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What is the NFPA standard for on rope
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What rope constructionis used for life safety rope
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FF Chapter 7
| Question | Answer |
|---|---|
| What is the NFPA standard for on rope | NFPA 1983 |
| What rope constructionis used for life safety rope | Block and creel construction |
| What is required for manufacturers to provide according to NFPA 1983 | Proper use Inspection procedures Maintenance procedures |
| What must be completed in order to be reused in life safety situations | No abrasions or visible damage No exposure to heat/direct flame No exposure to any impact load No exposure to chemicals |
| How can impact posing be detected | It cannot |
| When should you remove a life safety rope from service | Subjected to impact load Fails inspection |
| What must be done if you downgrade life safety rope to utility rope | Must be permanently altered so it cannot be mistaken for life safety rope |
| What are some examples of synthetic fibers | Polypropylene Nylon Kevlar Polyester Polysteel Spectra |
| What is a disadvantage of synthetic rope | Will melt when exposed to heat |
| What are some advantages of synthetic rope | Resistant to mildew, rot, mold, water, shrinkage Longer life span Lightweight yet strong Easy to maintain |
| What are some natural fiber materials | Manila Hemp Sisal Cotton |
| What are some disadvantages to natural fiber ropes | Prone to mildew and mold Deteriorated when exposed to chemicals Burns when in contact with embers/flames |
| What are some advantages of natural fiber rope | Resistant to sunlight Chars rather then melts when exposed to heat |
| How is kernmantle rope constructed | Inner core of straight running fibers with a sheath of braided fibers |
| What percentage of strength does the inner core of a kernmantle rope hold | 75 |
| What is the covering of a kernmantle rope for | Increase ropes stretch resistance and pod characteristics Protects core from abrasions/contamination |
| What is a dynamic rope | One that stretches under load |
| What is a static rope | One that resists stretching under a load |
| What is elasticity a disadvantage for | Trying to raise or lower a heavy load |
| What stretch rate can static ropes have | 10% extension with 10% of the ropes maximum load applied |
| How is laid rope constructed | Twisting fibers together to form a strand and then twisting several strands together to form the rope |
| What is a disadvantage of laid rope | Susceptible to abrasions and other physical damage Any damage immediately affects the ropes strength |
| What is an advantage of laid rope | Easy to inspect |
| How is braided rope constructed | Uniformly intertwining rope together in a diagonally overlapping pattern |
| What is an advantage of braided rope | Less likely to twist |
| What is a disadvantage of braided rope | Load bearing fibers are vulnerable |
| How is braided rope constructed | Braided core with a braided outer sheath |
| What is an advantage of braid on braid rope | Very strong Half strength in the core and half in the sheath |
| What is a disadvantage of braid on braid rope | Does not resist abrasions well Sheath May slide along the inner core |
| When should rope be inspected | After every use and at least once a year |
| What should be documented on rope logs | Inspections Impact loads |
| What should happen to ropes with a soft spot | Inspect outer sheath, if sheath damaged core damage is likely |
| How should rope be inspected | Slight tension should’ve placed on rope |
| What should you look for when inspecting kernmantle rope | Irregularities Foul smells Discoloration Roughness Abrasions Deterioration Fuzziness |
| What should happen rope is excessively fuzzy | Removed from service |
| How should laid rope be inspected | Untwisted is that all surfaces are exposed |
| What should happen if mildew is found on rope | Cleaned then reinspected |
| What should you look for when inspecting synthetic rope | Soft, crusty, stiff, or brittle spots Cuts, nicks, or abrasions Dirt or grease Excessive stretching Chemical damage |
| What should you look for when inspecting natural rope | Ruptured fibers Powdering between strained Dark spots/discoloration Swollen areas Rust spots Accumulation of dirt/ grease Rot or mildew |
| What can occur if a rope has rot | Can spread quickly to ropes around |
| What should be done if rope is discovered to have rot | That rope and any surrounding rope should removed, cleaned, and reinspected Area holding rope should be cleaned an aired out |
| What should you visually inspect braid braid rope for | Heat sears Nicks Cuts |
| What can a shrunken diameter indicate | A break in the core |
| What should are some things to doin order to maintain a good rope | Avoid abrasions and wear Avoid sharp angles, bends, and knots Protect ends Avoid sustained loads Avoid rust/chemicals Reverse ends occasionally Don’t walk on rope |
| How can rope become worn or have abrasions | Constant apparatus vibration Compressed when stored Chafing or dragging over materials |
| How much can strength be reduced from sharp angles, bends and knot damage | Upto 50 percent |
| How can you protect rope ends | Whip or tape cut ends |
| What can occur if a rope is subjected to a sustained load | Can break well below it’s breaking limit |
| What damage is done by walking on rope | Dirt and debris can be grinded into rope Brussels the strands from compression |
| Of rope is contaminated how should it be cleaned | With a stiff bristled brush |
| How should you wash synthetic rope | A mild detergent and like warm water |
| How are some ways you can wash synthetic rope | Hand washing Rope washing device Normal washing machine |
| What is a disadvantage to a rope washing device | Cannot be used with a detergent Doesn’t address deeper cleaning |
| How should rope be placed in a washing machine | Inside of a mesh bag |
| What settings should be used in a washing machine | Coldest wash/rinse temperature available No center agitator |
| What should be done after rope has been washed | Dry immediately |
| How can rope be dried | Hose drying rack Suspended in a hose tower Loose coil in a hose dryer |
| How should you never dry rope | Placed near a heat source In direct sunlight |
| How should natural fiber rope be cleaned | Wipe or gently brush the rope |
| What should you not use to wash natural fiber rope | Water |
| What should you do if natural fiber rope comes in contact with water | Immediately dry it |
| How should rope be stored | In a rope bag Not in the same compartments as chemicals/fuels Not in the same compartment as gasoline tools Wear exhaust doesn’t accumulate |
| What must be included on a rope log | Product/identification label Manufacturer instruction on use/maintenance/inspection Purchase date Impact loading incidents Inspections |
| How is flat webbing constructed | Single layer of material |
| What webbing is preferred for rescue applications | Tubular webbing |
| What is the working end of a rope | Part used to tie a knot |
| What is the running part of a rope | Free end used for hoisting/pulling |
| What is the standing part of a rope | Section between working and running part |
| What is used to prevent failures in knots | An overhand safety knot on the working end of the rope |
| What is a bight | Rope bent back on itself with parellel sides |
| What is a loop | A full twist in the rope |
| What is a round turn | Further bend one side a loop |
| What is the principal use of a clove hitch | Attach rope to an object |
| What is a common use for a figure eight | Stopper knot |
| What is a figure eight bend used for | Tie ropes of equal diameters together |
| What is a figure eight follow through used for | Securing objects |
| What is a water knot used for | Joining two pieces of webbing |
| What cannot be hoisted according to osha | An air cylinder |
| What are rag lines used for | Prevent tools being hoisted from spinning or snagging |
| What is a carabiner | Snap link made from aluminum, steel, or titanium with a spring or screwed gate |
| What is the purpose of a carabiner | Connect ropes to other mechanical gear |
| What is a pulley used for | Create mechanical advantage or a change in direction |
| What should be done when hoisting materials | Make sure personnel are clear |
| What rope has been traditionally used to establish a perimeter line | Utility rope |
| What is the purpose of a search line | Allow members to remain in contact with each other Means of finding an exit route |
| What is used to stabilize an object | Rope or webbing |
| How should you go about stabilizing an object | Secure rope/webbing to an anchor then tocthe object needing stabilization |
| What should you do before tying a rope to an object needing stabilizing | Ensure strength of anchor and rope/webbing Ensure knots are tight and safety knots applied Ensure Attachment points are secure Ensure personnel clear from stabilizing line |
Created by:
Kab731