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14 Cards in this Set
- Front
- Back
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The designation IWRC represents |
Independent wire rope core |
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What three things make up wire rope |
Wire Strands Core |
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What six factors must you consider when choosing a wire rope for a specific application |
Strength Flexibility Abrasion Crushing Rotation Corrosion |
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Name three types of wire rope cores |
Fibre core Wire strand core (WSC) Independent wire rope core (IWRC) |
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Wire rope strand construction (classification) describes the wire make-up of each construction type. Describe the following |
Ordinary-all of the wires are the same size Warrington-outer wires are alternately larger and smaller Seale -wires of the outer layer are larger in diameter than the wires of the inner layer Filler- the small wires fill the spaces between the larger wires |
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When you check the diameter of a rope, you must measure the size: |
Across the widest point |
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Metal slings are made up of: |
Wire rope, chain or wire mesh |
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Where do you use chain slings |
Where you use rough handling or heat |
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Which hitch would you use to hoist a bundle of steel pipe |
A double wrapped basket hitch |
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When you place two or more sling eyes in a lifting hook, you should use: |
A shackle |
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When a hook is open more than 10% of the normal throat opening at the narrowest point: |
You must remove it from service |
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The strongest synthetic fibre rope is |
Nylon |
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How do manufacturers rate shackles and where on the shackle do they stamp the rating |
The SWL for a shackle is in tons and stamped in the bow section |
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What is the amount of rope turn back from the thimble on a 7/8 diameter? |
21 inches |
