RBT EB Flashcards
What is the efficiency loss of a figure 8 on a bight?
20%
What is the efficiency loss of a double loop figure 8?
18%
What is the efficiency loss of an Alpine Butterfly knot?
25%
What is the efficiency loss of a Water knot?
36%
What is the minimum tensile strength of 7mm accessory cord?
2200 lbs
How much strength does nylon rope lose when wet?
10-15%
How is the 15:1 safety factor calculated
9000 lb min tensile strength divided by a 600 lb (2x300lb people) safe work load.
What is the efficiency loss of a double fisherman’s knot (prusik knot)
21%
Kern mantle strength breakdown
85% kern 15% mantle
What is the strength of 1” tubular webbing end to end.
4000 lbs
What is the Rescue 8 minimum tensile strength?
9000 lbs
What is the CMC Steel Rescue 8 actual rating?
45,000 lbs
What is the Pick Straps minimum Strength rating end to end?
5000 lbs
What is the Pick Straps minimum Strength rating doubled?
9000 lbs
What is the Anchor Straps minimum Strength rating end to end?
5000 lbs