419 Flashcards
1
Q
What is the minimum rope issue for engines
A
2 utility lines
1/2”x200ft
2
Q
What is the minimum rope issue for ladders
A
1- RIT rope
2- life safety
3- utility rope
3
Q
What is the size of the ropes
A
1/2”x200ft
4
Q
What is the size of the RIT rope
A
6mmx130ft
5
Q
What type rope does JFRD use
A
Kernmantle
6
Q
Where is life safety rope labeled
A
At the end
7
Q
What carries the load of the rope
A
Kern
8
Q
What is the core of the rope called
A
Kern
9
Q
What percent of the tensile strength does the kern carry
A
75%
10
Q
What protects the kern
A
Mantle
11
Q
What percent of the tensile strength does the mantle carry
A
25%
12
Q
What is the tensile strength of 1/2” life safety rope
A
9000lbs
13
Q
What is the proper safety factor
A
15:1
14
Q
What is the usable capacity of lifeline
A
600lbs
15
Q
What is the most common form of destruction
A
Abrasion
