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
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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
A.emergency gear
B.drainage
C.deck cargo storage
D.securing gear
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The joint of the riser in a marine riser system that compensates for heave，the up-and-down motion of a floater，is the（）.
Regulations require that access to a cargo pumproom in a tanker carrying grade D liquid cargo，shall be（）.
The antennas of the trucks on deck are not fitted（）.
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（）.
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 athwartship hull structural members of a ship are（）.
Shell plating is（）.
A wildcat is a（）.
Grinding to eliminate shallow surface defects should be done（）.
The Tonnage Certificate indicates（）.