A.in
B.on
C.out
D.with
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A.cargo handling machines
B.deck winches and derricks
C.engine-room tools
D.course controlling system
A.the galvanizing on steel
B.a hatch cover
C.the outer plating of a vessel
D.synonymous with decking
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
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The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.
Fuel oil tank vents are fitted with a screen which will stop（）.
Pollution regulations require that each scupper in an enclosed deck area have a（）.
The opening in the deck that leads the anchor cable outside the hull is the（）.
Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this，you should（）.
Holes in the bulwark，which allow deck water to drain into the sea，are（）.
The riding pawl is（）.
The antennas of the trucks on deck are not fitted（）.
The Tonnage Certificate indicates（）.
Prior to magnetic particle inspection of anchor chain，the chain should be（）.