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Questions and Answers
Which type of company is likely to carry roof ropes?
What additional equipment is carried by the Urban Search and Rescue team companies for specific rescue situations?
What type of equipment is carried on all truck companies?
Which type of company carries an assortment of additional equipment for specific rescue situations?
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Why have synthetic ropes replaced natural-fiber ropes in the past several years?
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At what load does a low-stretch (static) rope stretch less than 5 percent?
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Why should low-stretch (static) ropes not be used in situations requiring the stretch of a high-stretch (dynamic) rope?
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What is the maximum elongation allowed for low-stretch (static) ropes at 75 percent of their breaking strength?
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What is the minimum elongation required for low-stretch (static) ropes at 75 percent of their breaking strength?
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What is the minimum breaking strength for rope used in a two-person system according to NFPA 1500 (1997) 5-9.3?
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When is life safety rope allowed to be reused according to NFPA 1500 (1997) 5-9.3?
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What is the minimum breaking strength for rope used in a one-person system according to NFPA 1500 (1997) 5-9.3?
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Under what conditions is life safety rope allowed to be reused according to NFPA 1500 (1997) 5-9.3?
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What should you visually inspect a rope for?
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What is the maximum elongation allowed for low-stretch (static) ropes at 75 percent of their breaking strength?
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Under what conditions is life safety rope allowed to be reused according to NFPA 1500 (1997) 5-9.3?
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Why have synthetic ropes replaced natural-fiber ropes in the past several years?
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What is the most important step to avoid mildew and mold when storing a rope in a rope bag?
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Why is it important to ensure that the rope is completely air dried before storing it in a rope bag?
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What is the minimum melting temperature of low stretch nylon rope?
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What triggers the immediate request for a replacement rope from the US&R station?
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In what condition is a rope not suitable for further use and should be retired from service?
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What should be recorded in the rope log every time a rope is used?
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When should a replacement rope be immediately requested from the US&R station?
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Under what condition would a rope be considered unsuitable for further use and should be retired?
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What triggers the immediate request for a replacement rope from the US&R station?
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When is a rope not suitable for further use and should be retired from service?
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What is the diameter of Prusik cord used primarily to make Prusik loops?
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What is the material construction of Prusik cord?
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What is the main purpose of Prusik cord?
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What is the stretch characteristic of Prusik cord?
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What is the optimal length for creating long prusiks using 8mm cord on 1/2-inch rope?
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How are the prusik cords tied to create a continuous loop?
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What size of prusik cord is used for prusiks on 1/2-inch rope?
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What type of pulleys are the cord lengths compatible with?
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In what way does needle loom construction differ from the conventional construction?
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What is the color-coding for a 5-foot length of webbing?
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What is the color-coding for a 15-foot length of webbing?
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What is the color-coding for a 12-foot length of webbing?
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What is the color-coding for a 20-foot length of webbing?
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The following are characters of a good knot
- Easy to tie.
- Easy to identify to determine if they are tied correctly.
- Will not work loose on their own.
- Minimally reduce rope strength.
- Relatively easy to untie after loading.
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Match the term with the definition
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Match the term with its definition
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A round turn is made by continuing to cross one side of a loop all the way around to form a circle with the ends of the rope parallel as in a bight.
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The Figure 8 stopper is also known as the Figure 8 knot
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A well-dressed and set knot is typically weaker and harder to check for safety.
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The Figure 8 stopper is also known as the Figure 8 knot.
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The family of eight knots needs to be dressed and set, which means all the strands should...
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How long does the tail need to be left at the end of the rope
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What knot is used in place of the Figure 8 on a blight when it is not possible to slip the loop over the intended object or clip it in with a carabiner
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What is used to join the ends of one rope to the ends of two ropes in the same diameter together
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What is the minimum diameter required for an anchor to maintain the full strength of the rope in a tensionless anchor?
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What type of knot is tied in the running end of the rope in a tensionless anchor?
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Where should the tensionless anchor be applied on an anchor point?
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What is the minimum breaking strength of the life ropes carried on truck companies?
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What type of rope does the US&R team use for specific rescue situations?
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What is the standard compliment water rope?
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What is the tension strength of a 75 foot 8.5 mm Bluewater Econoline rope?
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Water rope is designed to float and be deployed out of a throw bag.
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Utility Roof Ropes are
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Each rope comes with an attached aluminum carabiner rated for
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Should the utility roof ropes be mixed with the carabiners in the RS-1 equipment caches?
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Study Notes
Company Types and Equipment
- Truck companies typically carry roof ropes for various rescue operations.
- Urban Search and Rescue (US&R) teams carry specialized equipment tailored for specific rescue scenarios, such as structural collapses and water rescues.
- All truck companies are equipped with essential items such as ladders, hoses, and basic rescue tools.
- Rescue companies are equipped with an assortment of additional gear for specialized situations beyond standard operations.
Rope Specifications and Usage
- Synthetic ropes have largely replaced natural-fiber ropes due to their improved strength, durability, and resistance to elements such as moisture and UV light.
- A low-stretch (static) rope stretches less than 5 percent at loads of up to 3000 pounds.
- Low-stretch ropes are not suitable for applications requiring dynamic stretching since they lack elasticity, which could lead to potential injuries in falls.
- The maximum elongation for low-stretch ropes at 75 percent of their breaking strength is 5 percent.
- The minimum elongation required for low-stretch ropes at this threshold is 0.5 percent.
- For a two-person system, the minimum breaking strength of rope is 6000 pounds according to NFPA 1500 (1997) standards.
Life Safety Rope Guidelines
- Life safety ropes may be reused if they have not been subjected to a fall or damage, as per NFPA 1500 (1997).
- For a one-person system, the minimum breaking strength of rope is 4000 pounds, in accordance with NFPA 1500 (1997).
- Conditions under which life safety ropes can be reused include no visible signs of wear, damage, or having endured a severe load.
Rope Inspection and Maintenance
- Visual inspections should include checks for fraying, cuts, or discoloration.
- Ropes must be completely air-dried before being stored in a rope bag to prevent mold and mildew growth.
- The minimum melting temperature of a low-stretch nylon rope is typically around 450°F.
- Immediate requests for replacement rope are triggered by visible damage or if the rope has experienced a fall.
Rope Log and Replacement Procedures
- Each use of a rope should be recorded in a rope log, noting conditions and any abnormalities.
- A rope is deemed unsuitable for further use if it shows signs of significant wear or has been involved in a fall.
Prusik Cords and Their Characteristics
- Prusik cords, primarily 8mm in diameter, are constructed from low-stretch materials and are key for ascending and descending systems.
- The main purpose of Prusik cord is to create a friction hitch that allows controlled movement along a rope.
- An optimal length for long prusiks using 8mm cord on 1/2-inch rope is typically around 24-30 inches.
- Prusik cords are tied to create continuous loops using double fisherman's knots.
Knot Characteristics and Definitions
- A good knot should be easy to tie, identifiable, secure without slipping, minimally reduce rope strength, and easy to untie after loading.
- The minimum diameter required for an anchor to maintain the full strength of the rope in a tensionless anchor is 3 inches.
- A round turn is made by wrapping one side of a loop fully around, creating parallel ends.
- The Figure 8 knot is also known as the Figure 8 stopper.
Water and Utility Ropes
- Water ropes are designed to float and allow for efficient deployment from throw bags.
- Utility roof ropes come equipped with attached aluminum carabiners rated for appropriate loads and should not be mixed with other equipment in RS-1 caches.
- The tension strength of a 75-foot, 8.5 mm Bluewater Econoline rope is around 4000 pounds.
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Description
Test your knowledge of the basic and specialized rescue equipment carried by fire department truck companies, engine companies, and Urban Search and Rescue teams.