WorksheetsRigging Week 2 NLC Quiz
Total questions: 14
Worksheet time: 7mins
What term defines the free end of a rope used to form a knot?
Bight
Standing part
Rope
Running End
What is the CBS (Catalog breaking strength)?
The average force in pounds needed to break a rope
Its fine to use the rope up to its CBS
No clue
The average force in kilograms needed to break a rope.
What is the industry accepted ratio for design factor?
6:1
7:1
5:1
10:1
What is the efficiency rating of a clove hitch?
70%
50%
80%
60%
What is the efficiency rating of a square knot?
A) 70%
B) 60%
C) 80%
D) 50%
What is the OHSA requirement for the number of full tucks for a short splice?
2 tucks
At least 8 full tucks
4 on each side of the centerline
100 full tucks to make sure the splice is strong.
What is working load limit (WLL)?
OSHA who?
The spec given by the manufacturer
Average force needed to break the rope
The maximum allowed weight that a rope can be used with normal conditions.
Which splice is not rated for efficiency?
Short Splice
Eye Splice
Back Splice
Improved plow is a term used with?
Wire rope
Extremely heavy loads
Its the only rope you should use
Synthetic rope
What is the efficiency rating of a short splice?
90%
80%
50%
75%
Many companies prohibit which kind of rope?
A) Natural fiber
B) Wire rope
C) Synthetic rope
Why is Manila (type of natural fiber) not good in industry?
A) Subject to rot
B) Its fine
C) Good for climbing
D) Not strong
When installed correctly, what is almost as strong as the rope itself?
Splices
Knots
Bowline on a bight
Square knot
What is the primary advantage of using synthetic ropes over natural fiber ropes?
Lower cost
Higher strength-to-weight ratio
Better resistance to UV light
More environmentally friendly
