BOOK 29 Truck Operations Manual- ROPE SYSTEMS Flashcards
Main line rope, feet, and color?
300 ft of 1/2” static kernmantle, white with red or blue strip running through it
In the lifeline construction, what is the outer layer and what is the inner layer?
Tightly woven sheath ( mantle ) - outer layer
Braided core (kern) - inner layer
The high strength core (Kern) can carry up to ___% of the load with the cover (Mantle) designed primarily for protection against abrasion.
90%
This rope is rated at ______ pounds and weighs ___ pounds per –100 feet,
10,000lbs
7 lbs per 100”
What is the working load of the lifeline?
666 lbs
The best way to remove dirt particles from a rope is to place the rope in a mesh bag or a pillowcase, place in a washing machine on gentle cycle and wash in cold water. Use a mild chemical free soap such as ________ , _________, or ________ , in the wash cycle.
Lifeline cleaner
Ivory snow
Woolite
Melting point for the km-III static kernmantle rope?
450 degrees
When marking the ropes only used approved markers such as
Carter marks a lot
Stanford sharpie
Bonney-smith magic marker
Log the rope as soon as you receive it, log all training, emergency incidents and monthly checks on form ____.
F- 975
Rating of webbing?
4000 lbs
Colors and length of webbing?
Blue- 5 ft
Yellow- 12 ft
Red- 20 ft
Size and rating of accessory cord used to make LRH?
8mm
3,630 lbs
What are the D shaped carabiners rated to?
9000 lbs
The brake bar rack comes with six aluminum bars attached to it. The welded eye, on one end, is used for attachment and is rated at ______ lbs.
10,000 lbs
Minimum number of bars while using the break bar rack?
3
For a single person load (rappel or lower), start with ____ bars when using the break bar rack.
4
For a two-person loads, start with ____ bars when using the break bar rack.
5
Rappelling or lowering operations over ___ feet a brake bar rack should be used, due to the twisting of the rope.
75 ft
What 2 types of pulleys are used in the LAFD?
- 2 1/2” aluminum prusik minding
2. 4” stainless steel
Proper tightening order for class III full body harness?
- Waist straps
- Leg straps
- Chest straps
8mm accessory cord used for the LRH is what length?
20 ft
Pickets: Various patterns and configurations. Pickets should be three foot in length, one inch round steel stock preferred. The pickets should be pounded ___ feet into the ground, at a ___ degree angle, away from the object.
2 ft
15 degree angle
Picket system lbs ratings?
Single: 1-1: 1-1-1: 2-1: 3-2-1:
Single: 700lbs
1-1: 1,400lbs
1-1-1: 1,800lbs
2-1: 2,000lbs
3-2-1: 4,000lbs
PROCEDURES FOR PASSING A KNOT IN THE LOWERING SYSTEM MAIN LINE. Step 1. Pass the main line through the brake bar rack until the knot is about ___ inches from the bottom of the brake bar rack.
6”
PROCEDURES FOR PASSING A KNOT IN THE BELAY LINE SYSTEM. First step is to Pass the belay line through the tandem prusik belay until the knot is about ___ to ___ inches from the tandem prusiks.
6 to 10”
Minimum number of members needed for a 2 line belay system?
4
One Rescuer
One Belay / Safety Line Tender
One Main Line Tender
One Safety Member, Checks Complete System (Technical Safety Officer.)
Main line always goes high or low onto rescuers harness?
Low
When rappelling, start with ___ bars in the break bar rack.
4
Never get closer than ___ feet to the edge without being tied-off.
5 ft.
