A.bow thruster
B.cargo gear
C.steering engine
D.rudder
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A.sprocket
B.Kenter link
C.swivel
D.end shackle
A.prevent chain from clinging to the wildcat
B.clean the marine debris from the chain
C.flake chain from a boat's chain locker
D.clean chain prior to an x-ray inspection
A.as a connecting strap between the butted ends of plating
B.to stiffen areas under points of great stress between beams
C.to prevent the anchor from fouling when the brake is released
D.to provide an extra heavy fitting in a heavy lift cargo rig
A.holds the boom down and flattens the main sail
B.draws the head of the sail to windward
C.tautens the standing rigging
D.douses the gaff topsail
A.extending out from a bluff alongside the river
B.that tends to give a false indication of its position
C.that has a sharp drop off into deep water
D.that is perpendicular to the current
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The opening in the deck beneath the anchor windlass that leads to the chain locker is the（）.
The opening in the deck that leads the anchor cable outside the hull is the（）.
Freeboard is measured from the upper edge of the（）.
Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.
In vessel construction，the garboard strake is（）.
Prior to magnetic particle inspection of anchor chain，the chain should be（）.
Pollution regulations require that each scupper in an enclosed deck area have a（）.
Bilge keels are fitted on ships to（）.
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（）.
The Tonnage Certificate indicates（）.