RBT(Rigging/Techniques) Flashcards
rigging
the assembly of rope and components used to form anchoring and associated rope systems.
3 principles of rigging
safety
efficiency
effectiveness
when rigging, keep it _____ .
simple
5 anchoring principles
use a bombproof one if possible such as a
BFR.
use edge protection for rope.
if in doubt, use a secondary anchor or
create a load-sharing anchor.
test the anchor’s sturdiness prior to using.
visually inspect the anchor prior to using.
secondary anchors should be _____ the
primary anchor.
directly behind
minimize _____ between the primary and
secondary anchor
slack
For load-sharing anchors the angle
created where the 2 anchor systems come together must be less than _____ .
90 degrees
8 Bombproof Anchors
Steel beams Stairwell support beams Concrete columns BFRs Large trees Motor Vehicles Large machinery Secured eye bolts
directional
any rigging that changes the direction of the rope.
extending an anchor
creating another place to attach rope that
is in a better location the original anchor
point. normally done by extending/lowering a rope with a pulley attached…which allows the rope system to pass through the pulley
at that location. good for creating high points!
high point anchors are good for 3 things
lowering operations
traverse lines
elevating hauling systems
5 rigging precautions
kiss use edge protection avoid hard links avoid nylon on nylon contact safety check all components before loading
Rappelling
the controlled descent by using the friction
created by the rope passing through a
device.(descender)
“proper rappel”
is a controlled descent with minimal
physical effort.
Never _____ the rate of descent for a
specific height.
exceed
HFD uses 3 devices for descending
carabiner
figure 8 descender(8 plate)
rappel rack
Rate of descent(figure 8 descender) is controlled by which 2 things?
the angle of the rope coming out of the 8
plate.
the amount of rope contacting your body.
3 ways to increase the amount of rope
contacting your body and increasing
friction.
wrap tighter with brake hand.
pull rope into body with brake hand.
wrap rope around body towards the
small of your back.
Rescuers should be able to rappel utilizing
_____ .
either hand as a brake hand
Locking off the Figure 8
what does the guide hand do?
what does the brake hand do?
what do both hands do?
grips base of 8 plate and top of carabiner
and angles 8 plate towards the incoming
brake hand.
brings the rope up and behind the 8 plate
and between the rope and around the
ears (2x).
form a bight and bring it through the
opening of the 8 plate and wrap it
around the ears. then cinch tight. or…
form a bight and tie an overhand knot around the standing(loaded) line.
HFD uses Rappel Racks that are _____
only.
right-handed
When loading a rappel rack, _____ on the line.
keep tension