Prusik Cord Pinch Test and Suppleness

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Questions and Answers

What is the primary purpose of rescue rope in technical rescue?

  • To secure rescuers and victims in elevated positions (correct)
  • To provide protection against extreme weather conditions
  • To create pulley systems for moving heavy objects
  • To act as a signaling device for communication

Which category of rope rescue equipment includes carabiners, pulleys, and ascending and descending devices?

  • Specialized rescue equipment
  • Basic rescue equipment
  • Rescue software
  • Hardware (correct)

What is the purpose of a pick-off strap in rope rescue?

  • To protect rescuers and victims from extreme weather conditions
  • To secure a suspended victim for rescue (correct)
  • To create pulley systems for moving heavy objects
  • To act as a communication device for rescuers

What type of company carries an assortment of additional equipment for specific rescue situations?

<p>Urban Search and Rescue team companies (D)</p> Signup and view all the answers

In technical rescue, what is the purpose of commercial harnesses?

<p>To secure rescuers and victims in elevated positions (C)</p> Signup and view all the answers

What is the purpose of signal rope in rope rescue scenarios?

<p>To act as a signaling device for communication (A)</p> Signup and view all the answers

What is the minimum melting temperature of low stretch nylon rope?

<p>400°F (B)</p> Signup and view all the answers

What is the function of Prusik loops in rescue systems?

<p>Hauling and braking (A)</p> Signup and view all the answers

What causes the number one rope failure according to the text?

<p>Abrasion and cutting over sharp edges (C)</p> Signup and view all the answers

What is the diameter of Prusik cord mentioned in the text?

<p>8mm (B)</p> Signup and view all the answers

How can damage be avoided when a rope runs over sharp edges?

<p>By using edge protection (B)</p> Signup and view all the answers

What materials can be used for abrasion protection according to the text?

<p>Turnout coats, packs, and heavy clothing (D)</p> Signup and view all the answers

What is the minimum bend for a 1/2-inch (12.7mm) rope to maintain maximum strength?

<p>$2 inches$ (A)</p> Signup and view all the answers

What should be done to rescue ropes placed out of service due to certain conditions?

<p>Request a replacement from the US&amp;R station (A)</p> Signup and view all the answers

What must be recorded in a rope log each time a rope is used?

<p>$Usage and any unusual loading$ (D)</p> Signup and view all the answers

What should be done before setting up some rescue systems?

<p>Attach identifying marks or numbers (B)</p> Signup and view all the answers

What is the ideal material for prusik loops mentioned in the text?

<p>Soft, pliable rope (D)</p> Signup and view all the answers

What can cause severe overheating of metal components in technical rescues according to the text?

<p>Excessive friction from fast rappels (A)</p> Signup and view all the answers

What type of rope is preferred for rescue work due to its ability to stretch very little when loaded?

<p>Low-stretch (static) rope (C)</p> Signup and view all the answers

Which term refers to the German word meaning core and sheath in rope construction?

<p>Kernmantle (C)</p> Signup and view all the answers

Which material is used to create the sheath in low stretch (static) rescue rope?

<p>Nylon (D)</p> Signup and view all the answers

What is the minimum breaking strength for rope used in one-person systems according to NFPA 1983 standards?

<p>4,500 lbf. (20kN) (B)</p> Signup and view all the answers

What is the preferred material for rescue rope, which is lighter, stronger, and more resistant to decay and rot than natural fiber rope?

<p>Nylon synthetic rope (B)</p> Signup and view all the answers

What type of rope is used when long falls may be anticipated but is not practical for rescue work due to its rubber band-like behavior when loaded?

<p>High-stretch (dynamic) rope (A)</p> Signup and view all the answers

What is the meaning of kernmantle in the context of rope construction?

<p>$90-95$% load-carrying capacity of the core (A)</p> Signup and view all the answers

What should be visually inspected on a rescue rope before and after each use?

<p>$Unusual$ wear (A)</p> Signup and view all the answers

How should ropes be cleaned to avoid damage?

<p>$Wash$ in cold water without strong detergents (A)</p> Signup and view all the answers

What will prolonged exposure to sunlight do to nylon rope?

<p>$Weaken$ the nylon fibers (D)</p> Signup and view all the answers

What will cause a portion of the rope to weaken over time?

<p>Leaving knots in the rope during storage (D)</p> Signup and view all the answers

What is a convenient method of storing and carrying rope that also protects it from damage?

<p>Placing the rope in a rope bag (A)</p> Signup and view all the answers

What is the main reason for turning carabiner gates opposite and opposed in some rescue systems?

<p>To prevent accidental opening of the gate during a rescue (C)</p> Signup and view all the answers

What can happen if a locking carabiner's locking mechanism is rolled across the face of a cliff or a building?

<p>The carabiner might unlock on its own (C)</p> Signup and view all the answers

What is the recommended action if vibration is causing the gates of carabiners to open?

<p>Turn the gate down so gravity is working against it (B)</p> Signup and view all the answers

What is the reason for using all-metal rescue pulleys in technical rope rescue?

<p>To maximize strength (D)</p> Signup and view all the answers

Why should the sheave of a rescue pulley be four times the diameter of the rope being used?

<p>To minimize loss of rope strength as it bends around the sheave (A)</p> Signup and view all the answers

What type of bearing should be used in rescue pulleys to ensure smooth rotation and avoid contamination?

<p>Sealed ball-bearing type (D)</p> Signup and view all the answers

What should be done if a pulley has sharp edges, nicks, or burrs?

<p>Lightly file or sand them off (B)</p> Signup and view all the answers

What is the purpose of the ears on a Rescue-8 descender?

<p>To prevent accidental formation of a girth hitch (D)</p> Signup and view all the answers

What are some problems associated with the use of Figure 8 descenders?

<p>They can twist any rope that goes through them (A)</p> Signup and view all the answers

What is the main concern with using locked carabiners in rescue situations?

<p>The gate might accidentally open when under load (C)</p> Signup and view all the answers

What should be done if carabiners have gates that stick or will not close?

<p>Discard them if they cannot be fixed by blowing out the lock and hinge with compressed air (C)</p> Signup and view all the answers

Why should carabiner locks be tightened before loading?

<p>To prevent accidental unlocking during loading (C)</p> Signup and view all the answers

What is the purpose of allowing a prusik to slip before setting on the rope?

<p>To reduce the shock by absorbing some of it (A)</p> Signup and view all the answers

What length is the 8mm prusik cord cut to for creating long prusiks for 1/2-inch rope?

<p>70 inches (C)</p> Signup and view all the answers

What type of construction is being replaced with needle loom construction for webbing?

<p>Spiral weave/shuttle loom (D)</p> Signup and view all the answers

What is the breaking strength of one-inch webbing?

<p>4,000 pounds (C)</p> Signup and view all the answers

What is the pick-off strap length typically used for connecting the rescuer and victim during a rescue operation?

<p>48 inches (D)</p> Signup and view all the answers

What type of harnesses are preferable for rescue team equipment caches?

<p>Adjustable harnesses (C)</p> Signup and view all the answers

What are the four basic parts of a carabiner?

<p>Gate, Spine, Lock, Hinge (B)</p> Signup and view all the answers

What is the breaking strength range for aluminum carabiners?

<p>$6,070$ to $6,745$ pounds (A)</p> Signup and view all the answers

What are the advantages of aluminum carabiners over steel carabiners?

<p>$4$, $5$, and $6$ (A)</p> Signup and view all the answers

What material should be used in rescue applications for carabiners?

<p>Steel only (C)</p> Signup and view all the answers

Which type of webbing is better when snapping into carabiners due to its ability to maintain strength efficiently?

<p>Nylon tubular webbing (A)</p> Signup and view all the answers

What is the color-coding used for webbing lengths in the Rescue Systems 1 course?

<p>Green, Yellow, Blue, Orange - 5 Feet, 12 Feet, 15 Feet, 20 Feet (B)</p> Signup and view all the answers

What should be the distance between the reeved bars along the brake-bar rack to control friction?

<p>Closer together for maximum friction (B)</p> Signup and view all the answers

What is the purpose of the training groove in the 1-inch top bar of the brake-bar rack?

<p>To ensure proper reeving of the rack (B)</p> Signup and view all the answers

What is the primary function of the mechanical ascender in the fire service?

<p>Ascending a fixed rope (B)</p> Signup and view all the answers

What should be done if an ascender has a cracked sleeve according to the text?

<p>Remove from service immediately (B)</p> Signup and view all the answers

What is the purpose of edge protection in rope and webbing systems?

<p>Prevent wear on the rope (A)</p> Signup and view all the answers

What is the recommended action if edge rollers are stuck or damaged?

<p>Remove from service immediately (A)</p> Signup and view all the answers

What material can edge guards be constructed from, according to the text?

<p>Canvas (A)</p> Signup and view all the answers

What should be done if an anchor plate is found to be deformed?

<p>Remove from service (C)</p> Signup and view all the answers

What is the primary function of rescue knots in rope rescue systems?

<p>Key link in all rope rescue systems (A)</p> Signup and view all the answers

What action should be taken if a mechanical ascender has a cracked sleeve according to the text?

<p>Remove from service immediately (B)</p> Signup and view all the answers

What is the purpose of using all-metal rescue pulleys in technical rope rescue according to the text?

<p>To enhance strength (B)</p> Signup and view all the answers

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