchor chain is the（）.
Pollution regulations require that each scupper in an enclosed deck area have a（）.
The riding pawl is（）.
The Tonnage Certificate indicates（）.