A.height
B.breadth
C.depth
D.length
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A.lift
B.rise
C.elevate
D.hoist
A.Radial
B.Sheath-screw
C.Quadrantal
D.Gravity
A.Centrifugal
B.Gear
C.Piston
D.Vane
A.A flashing light combined with a fixed light of greater brightness
B.Light flashes combined in groups，with a different number of flashes in each group
C.A light showing groups of two or more flashes at regular intervals
D.A fixed light varied at regular intervals by groups of two or more flashes of greater brightness
A.auxiliary guys
B.extra fair leads
C.steel bands
D.stops
最新試題
The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?（）
The main advantage and chief characteristic of a Steulchen boom is that it can be（）.
The stevedores have already stowed the porcelain ware（）up to the deckhead.
What is TRUE about hoisting operations?（）
You have been towing astern and have just let go the tow.Your deckhands are pulling in and faking the towline by hand on the stern.The most dangerous action to take is to（）.
Solid waste generation，and electricity and water consumption are costly and have their own set of environmental（）.
The Repairer shall be relieved of all obligations under these terms and conditions caused by such all following matters except（）.
When a line is spirally coiled about its end and lying flat on deck，it is said to be（）.
The margin plate is the（）.
You are operating a lift boat.When beginning to jack down you should（）.