A.assist in drydock alignment
B.improve the vessel's stability
C.protect the vessel from slamming against piers
D.reduce the rolling of the vessel
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A.deeply-grooved drum on the windlass with sprockets which engage the links of the anchor chain
B.winch that is running out of control due to a failure of the overspeed trips
C.line that has jumped off the gypsyhead while under strain
D.nylon line that parts under strain and whips back in a hazardous manner
A.blind flange
B.pivot coupling
C.quick-release coupling
D.spectacle flange
A.a companion way
B.tween-decks
C.stairs
D.Any of the above are acceptable
A.slide rule
B.go-no-go gauge
C.derrick tape
D.amp probe
A.detachable link
B.stud link
C.Kenter link
D.connecting link
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Buckler plates are（）.
In vessel construction，the garboard strake is（）.
Regulations require that access to a cargo pumproom in a tanker carrying grade D liquid cargo，shall be（）.
Ship’s steering gear refers to（）.
The antennas of the trucks on deck are not fitted（）.
The joint of the riser in a marine riser system that compensates for heave，the up-and-down motion of a floater，is the（）.
The athwartship hull structural members of a ship are（）.
The term strake is used in reference to（）.
A wildcat is a（）.
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（）.