A.degaussed
B.demagnetized
C.soaked
D.sandblasted
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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
A.plating
B.beam
C.stiffener
D.stanchion
A.located next to and parallel to the keel
B.located next to and parallel to the gunwale
C.another term for the bilge keel
D.another term for the rub rail
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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（）.
The riding pawl is（）.
Prior to magnetic particle inspection of anchor chain，the chain should be（）.
Freeboard is measured from the upper edge of the（）.
Bilge keels are fitted on ships to（）.
Forecastle deck is located in the ship’s（）.
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（）.
The opening in the deck that leads the anchor cable outside the hull is the（）.
Grinding to eliminate shallow surface defects should be done（）.
Fuel oil tank vents are fitted with a screen which will stop（）.