RRC Rope Systems & Throw Bag Techniques 1 — Questions and Answers
Question 1: What is the primary purpose of a throw bag in swiftwater rescue?
- To anchor a rescuer to the riverbank
- To deliver a rope quickly to a swimmer in distress (Correct answer)
- To mark hazards in the river channel
- To tow rescue watercraft
Correct answer: To deliver a rope quickly to a swimmer in distress
A throw bag allows rescuers to rapidly deploy a rope to a victim in moving water so the victim can be pulled to safety.
Question 2: When throwing a rescue bag to a victim, what should the rescuer always hold onto before releasing the throw?
- The bag itself
- The carabiner at the rope end
- The free end of the rope (Correct answer)
- A whistle to signal the victim
Correct answer: The free end of the rope
The rescuer must grip the free end of the rope before throwing so the rope pays out of the bag and a connection is maintained to shore.
Question 3: What type of rope construction is most commonly specified for rescue throw bags because it minimizes stretch and floats on water?
- Twisted nylon
- Static kernmantle polyester
- Dynamic climbing rope
- Polypropylene braid (Correct answer)
Correct answer: Polypropylene braid
Polypropylene braid is standard for throw bags because it floats, is highly visible, and has low stretch for efficient pulling.
Question 4: What is the 'pendulum effect' in a throw bag rescue?
- The rope swinging the victim into an eddy or the shore as current acts on the rope (Correct answer)
- The oscillation of the throw bag mid-flight affecting accuracy
- The bouncing of the rope off rocks downstream
- The twisting of the rope caused by water turbulence
Correct answer: The rope swinging the victim into an eddy or the shore as current acts on the rope
When a victim grabs the rope, current acting on the rope swings them like a pendulum toward the downstream shore or eddy where the rescuer is anchored.
Question 5: What is the recommended maximum functional rope length for a standard river rescue throw bag used in Class III–IV conditions?
- 15 meters (50 feet)
- 25 meters (80 feet) (Correct answer)
- 40 meters (130 feet)
- 50 meters (165 feet)
Correct answer: 25 meters (80 feet)
A 25-meter (80-foot) rope is the standard because longer ropes are difficult to repack quickly and create entanglement risk on fast rivers.
Question 6: When repacking a throw bag for rapid redeployment, what is the correct method?
- Coil the rope neatly in figure-eight loops
- Stuff the rope loosely into the bag so it feeds freely (Correct answer)
- Daisy-chain the rope before inserting
- Wet the rope first to reduce friction
Correct answer: Stuff the rope loosely into the bag so it feeds freely
Stuffing the rope loosely (not coiling) allows it to feed out of the bag without tangling when thrown.
Question 7: What body position should a shore-based rescuer adopt before throwing a rescue bag to maximize stability and pulling power?
- Standing upright with feet together
- Kneeling with both knees on the ground
- Staggered athletic stance with knees bent, leaning back (Correct answer)
- Sitting at the water's edge with legs extended
Correct answer: Staggered athletic stance with knees bent, leaning back
A staggered stance with bent knees and weight shifted back provides a stable base so the rescuer isn't pulled into the water when the rope goes taut.
RRC Rope Systems & Throw Bag Techniques 1
What is the primary purpose of a throw bag in swiftwater rescue?