A.fasten the bitter ends to the mooring line with half hitches
B.twist the ends together and hold them in the direction of the pull
C.twist the ends together and hold them in the direction opposite to the pull
D.twist the ends together and hold them at right angles to the mooring line
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A.maximum working pressure
B.bursting pressure
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A.handling of cargo cases
B.hanging oilskins
C.sewing canvas
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A.6 inches in diameter and 19 fathoms long
B.6 inches in circumference with 19 strands
C.6 strands with 19 wires in each strand
D.19 strands with 6 wires in each strand
A.12 strands and a two-inch diameter
B.12 strands and a two-inch circumference
C.6 strands and a two-inch diameter
D.6 strands and a two-inch circumference
最新試題
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?（）.
The rolling hitch could be used to（）.
Chafing gear is normally used（）.
Galvanizing would be suitable for protecting wire rope which is used for（）.
An anchor winch should be equipped with mechanical brakes capable of holding（）.
The rope which is the lightest is（）.
The rope which is rove from the truck to be used with a bos’n chair is called a（）.
The size of wire rope is determined by the（）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.
Manila lines in which the strands are right-hand laid（）.