單項(xiàng)選擇題Bilge keels are fitted on ships to().

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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1.單項(xiàng)選擇題A wildcat is a().

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

3.單項(xiàng)選擇題A set of interior steps on a ship leading up to a deck from below is known as().

A.a companion way
B.tween-decks
C.stairs
D.Any of the above are acceptable

4.單項(xiàng)選擇題A measurement device for inspecting anchor chain is the().

A.slide rule
B.go-no-go gauge
C.derrick tape
D.amp probe

5.單項(xiàng)選擇題A design modification of an anchor chain which prevents kinking is the().

A.detachable link
B.stud link
C.Kenter link
D.connecting link