A.Using a medium graphite grease as a lubricant
B.Operating a winch too slow
C.Using a sheave with an undersized throat
D.A sheave diameter of 24 times the wire's diameter
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A.Detachable
B.Open
C.Pear shaped
D.Stud link
A.Single whip
B.Gun tackle
C.Luff tackle
D.Twofold purchase
A.A line led forward from the bow
B.A line led aft from the bow
C.A line led in the same direction as the keel
D.A line led at a right angle to the keel
A.on only the forward falls
B.on only the after falls
C.with a lead of about 45 degrees to the boat
D.from the falls to the main deck of the vessel
A.Base line
B.Molded line
C.Designer's waterline
D.Keel line
最新試題
Which type of link is generally used to connect shots of anchor chain（）.
When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.
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.
What term indicates the line drawn at the top of the flat plate keel（）.
The Repairer shall be relieved of all obligations under these terms and conditions caused by such all following matters except（）.
Which mooring line prevents sideways motion of a vessel moored to a pier（）.
Solid waste generation，and electricity and water consumption are costly and have their own set of environmental（）.
The process of lowering a boom to a horizontal position and onto its deck support is called（）.
What is TRUE about hoisting operations?（）
The tweendecker has（）below the main deck.