419 Flashcards
What is the minimum rope issue for engines
2 utility lines
1/2”x200ft
What is the minimum rope issue for ladders
1- RIT rope
2- life safety
3- utility rope
What is the size of the ropes
1/2”x200ft
What is the size of the RIT rope
6mmx130ft
What type rope does JFRD use
Kernmantle
Where is life safety rope labeled
At the end
What carries the load of the rope
Kern
What is the core of the rope called
Kern
What percent of the tensile strength does the kern carry
75%
What protects the kern
Mantle
What percent of the tensile strength does the mantle carry
25%
What is the tensile strength of 1/2” life safety rope
9000lbs
What is the proper safety factor
15:1
What is the usable capacity of lifeline
600lbs
What is the most common form of destruction
Abrasion
What is used to prevent abrasions
S C
F H
H R
G
What temp does rope become sticky
445°
What temp does rope melt
480-500°
What is rope washed in
Cold water
What is rope washed with
Mild soap
When is rope inspected
Weekly and after each use
What color is the core of kernmantle rope
White
What is inspected during inspection
F
D
L
F
What should be avoided when using a rope
Rapid movements
What is the best protection for ropes against chemical exposure
Storage
Checks
