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NFPA Technical Rescuer Certification study materials
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NFPA Technical Rescuer Certification practice questions

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Question 1General Rescue Operations and Safety

Which NFPA document specifies the job performance requirements for the individual technical rescuer at the Awareness, Operations, and Technician levels?

  1. NFPA 1670, Standard on Operations and Training for Technical Search and Rescue Incidents
  2. NFPA 1006, Standard for Technical Rescue Personnel Professional Qualifications Correct answer.
  3. NFPA 1561, Standard on Emergency Services Incident Management System and Command Safety
  4. NFPA 1983, Standard on Life Safety Rope and Equipment for Emergency Services

Explanation

NFPA 1006 sets the job performance requirements that an individual rescuer must meet in each specialty at the Awareness, Operations, and Technician levels. NFPA 1670 is the companion document that addresses the organization's or team's capability and training system rather than the individual credential.

Question 2General Rescue Operations and Safety

Rescuers at a trench collapse confirm that the only patient is deceased and no other victims are trapped. According to accepted rescue practice, operations should now shift to which mode?

  1. Recovery mode, in which the same hazard controls apply but the risk tolerance changes Correct answer.
  2. Standby mode, in which rescuers wait on scene until the medical examiner arrives
  3. Overhaul mode, in which the trench is immediately backfilled to restore the site
  4. Rescue mode, because the patient must still be removed from the trench

Explanation

Rescue mode applies when a viable victim exists and rescuers accept a calculated risk to reach that victim quickly. When no live victim remains, the operation shifts to recovery mode, where shoring, atmospheric monitoring, and entry controls still apply but the risk-benefit decision favors slow, low-risk methods over speed.

Question 3General Rescue Operations and Safety

During a multi-company rescue operation, the incident commander orders a personnel accountability report (PAR). What is being verified?

  1. That each company's equipment inventory matches the apparatus manifest
  2. That every rescuer on scene holds a current medical clearance
  3. That the rescue log for the operation has been completed and submitted
  4. That all personnel and their assigned companies can be accounted for by name and location Correct answer.

Explanation

A PAR is a roll call that confirms every responder and every company is accounted for, including current assignment and status. It is typically taken at benchmarks such as a change in strategy, a Mayday, or a shift in collapse indicators.

Question 4General Rescue Operations and Safety

The first-arriving rescue officer should complete a full 360-degree walk-around before committing crews. Which hazard is most likely to be found this way that would be missed from the front of the structure alone?

  1. The number of patients visible through the front window of the structure
  2. A bystander standing near the front door who may have witnessed the collapse
  3. A leaning chimney or undermined foundation that threatens the rescue area Correct answer.
  4. The location of the nearest water supply and the best apparatus parking area

Explanation

A complete walk-around exposes sides of the structure that are invisible from the front, where apparatus typically arrives. Rear and side views commonly reveal leaning walls, undermined foundations, utility connections, and egress routes that change the rescue plan or make front entry unsafe.

Question 5General Rescue Operations and Safety

An industrial rescue operation is divided into hot, warm, and cold zones. Which activity is appropriate in the warm zone?

  1. Parking apparatus and conducting media briefings
  2. Working in an IDLH atmosphere without respiratory protection
  3. Setting up the contamination reduction corridor and staging a backup entry team Correct answer.
  4. Establishing the incident command post and the family reception area

Explanation

The warm zone, or contamination reduction zone, is where decontamination, PPE doffing, and equipment transfer take place between the contaminated hot zone and the clean cold zone. Command posts, media areas, and family reception belong in the cold zone, while IDLH work belongs in the hot zone with appropriate protective equipment.

Question 6General Rescue Operations and Safety

Under NFPA 1983, what is the minimum breaking strength required for a life safety rope used in a rope rescue system?

  1. 3,000 lbf (13.3 kN)
  2. 10,000 lbf (44.5 kN)
  3. 5,000 lbf (22.2 kN) Correct answer.
  4. 15,000 lbf (66.7 kN)

Explanation

NFPA 1983 requires a minimum breaking strength of 5,000 lbf (22.2 kN) for life safety rope. Rope intended only for escape or for utility tasks has different requirements, which is why rope must be marked and tracked according to its certification.

Question 7General Rescue Operations and Safety

A confined space entry is being prepared. The initial atmospheric reading at the entry point is 19.0 percent oxygen, with no combustible gas and no toxic gas detected. What is the correct action?

  1. Prohibit entry until ventilation and retesting show oxygen at 19.5 percent or higher Correct answer.
  2. Enter, since neither flammable nor toxic gas was detected at the entry point
  3. Enter with a supplied-air respirator and make no other change to the entry plan
  4. Enter for no more than five minutes to remove the patient from the space

Explanation

The acceptable entry atmosphere is 19.5 to 23.5 percent oxygen, so a reading of 19.0 percent is oxygen-deficient even when no flammable or toxic gas is present. The space must be ventilated and retested, and monitoring must continue during occupancy because conditions change.

Question 8General Rescue Operations and Safety

Crews reach a vehicle resting on its wheels with a patient trapped inside. Before extrication begins, which action best reflects accepted vehicle rescue practice?

  1. Disconnect the battery and immediately begin cutting the roof away
  2. Inflate the tires to full pressure so the vehicle sits level
  3. Stabilize the vehicle on all four sides with cribbing and chocks, then assess the patient Correct answer.
  4. Place one wooden chock behind a rear tire and start extrication

Explanation

Stabilization comes before entry or cutting so the vehicle cannot shift when cribbing loads change or when tools push against the frame. Four-point cribbing and chocking, plus attention to suspension movement and fluid leaks, protect both the patient and the rescuers.

Question 9General Rescue Operations and Safety

A worker has been hanging in a full-body harness for about 15 minutes after a fall and is now pale, dizzy, and nauseated. After being lowered to a safe platform, which action is most appropriate?

  1. Keep the patient supine with legs elevated if tolerated, give oxygen, and monitor for shock Correct answer.
  2. Sit the patient upright and give water to drink while awaiting transport
  3. Have the patient stand and walk to the ambulance to restore normal circulation
  4. Lay the patient prone and apply a cervical collar before providing other care

Explanation

Prolonged dangling in a harness pools blood in the legs and can produce hypovolemic shock, and standing the patient suddenly can trigger a drop in venous return and cardiac arrest. Keep the patient supine, elevate the legs if tolerated, give oxygen, and transport for evaluation.

Question 10General Rescue Operations and Safety

At a trench rescue, excavated spoil and equipment must be kept back from the lip of the excavation. What is the standard minimum setback for spoil piles?

  1. 1 foot (0.3 m)
  2. 4 feet (1.2 m)
  3. 2 feet (0.6 m) Correct answer.
  4. 10 feet (3 m)

Explanation

Spoil, tools, and equipment are kept at least two feet (0.6 m) back from the trench lip to reduce surcharge loading on the walls and to keep objects from falling onto rescuers. The spoil also has to be placed so it does not block the access and egress route.

Question 11General Rescue Operations and Safety

At the start of a technical rescue, the first-arriving rescue officer is conducting scene size-up. Which outcome is the primary purpose of this size-up?

  1. Assigning every responder to a task before size-up is complete
  2. Preparing a media release while rescue operations continue
  3. Selecting the first entry rescuer by seniority
  4. Identifying hazards, victim status, and needed resources Correct answer.

Explanation

Scene size-up is the systematic gathering of information about hazards, victims, access, and resource needs before rescuers are committed. It supports a deliberate action plan rather than task assignment by seniority or public messaging. Committing responders before size-up is complete violates basic rescue safety practice.

Question 12General Rescue Operations and Safety

A rescuer at a technical rescue notices an unsafe shoring condition and believes a collapse is imminent. Under accepted rescue safety practice, what should the rescuer do?

  1. Ask the patient's family to approve a change in the plan
  2. Stop the operation and notify the rescue officer or safety officer immediately Correct answer.
  3. Continue the rescue until the rescue officer gives permission to withdraw
  4. Document the condition after the patient has been removed

Explanation

Rescuers must have the authority and responsibility to stop work when they recognize an imminent hazard. The correct immediate action is to stop the operation and notify command or the safety officer so the hazard can be addressed. Waiting for permission or completing the rescue first exposes the team to avoidable collapse risk.

Question 13General Rescue Operations and Safety

A rescue company is updating its incident safety program to address risk management, PPE, and accountability at technical rescue incidents. Which NFPA document is the primary standard for fire department occupational safety and health?

  1. NFPA 1983
  2. NFPA 1500 Correct answer.
  3. NFPA 1670
  4. NFPA 1006

Explanation

NFPA 1500 is the Standard on Fire Department Occupational Safety, Health, and Wellness Program. It addresses risk management, PPE, accountability, incident safety, and related fire department safety and health issues. The other documents cover rescue personnel qualifications, rescue operations and training, and life safety rope and equipment.

Question 14General Rescue Operations and Safety

A worker's arm is pinned in a conveyor at a manufacturing plant. Before rescuers begin dismantling the machine, what is the essential first step to control operational and stored energy?

  1. Cover the machine with a salvage tarp and cut the drive belt
  2. Isolate all energy sources and apply lockout/tagout with verification Correct answer.
  3. Ask the plant operator to jog the conveyor briefly to free the arm
  4. Use a hydraulic spreader to force the rollers apart immediately

Explanation

Lockout/tagout isolates electrical, hydraulic, pneumatic, gravitational, and other stored energy so the machine cannot move during rescue. Verification confirms that the energy isolation is effective before anyone places hands or tools into the machinery. Forcing or jogging the equipment can cause additional injury and is not an acceptable energy-control method.

Question 15General Rescue Operations and Safety

During a rope rescue over a concrete parapet, the haul line runs across a sharp edge. Which control best protects the life safety rope?

  1. Tie two ropes together at the edge to spread the load
  2. Place a padded edge protector and route the rope through it Correct answer.
  3. Allow the rope to rub until the concrete edge smooths
  4. Wet the rope so friction at the edge is reduced

Explanation

A padded edge protector shields the rope from abrasion and sharp-angle loading that can cut or weaken it. Ropes should be routed over protected edges and kept as straight as practical to reduce friction and damage. Tying ropes together, relying on wear, or wetting the rope does not protect the life safety line.

Question 16General Rescue Operations and Safety

A rescuer inside a collapsed structure becomes trapped and cannot self-extricate. What is the most appropriate immediate action on the radio?

  1. Declare a Mayday with location, situation, and needed resources Correct answer.
  2. Wait for the next scheduled radio check before reporting the entrapment
  3. Switch to a tactical channel and continue working quietly
  4. Ask another rescuer to report it after the rescue is complete

Explanation

A trapped rescuer should declare a Mayday immediately and provide the clearest available information: location, situation, and resources needed. Prompt notification allows command to redirect teams, maintain accountability, and initiate rescue of the rescuer. Delaying the report increases the risk of a prolonged, unreported entrapment.

Question 17General Rescue Operations and Safety

After 45 minutes of heavy physical work in encapsulating PPE at a rescue site, a member has a headache, confusion, and hot dry skin. What is the priority action?

  1. Continue the rescue until the operation is complete
  2. Remove the member from the hazard, begin cooling, and obtain medical evaluation Correct answer.
  3. Give the member a caffeinated drink and return to work without assessment
  4. Have the member remove PPE and rest in direct sunlight without monitoring

Explanation

Confusion with hot dry skin after heavy work in encapsulating PPE suggests heat stroke, a medical emergency. The member must be removed from the hazard, cooled promptly, and evaluated by medical personnel. Returning the member to work or delaying care can lead to severe deterioration.

Question 18General Rescue Operations and Safety

A rescue team arrives at a grain bin entrapment with no confirmed patient location. Which action should occur before rescuers enter the bin?

  1. Enter at once with a rope tied around each rescuer's waist
  2. Energize the auger to lower the grain level around the patient
  3. Cut a large opening at the bin base to drain the grain quickly
  4. Isolate and lock out power, then plan with ventilation Correct answer.

Explanation

Grain bin entry requires isolation of augers and other energy sources before entry, along with a rescue plan and atmospheric monitoring. Ventilation and lockout help control engulfment and atmospheric hazards, while unplanned entry can trap additional rescuers. Draining grain or energizing equipment can cause the patient or rescuers to be pulled deeper into the grain.

Question 19General Rescue Operations and Safety

Rescuers are working in a partially collapsed parking structure when the structure begins to make new noises. Which observation is the clearest warning of imminent secondary collapse?

  1. Steady dust settling from the initial collapse
  2. New cracks, shifting debris, and structural groaning Correct answer.
  3. A generator running outside the collapse area
  4. A patient monitor alarming in the treatment area

Explanation

New cracks, shifting debris, and structural groaning indicate that load paths are changing and the structure may be failing further. These signs should prompt immediate evacuation and reassessment by a structural specialist. Settling dust, outside equipment noise, and patient monitor alarms do not by themselves indicate imminent structural failure.

Question 20General Rescue Operations and Safety

An employer plans to rely on an off-site rescue service for permit-required confined space entries. Under OSHA 29 CFR 1910.146, what must the employer do?

  1. Evaluate the service's response capability and inform it of the space hazards Correct answer.
  2. Use entrant self-rescue as the only planned rescue method
  3. Rely on the service without a site visit if all entrants are trained
  4. Assume the service can respond because it is a municipal fire department

Explanation

OSHA requires the employer to evaluate a prospective rescue service's ability to respond timely to a rescue summons and to inform the service of the hazards it may encounter. The employer must also provide the rescue service with access to permit spaces so it can plan and practice. Assuming capability, skipping a site visit, or relying only on self-rescue does not satisfy the rescue-service requirements.

Question 21Rope Rescue

In a kernmantle life safety rope used for rope rescue, which component carries the majority of the applied load?

  1. The inner core, because its continuous fibers bear the tension Correct answer.
  2. The rope coating, because it bonds the fibers into a load path
  3. The outer sheath, because its woven jacket grips hardware
  4. The end splices, because they transfer force to the core

Explanation

Kernmantle rope has a core of continuous fibers that carries most of the tensile load, while the sheath protects the core from abrasion, dirt, and ultraviolet damage. The sheath contributes little to overall strength, so core damage is the critical inspection concern.

Question 22Rope Rescue

Which knot is most appropriate for forming a secure loop at the end of a rescue rope for attachment to an anchor while remaining easy to inspect?

  1. Prusik hitch
  2. Munter hitch
  3. Clove hitch around the anchor
  4. Figure-eight on a bight Correct answer.

Explanation

A figure-eight on a bight forms a fixed loop that is easily recognized and inspected, retains a high percentage of rope strength, and is a standard anchor attachment knot in rope rescue. The other choices are hitches used for adjustment, friction control, or load transfer rather than a fixed end loop.

Question 23Rope Rescue

Why do rope rescue teams generally use low-elongation life safety rope rather than dynamic climbing rope for lowering and raising systems?

  1. Dynamic rope is stronger but cannot be tied with rescue knots
  2. Low-elongation rope limits stretch and reduces shock loading on the system Correct answer.
  3. Dynamic rope has a larger diameter and will not fit rescue hardware
  4. Low-elongation rope is easier to inspect for core damage

Explanation

Low-elongation rope stretches little under load, so a suspended load does not bounce or generate excessive shock when the system is loaded, and clearance below the rescuer is easier to maintain. Dynamic rope is designed to absorb fall energy and would allow undesirable stretch in a lowering or raising system.

Question 24Rope Rescue

A two-point anchor system supports a rescue load. As the angle between the two anchor legs increases from 60 degrees to 120 degrees, what happens to the force on each anchor leg, assuming equal load sharing?

  1. It becomes zero because the legs cancel each other
  2. It remains equal to half the load regardless of the angle between the legs
  3. It decreases because the legs share the load more evenly as the angle opens
  4. It increases until each leg approaches the full load at 120 degrees Correct answer.

Explanation

Vector resolution shows that as the angle between anchor legs widens, tension in each leg rises; at 120 degrees each leg carries approximately 100 percent of the load, and beyond that the force exceeds the load. Keeping the angle at 90 degrees or less, and ideally near 60 degrees, limits this force multiplication.

Question 25Rope Rescue

A 3:1 Z-rig is used to raise a 300-pound load. Ignoring friction, the haul line tension is 100 pounds. If the system operates at 50 percent efficiency because of friction, what haul line tension is required to support the load?

  1. 300 pounds
  2. 50 pounds
  3. 200 pounds Correct answer.
  4. 100 pounds

Explanation

Theoretical mechanical advantage is 3:1, so the ideal haul tension is 300 divided by 3, or 100 pounds. At 50 percent efficiency, only half of that theoretical advantage is realized, so the required tension doubles to 200 pounds. Friction at pulleys, carabiners, and rope bends always reduces actual mechanical advantage.

Question 26Rope Rescue

In a two-rope lowering system, what is the primary function of the belay line?

  1. To serve as a separately operated backup if the mainline fails Correct answer.
  2. To increase the mechanical advantage of the lowering system
  3. To allow the rescuer to descend without using a harness
  4. To equalize the load between the two anchor points

Explanation

The belay line is a redundant system controlled by a separate belayer; it is kept ready to catch the load if the mainline, anchor, or operator fails. It is not a mechanical advantage component or an anchor equalizer, and it does not replace the harness.

Question 27Rope Rescue

Why should a rope that passes over a sharp concrete edge during a lower be routed through an edge roller or heavy padding?

  1. To increase the rope's elongation and soften the lower
  2. To keep the rope centered on the anchor carabiner
  3. To prevent abrasion and cutting that can reduce rope strength Correct answer.
  4. To reduce the mechanical advantage needed to raise the load

Explanation

Sharp edges concentrate force and abrade or cut the sheath and core as the rope moves under load, drastically reducing strength. Edge protection such as a roller or padded edge distributes contact and lets the rope move with less damage.

Question 28Rope Rescue

A prusik hitch is being used as a friction hitch on a 12 mm rescue rope. Which practice is correct?

  1. Tie the hitch so the wraps cross and jam against the carabiner
  2. Use accessory cord of larger diameter than the main rope so the hitch grips tightly
  3. Tie the hitch with the same rope used for the mainline to avoid strength loss
  4. Use smaller-diameter accessory cord and dress the wraps neatly Correct answer.

Explanation

A prusik grips by constricting the main rope, so the accessory cord must be smaller in diameter, commonly about 60 to 80 percent of the main rope diameter, and the wraps must be neatly dressed side by side. Larger or same-size cord will not grip reliably, and crossed wraps can bind or fail to release.

Question 29Rope Rescue

A rescue team builds a self-equalizing anchor using a sliding-X with a length of webbing. Which statement best describes the behavior of this system if one anchor point fails?

  1. The system may extend and shock-load the remaining anchor Correct answer.
  2. The remaining anchor immediately carries the load with no movement because the system is pre-equalized
  3. The load is released completely because the sliding-X is designed to fail safe
  4. The system doubles its mechanical advantage to compensate for the lost anchor

Explanation

A sliding-X equalizes only while both anchors share the load; if one anchor fails, the webbing can slide and the load can shift, allowing extension and a dynamic shock load on the remaining anchor. Limiter knots or a pre-equalized anchor reduce this extension and are preferred where anchor failure is credible.

Question 30Rope Rescue

During a lowering operation, a rescuer uses a munter hitch on a locking carabiner as the friction device. Which action is most important for maintaining control of the load?

  1. Use a non-locking carabiner so the hitch can be released quickly
  2. Keep firm tension on the brake strand, angled away from the hitch Correct answer.
  3. Tie off the brake strand to the anchor so both hands are free
  4. Keep the brake strand parallel to the load strand so the hitch rotates freely

Explanation

With a munter hitch, control depends on the brake strand being held under tension and angled away from the hitch so friction is applied; if the brake strand is slack or parallel, the hitch can slip. A locking carabiner is required because the hitch loads the gate area, and tying off the brake strand is appropriate only when intentionally pausing.

Question 31Rope Rescue

In rope rescue, what is the primary purpose of an artificial high directional (AHD)?

  1. To double the mechanical advantage of the belay system
  2. To eliminate the need for a separate safety line
  3. To keep the haul line clear of an edge or obstacle Correct answer.
  4. To provide the primary anchor for the rescuer's harness

Explanation

An AHD is a freestanding or anchored frame that changes the direction of the haul line and lifts it above an edge, reducing friction and rope damage. It does not multiply mechanical advantage by itself or replace the belay line.

Question 32Rope Rescue

A rope rescue team records each use and inspection of a life safety rope in a rope log. What is the main purpose of this record?

  1. To document rescuer payroll hours for each call
  2. To track use and exposure history for retirement decisions Correct answer.
  3. To prove the rope meets the manufacturer's warranty terms
  4. To calculate the mechanical advantage used at each incident

Explanation

A rope log documents inspections, incidents, loads, and exposures such as chemicals or abrasion so the team can retire the rope at the appropriate time. Warranty, payroll, and mechanical advantage calculations are not its purpose.

Question 33Rope Rescue

When radio communication is unavailable during a rope rescue, which method should team members use to relay critical commands?

  1. Relying on whistle blasts with no code
  2. Sending text messages between phones
  3. Using a prearranged set of hand signals Correct answer.
  4. Shouting voice commands across the site

Explanation

Standard hand signals provide clear, immediate communication when radios fail or noise prevents voice commands. They must be prearranged and understood by all team members.

Question 34Rope Rescue

Which knot is appropriate for joining two life safety ropes of similar diameter to extend a lowering line?

  1. Water knot
  2. Munter hitch
  3. Figure-eight follow-through
  4. Double fisherman's knot Correct answer.

Explanation

The double fisherman's knot, also called the grapevine, is a bend designed to join two ropes and is suitable for ropes of similar diameter. A figure-eight follow-through forms a loop, a water knot is used in webbing, and a Munter hitch is a friction device.

Question 35Rope Rescue

A single picket anchor is not strong enough for the expected rescue load. What is the standard way to improve the anchor?

  1. Drive the same picket deeper and attach the rope higher
  2. Replace the picket with a single nut and a cam device
  3. Drive additional pickets in a line and connect them with webbing Correct answer.
  4. Attach the load to the picket with a Munter hitch

Explanation

Multiple pickets driven in a line and tied together share the load, increasing anchor capacity. Attaching higher or using a single small device does not provide the same load distribution.

Question 36Rope Rescue

What is the primary function of a litter bridle in a vertical rope rescue?

  1. To provide flotation for the litter during water rescue
  2. To replace the need for a belay line on the litter
  3. To attach the litter to the rope system and control its orientation Correct answer.
  4. To measure the exact weight of the packaged patient

Explanation

A litter bridle is the rigging that connects the litter to the main and belay lines, distributing the load and helping keep the litter in the desired orientation. It is not a flotation device, a substitute for a belay line, or a scale.

Question 37Rope Rescue

A highline is tensioned with very little sag to gain clearance over an obstacle. What is the primary effect on the line and anchors?

  1. Line tension decreases because the rope is straighter
  2. The safety factor increases automatically with less sag
  3. Line tension and anchor loads increase significantly Correct answer.
  4. Anchor loads decrease because the span is shorter

Explanation

As a highline is pulled straighter, the tension needed to support the same load rises sharply, and that tension is transferred to the anchors. Less sag does not reduce anchor loads or increase the safety factor.

Question 38Rope Rescue

Why is a load-releasing hitch installed in an anchored rope rescue system?

  1. To act as the primary friction device during descent
  2. To lock the rope permanently and prevent movement
  3. To allow controlled transfer or release of a loaded system Correct answer.
  4. To increase the mechanical advantage of the lowering device

Explanation

A load-releasing hitch lets rescuers transfer or release tension under control when the main system must be adjusted, such as during a pickoff or anchor change. It is not a mechanical advantage device, a permanent lock, or a primary friction device.

Question 39Rope Rescue

A compound rope rescue system combines a 3:1 mechanical advantage with a 2:1 mechanical advantage. Ignoring friction, what is the theoretical total mechanical advantage?

  1. 9:1
  2. 1.5:1
  3. 6:1 Correct answer.
  4. 5:1

Explanation

In a compound system, the mechanical advantages multiply: 3 x 2 = 6, so the theoretical advantage is 6:1. Adding the values would incorrectly give 5:1, and 9:1 would result from compounding two 3:1 systems.

Question 40Rope Rescue

A belay line is rigged with several feet of slack while a rescuer is lowered on the main line. Why is this a serious hazard?

  1. The belay line will fail first because it is unloaded
  2. The main line will lose all mechanical advantage
  3. A fall onto the slack belay line can create a shock load Correct answer.
  4. The belay line will automatically release the load

Explanation

Excess slack allows a falling load to accelerate before the belay line engages, producing a dynamic shock load that can exceed the strength of the system. A belay line should be kept snug enough to arrest a failure without introducing unnecessary slack.

Question 41Rope Rescue

In rope rescue, a locking carabiner used to connect a main line to a life-safety anchor must have which gate feature?

  1. A screw-lock gate left unlocked for speed
  2. A non-locking gate for rapid attachment
  3. A wire gate designed for climbing quickdraws
  4. A gate that requires at least two distinct motions to open Correct answer.

Explanation

Life-safety carabiners must use a locking gate so the load cannot accidentally escape during a rescue. A gate requiring multiple distinct motions reduces the chance of roll-out or unintentional opening against rock, rope, or equipment. Non-locking gates and unlocked screw gates are not acceptable for critical anchor connections.

Question 42Rope Rescue

During a rope rescue lower, which device is specifically designed to provide adjustable friction and control the rate of descent?

  1. A prusik hitch
  2. A brake bar rack Correct answer.
  3. A mechanical ascender
  4. An edge roller

Explanation

A brake bar rack is a descent-control device that adds friction by routing the rope over adjustable bars, allowing the operator to control lowering speed. Prusik hitches, ascenders, and edge rollers serve other functions and are not designed as primary lowering friction devices. The brake hand remains on the rope as the final control.

Question 43Rope Rescue

A team must anchor a rescue rope to a large mature tree and later remove the rope after it has been loaded. Which anchoring method is most appropriate?

  1. Wrap the rope once around the trunk and tie a clove hitch
  2. Wrap the rope several times around the trunk and finish with a tensionless hitch Correct answer.
  3. Pass the rope through a single carabiner clipped to a tree strap
  4. Tie a bowline around the trunk and cinch it tight

Explanation

A tensionless hitch uses multiple wraps around a large anchor so friction carries most of the load, leaving the finishing knot easy to untie after loading. This is well suited to a tree anchor because it avoids a tightly cinched knot and reduces rope damage. A single wrap or single carabiner does not provide the same secure, removable attachment.

Question 44Rope Rescue

While inspecting a nylon webbing anchor sling, a rescuer finds a small area of glazed, melted fibers near the stitching. What is the correct action?

  1. Cut off the glazed area and re-sew the sling
  2. Return it to service because the glazed area is cosmetic
  3. Remove it from service and tag or destroy it as unserviceable Correct answer.
  4. Mark it for training use only

Explanation

Glazed or melted fibers indicate heat damage that can significantly reduce webbing strength, even when the damaged area appears small. Life-safety webbing with heat damage must be retired from service and clearly marked or destroyed so it cannot be used accidentally. Field repair or downgrading to training use is not acceptable for damaged life-safety equipment.

Question 45Rope Rescue

A rescuer is preparing to rappel using a descender. What is the purpose of attaching a third-hand prusik below the descender?

  1. To replace the descender as the primary friction device
  2. To back up the rappel if the brake hand releases Correct answer.
  3. To connect the rappel rope directly to the anchor
  4. To increase descent speed by adding friction

Explanation

A third-hand prusik is a friction hitch attached below the descender and controlled by the rescuer. If the brake hand releases the rope, the hitch can grip and arrest the rappel, providing an additional safety backup. It supplements rather than replaces the descender and the brake hand.

Question 46Rope Rescue

A patient is packaged in a litter for a vertical raise. Which practice is correct?

  1. Leave the patient's arms free outside the straps for balance
  2. Attach the raising line directly to the patient's harness
  3. Use a bridle and secure the patient with multiple straps Correct answer.
  4. Secure the patient with a single strap across the chest

Explanation

A litter bridle attaches the litter to the raising system and helps keep the litter stable during a vertical raise. The patient must be secured with multiple straps, including chest and hip areas, so the body cannot shift or fall from the litter. Directly attaching the raising line to the patient or using a single strap does not provide adequate protection.

Question 47Rope Rescue

In a highline rope rescue system, what is the primary function of the control line (tag line)?

  1. It provides the primary belay for the highline
  2. It carries the full weight of the suspended load
  3. It tensions the highline before the load is attached
  4. It moves the suspended load horizontally along the highline Correct answer.

Explanation

The highline track line supports the suspended load, while the control line is used to pull or guide the load horizontally along the track line. The control line helps position the litter or rescuer over the target and manage movement. It does not carry the main load, serve as the primary belay, or tension the highline.

Question 48Rope Rescue

A rescuer is suspended on a lowering system and must be converted to a raising system. What is the critical first step before releasing the lowering device?

  1. Attach the haul line to the rescuer's harness and begin pulling
  2. Secure the load with an independent system or tensioned belay before transferring the load Correct answer.
  3. Remove the belay line to prevent entanglement
  4. Have the rescuer ascend the main line hand over hand

Explanation

Before releasing or transferring the primary lowering device, the load must be secured by an independent system or a properly tensioned belay. This prevents an uncontrolled drop while the rigging is changed from lower to raise. The transfer is planned so at least one reliable system always supports the rescuer.

Question 49Structural Collapse Rescue

A collapse in which the upper floors of a building drop essentially straight down onto the floors below, stacking the floor assemblies on top of one another, is best described as which collapse pattern?

  1. V-shape collapse
  2. Cantilever collapse
  3. Lean-to collapse
  4. Pancake collapse Correct answer.

Explanation

Pancake collapse occurs when the exterior walls remain relatively intact while the interior floor supports fail, allowing floors to stack vertically on top of one another. Void spaces are limited, and victims are often trapped between floor slabs, so rescuer access usually requires breaching or tunneling.

Question 50Structural Collapse Rescue

In structural collapse rescue, a void space is best described as which of the following?

  1. The gap between a shore and the wall it supports
  2. The boundary between the hot zone and the warm zone
  3. The clearance beneath a pneumatic lifting bag
  4. A pocket or void in debris where a victim may survive Correct answer.

Explanation

A void space is an open pocket or cavity created within collapsed structural members, contents, or debris where a victim may be trapped and may survive. Rescuers give priority to locating and accessing survivable voids because they offer the best chance of live victim recovery.