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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The athwartship hull structural members of a ship are（）.
In vessel construction，a greater number of watertight bulkheads results in（）.
Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this，you should（）.
The platform that supports the derrickman when tripping pipe is called the（）.
Ship’s steering gear refers to（）.
On a ship，the deck stringer is the outboardmost deck（）.
The riding pawl is（）.
Pollution regulations require that each scupper in an enclosed deck area have a（）.
To determine the weight capacity of a deck in a cargo hold，you would refer to the（）.
The opening in the deck that leads the anchor cable outside the hull is the（）.