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
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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
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
Herringbone is a term associated with（）.
Back-up wires on a towed vessel provide（）.
The standing part of a tackle is（）.
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 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（）.
Cribbing is（）.
The rolling hitch could be used to（）.
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
Manila slings should not be used to load（）.