Rescue Technician Flashcards by Wade Jenkins

General Use “G” rating for Carabiner and Pulleys

Carabiner major axis 40 kN (8,992 lbf)
Pulley 36 kN (8,093 lbf)
Used everywhere in rigging

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Technical Use “T” rating for Carabiner and Pulleys

Carabiner major axis 27 kN (6,069 lbf)
Pulley 22 kN (4,946 lbf)
Used to support a tech only (One person load)

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Safety factor for static loads

15 to 1 Safety Factor

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Max dynamic and static weight for one person

Static = 300 lbs
Dynamic = 20 kN

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Anchors must be capable of supporting how many pounds?

5000 lbs. per
employee attached

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How are low and high angle rescue differentiated from each other?

In Low Angle Rescuers are predominantly supported by themselves and not the rope rescue system. In High Angle Rescuers are predominantly supported by the rope rescue system.

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How heavy is a rescue load?

2 kN or 450 lbs
Accounts for rescuer, equipment, and victim

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Max load a 1/2” rope can take for high angle rescue (60-90 degrees)

280 kg
Accounts for 2 rescuers, equipment, and a victim

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Max load a 1/2” rope can take for steep angle rescue (40-60 degrees)

400 kg

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One Rescuer + Equipment =

100kg / 1 kN

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One Rescuer + Equipment + Victim =

200kg / 2 kN

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Two Rescuer + Equipment + Victim =

280kg

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Three Rescuer + Equipment + Victim =

360kg

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Four Rescuer + Equipment + Victim =

440kg

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SSSF

-Static System Safety Factor

-The ratio between the equipment breaking strength and the maximum expected static
force

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DSF

-Dynamic Safety Factor (DSF)

-The strength of the system to protect against the dynamic impact force associated with a
falling load

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The Two Categories of equipment

Software
■ Rope
■ Webbing
■ Prusik Loops
■ Harnesses

Hardware
■ Carabiners
■ Pulleys
■ Descent Control Devices

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What are the 2 parts of kernmantle rope?

Kern - Core. 75% of strength.
Mantle - Sheath. 25% of strength.

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1/2” rescue rope has a minimum breaking strength of how much?

40 kN (9,000 pounds)

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What type of rope do rescue techs use?

Static kernmantle

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What type of rope do rock climbers use?

Dynamic Kernmantle

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What is accessory rope?

8mm Kernmantle

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Common anchor slings (anchor with webbing)

Redundant loop
-Webbing doubled up and double wrapped around anchor

Wrap 3 pull 2
-Wrap 3 times, secure with a water knot
-Put water knot at base of anchor

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What is the most common webbing size?

1 inch

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What are the 2 types of webbing? What are the 2 sub types?

Flat Tubular -Needle loom - Flat laid over and stitched into a tube -Shuttle loom - All one tube

What are the lengths of Green, Yellow, Blue, and Orange webbing?

Green= 5 ft Yellow = 12 ft Blue = 15 ft Orange = 20 ft

Uses for a Load Releasing Device?

-Passing a knot through the system -Change over -Has a slight shock absorption

What is the minimum breaking strength of a Load Releasing Device?

45 kN (10,000 lbf)

Class 1 Harness

Personal escape harness Rigger's belt Capable of carrying one persons weight

Class 2 Harness

Capable of carrying 2 people's weight Only a seat harness

Class 3 Harness

Capable of carrying 2 people's weight Seat and chest harness

What are the 4 components of a carabiner?

- Spine - Gate - Hinge - Lock

What are carabiner made of?

Steel or aluminium

What are 3 ways of misusing a carabiner?

- Side loading - Tri-axial loading (3 directions of loading from 3 lines) - Locking or unlocking when under load

What does the rope weave through on the Brake Bar Rack?

Friction Bars (there are 6)

What is the Brake Bar Rack minimum breaking strength?

22 kN (5,000 lbf)

What is the Figure 8 Plate minimum breaking strength?

22 kN (5,000 lbf)

What are the components of a Figure 8 Plate?

- Small ring - Large ring - Ears

What are the components of a Brake Bar Rack?

- U-shaped steel rod frame - 6 Friction Bars - Guide bar - Tie off bar - Welded eye

What does MPD stand for?

Multi-Purpose Device

What are the components of a Multi-Purpose Device?

➢ Anchor Attachment ➢ Becket Attachment ➢ Release Handle ➢ Parking Brake ➢ Pulley with one-way bearing

What can a MPD be used for?

- Pulley - Descent Control Device - Belay line

What are the 3 types of decent control devices in rope rescue?

- MPD - Brake Bar Rack - Figure 8 Plate

What is the downside to a figure 8 plate?

It is hard to add more resistance for heavy loads

What are the components of a pulley? (There is 4)

- Axle - Bearing - Sheave - Side plates

What does a Mechanical Grab Device Do? (2 things)

- Ascender - Haul Cam - It takes the place of a Prusik

What are the components of a Mechanical Grab Device?

- Cam - Shell - Pin

What is used to organize a rigging system near the anchor?

An Anchor Plate

What is the anchor plate minimum breaking load?

36 kN (8,000 lbf)

What can be used as edge protection for a rope?

- Aluminum wheels and frames - Canvas - Plastic - Firehose

What does RPM stand for?

Resistance - Decent Control Device Pulley - Mechanical advantage Miner - Belay system

A knot in rope reduces the the strength of the rope by how much?

33%

A knot in tubular webbing decreases the strength by at least how much?

45%

What are the Tail Length Minimums ➢ Figure Eight knots and bends ➢ Overhand knots and bends ➢ Half Hitches (webbing or rope) ➢ Double Overhand (prusik)

➢ Figure Eight knots and bends– 6 inches ➢ Overhand knots and bends – 2 inches ➢ Half Hitches (webbing or rope) – 2 inches ➢ Double Overhand (prusik) –1 to 2 inches

What is the acronym for how to pick a good anchor?

Eastern'r E - Equally loaded A - Angles are interior S - Strong enough T - Timely set up R - Rigid, no slack in system N - No shock loading on back up anchor R - Redundant anchors for back up

What is the picket system angle?

15 degrees away from the load

How long are pickets? How deep must they be driven into the ground?

4' long and must be driven 2-3' into the ground

What is the load capacity for 1-1-1 picket system in hard ground?

5,000 pounds

What is the load capacity for a single picket?

700 pounds

How many feet of lifeline is needed for a windlass? How much webbing?

- 20'of lifeline - 40' of webbing

What is the advantage of a triangular picket system?

Direction of the load There is no increase in the load capacity

When is a tagged anchor system used?

-When the anchors are far apart because the self adjusting sling must be close together

What is the max angle of a multi-point self adjusting sling anchor?

90 degrees (with the load line being where the angles meet)

What is an AZTEK Elite Kit?

It is a kit that you wear as a travel restriction when working near a cliff

What test examines every component of a system to locate any “_________.” If one point fails, is there a redundant backup to prevent catastrophic failure?

"Critical Point" Critical Point Test

What is the Whistle Test?

If a whistle were sounded, and every rescuer let go of the ropes, would the system properly engage and prevent a fall?

Rescue Technician Flashcards

(66 cards)