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
C.safety relief valve setting
D.maximum temperature
A.handling of cargo cases
B.hanging oilskins
C.sewing canvas
D.splicing small stuff
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
In moderate wind and current what should be the length of chain with a single anchor?（）
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?（）.
An anchor winch should be equipped with mechanical brakes capable of holding（）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.
The square knot is used for（）.
Chafing gear is normally used（）.
Extended cyclical variations in tensions will cause an anchor chain to break due to（）.
The main function of the core of a wire rope is to（）.
The size of wire rope is determined by the（）.
The only wire rope termination which may be made in the field is（）.