A.mallet used when splicing wire rope
B.sharp pointed crow bar used to unlay wire rope
C.tapered steel pin used to separate wire rope
D.tapered wooden pin used when splicing heavy rope
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A.Number of wires in the inner core
B.Number of strands per wire rope
C.Tensile strength of the wire
D.Number of wires per strand
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
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
最新試題
The rolling hitch could be used to（）.
A tackle by which the outer end of a boom is raised and lowered is the topping（）.
Limit switches on gravity davits should be tested by（）.
If kinking results while wire rope is being coiled clockwise，you should（）.
Chafing gear is used to（）.
The only wire rope termination which may be made in the field is（）.
An anchor winch should be equipped with mechanical brakes capable of holding（）.
The size of wire rope is determined by the（）.
Cribbing is（）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.