Ropes and Knots

Question 1

What is Life Safety Rope?

Answer 1

used solely for supporting people

Question 2

what is Escape rope?

Answer 2

a single purpose, single use, self rescue rope

Question 3

what is Utility Rope?

Answer 3

is used for everything but supporting the weight of a person. ex: hoisting or lowering tools

Question 4

what are the types of life safety rope?

Answer 4

Personal escape rope 300lb person 10:1, 3000lb

Light Use 300lb person 15:1, 4500lb

General Use(AFD) two300lb (600lb ) persons 15:1 9000Lb

Question 5

how does AFD designate utility rope?

Answer 5

A 3in, Red mark at both ends of the rope

Question 6

what size diameter is personal escape rope?

Answer 6

3/8th in (10mm)

Question 7

what size diameter is life safety rope (light;general)?

Answer 7

1/2 in (12.5mm)

Question 8

what 2 types of rope materials do we use?

Answer 8

Natural fibers

Synthetic fibers

Question 9

what are some drawbacks to using natural fibers?

Answer 9

• they absorb 50% of their weight in water
• they degrade quickly
• subject to mildew
• lose their load-carrying ability over time

Question 10

what are the different types of synthetic fibers?

Answer 10

nylon
polyester
polypropylene (floats on water)
polyethylene

Question 11

according to NFPA 1983 how must synthetic fiber ropes be woven?

Answer 11

Block creel construction

without knots or splices in the yarns, ply yarns, strands, braids, or rope

Question 12

what are the types of rope construction?

Answer 12

Twisted
braided
Kernmantle

Question 13

what is the difference between static and dynamic rope?

Answer 13

Dynamic-is designed to be elastic and stretch when loaded

Static-has a limited range of elasticity

Question 14

what are the safety harness classes and ratings?

Answer 14

Class I Ladder belt
Class II Seat Harness 600lbs
Class III Chest harness

Question 15

Trench rescue is considered how deep?

Answer 15

4 feet?

Question 16

what are the 9 fire service knots?

Answer 16

safety (overhand)
half hitch
clove hitch
figure 8
figure 8 on a bight
figure 8 followthrough
figure 8 bend
bowline
becket or sheet bend

Question 17

what are the 3 Elements of a knot?

Answer 17

Bight
Loop
Round turn

Question 18

what are the working, standing, and running ends of a rope?

Answer 18

Working: part of the rope used for forming the knot.

Running: used for lifting or hoisting?

Standing: the rope between the working end and the running end