A.lift
B.rise
C.elevate
D.hoist
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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
A.be open to view so，if a foreign object gets in the gearing，the operator can immediately stop the machinery
B.have a guard over the gearing
C.be painted a contrasting color from the base color in order to call attention to the gearing
D.not be operated if there is any crew within 10 feet of the machinery
最新試題
The tweendecker has（）below the main deck.
You are operating a lift boat.When beginning to jack down you should（）.
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（）.
The vessel or other goods upon which the Works have been carried out must be（）from the Repairer’s worksite within 3 days after the invoice date or in accordance with other written notification by the Repairer to the Customer.
The terms ceiling and margin plate are associated with the（）.
Which type of link is generally used to connect shots of anchor chain（）.
The Chief Petty Officer employed in the repair and maintenance work shall such abilities as to prepare and apply（）.
Which mooring line prevents sideways motion of a vessel moored to a pier（）.
You are handling a mooring line and are instructed to Check the line.What should you do（）.
The stevedores have already stowed the porcelain ware（）up to the deckhead.