A.Lead
B.Babbitt
C.Solder
D.Nothing
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A.To act as ballast for light vessels
B.To provide ventilation and drainage for cargo
C.To secure the tarpaulins in place
D.To support weakened bulkheads
A.Chain to chain connections
B.Chain to anchor connections
C.Kenter link to anchor connections
D.Wire rope connections
A.Downhaul
B.Backstay
C.Halyard
D.Sheet
A.Distance line
B.Gantline
C.Heaving line
D.Tag line
A.The bottom block touches the top block
B.The line has jumped the sheaves
C.There are turns in the fall
D.You have two blocks
最新試題
The square knot is used for（）.
When riveted joints occur at the ends of plating they are called（）.
What type of line melts easiest（）.
Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use（）.
Manila slings should not be used to load（）.
Which lashing materials would be used in securing light vehicles aboard Ro-Ro vessels（）.
The strongest of the natural fiber ropes is（）.
When towing，what is the main reason for using a chain bridle on a wire hawser（）.
When passing a hawser to the dock you would first use what line（）.
What is normally used to pass a mooring line to a dock（）.