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
What is TRUE about hoisting operations?（）
The tweendecker has（）below the main deck.
Which tackle arrangement has the LEAST mechanical advantage（）.
The usual method of arranging a line on deck so that it will run out easily without kinking or fouling is（）.
The Repairer shall be relieved of all obligations under these terms and conditions caused by such all following matters except（）.
The main advantage and chief characteristic of a Steulchen boom is that it can be（）.
What term indicates the line drawn at the top of the flat plate keel（）.
The process of lowering a boom to a horizontal position and onto its deck support is called（）.
To warp a vessel means to（）.
What is meant by the term TOPPING THE BOOM?（）