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
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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
A.blocks have been overhauled
B.hauling parts of two tackles are attached
C.hauling part leads through the movable block
D.hauling part leads through the standing block
A.one
B.two
C.three
D.four
最新試題
A wildcat is a（）.
In vessel construction，the garboard strake is（）.
In vessel construction，a greater number of watertight bulkheads results in（）.
Shell plating is（）.
One function of a bulwark is to（）.
The athwartship hull structural members of a ship are（）.
Bilge keels are fitted on ships to（）.
Holes in the bulwark，which allow deck water to drain into the sea，are（）.
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 antennas of the trucks on deck are not fitted（）.