A.one barrel
B.two barrels
C.five barrels
D.ten barrels
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A.any wire running fore-and-aft on a ship
B.any wire with a fiber core
C.a heavy wire extending from the trunk of the mast to the head of the boom
D.a heavy wire extending from the mast，atwartships to the deck，to support the mast
A.In the lower level of the pumproom
B.In the middle level of the pumproom
C.In the upper level of the pumproom
D.On the deck outside the pumproom
A.weather deck
B.orlop deck
C.shelter deck
D.main deck
A.tripping line
B.tripping bracket
C.norman pin
D.steamboat ratchet
A.two chains of equal length
B.a single nylon pendant rove through a heavy ring free to move on the pendant
C.two long legs of wire rope shackled to a fishplate
D.a single length of heavy chain with both ends secured on deck to welded pad eyes
最新試題
Fueling activities（）waste liquids and vapor releases to air.
To warp a vessel means to（）.
The main advantage and chief characteristic of a Steulchen boom is that it can be（）.
You are operating a lift boat.When beginning to jack down you should（）.
What is TRUE about hoisting operations?（）
What（）to him is whether the job of a deck officer allows him to pursue his studies.
You must ensure that lifesaving equipment is（）.
The minimum length of a boat painter for a lifeboat in ocean service is（）.
The process of lowering a boom to a horizontal position and onto its deck support is called（）.
Which mooring line prevents sideways motion of a vessel moored to a pier（）.