单选题A mooring line is described as being 6x24,1-3/4 inch wire rope. What do the above numbersrefer to?()AStrands,yarns,circumferenceBStrands,wires,diameterCWires,yarns,diameterDStrands,circumference,wires

单选题
A mooring line is described as being 6x24,1-3/4 inch wire rope. What do the above numbersrefer to?()
A

Strands,yarns,circumference

B

Strands,wires,diameter

C

Wires,yarns,diameter

D

Strands,circumference,wires


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Mooring winch should be equipped with mechanical brakes capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the working tension of the mooring line

A synthetic mooring line is being heaved on a capstan.There is moderate strain on the line.The line begins to slip.Which of the following should be done?Ⅰ.Stop the capstan and take extra turns.Ⅱ.Have more than one seaman keep a substantial strain on the line and continue heaving easy.A.ⅠonlyB.ⅡonlyC.Both Ⅰand ⅡD.Neither Ⅰ nor Ⅱ

Mooring winch should be equipped with mechanical brakes which are capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the working tension of the mooring line

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A mooring line is described as being 6x24, 1-3/4 inch wire rope. What do the above numbers refer to ? ______.A.Strands, yarns, circumferenceB.Strands, wires, diameterC.Wires, yarns, diameterD.Strands, circumference, wires

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Mooring-Line的作用是()。

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