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29 Cards in this Set
- Front
- Back
Wire rope is composed of what three parts? |
Wires, strands, core |
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What determines the length of a rope lay? |
The distance in which a strand makes one complete turn around the rope. |
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Where should you store wire rope when not put into service? |
A place protected from weather and from possible contact with acid or acid fumes |
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How should you clean wire rope before lubrication? |
Wire brushes, compressed air, superheated steam, JP-5, or turbine oil. |
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Which wire rope terminating fitting retains 100% of the minimum breaking strength of the wire rope? |
Poured zinc socket and poured resin socket |
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When properly applied, wire rope clips will retain what percent of the minimum breaking strength of the wire rope used? |
80 % |
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What is the correct way to attach wire rope clips (u bolts) to the wire rope? |
Place all of the U bolts on the dead end (short end) of the wire rope. |
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What spacing is considered suitable when applying wire rope clips? |
6 times the diameter of the rope |
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What type of wire rope splice consists of pressing a metal sleeve around wire rope using a hydraulic press for large ropes and a hand operated press for smaller wire? |
Swaging |
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Short splices and long splices retain how much strength of the wire rope? |
95% short splice, 100% long splice |
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Which wire rope splice is the easiest to make but should not be used in a rope that is free to spin when loaded? |
Liverpool splice |
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What is the preferred wire rope splice that will not pull or spin out? |
Lock-tuck splice |
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How are large fiber ropes identified? |
Water resistant marker inserted into the center of one strand of the rope. |
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Which type of synthetic line will float? |
Polypropylene and polyethylene |
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All lines 1 3/4 and higher are required to be what? |
Right laid |
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Which synthetic line is two hollow braided lines, with one stuffed inside the other? |
Double braid |
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Signal halyards are made up of what type and size line? |
1 1/2 in plaited polyester |
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How should natural fiber line furnished in coils be uncoiled? |
Draw the rope up from the eye in a counter clockwise direction to avoid kinking. |
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How should synthetic rope be unreeled? |
By inserting a pipe through the center holes of the reel heads to hold the reel clear of the deck. |
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What is the stretch limit of 4 strand aramid line? |
6 % |
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What is the stretch limit for polyester double braid line? |
30 % |
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What is the stretch limit for 3 strand polyester line? |
35 % |
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What is the stretch limit of nylon double braided line? |
40% |
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What is the stretch limit of 3 strand nylon line? |
55% |
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How much strength is loss in nylon line when wet? |
15 % |
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What is the rule of thumb when making an eye splice designed to go over a fitting? |
5 times the diameter of the fitting |
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Natural fiber lines more than 5 years old shall be only used for what? |
Lashing, fenders or matting |
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Polypropylene and polyethylene line that has been exposed to sunlight on a continuous basis can lose how much breaking strength of the line? |
40% |
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What type of line is used for tattle tales? |
6 thread manila |