Rigging 110101e Flashcards
A right lay rope has:
STRANDS twisted to the RIGHT , YARNS twisted to the LEFT.
The strongest synthetic fibre rope is:
Nylon
Safe working load is the:
breaking strength divided by the safety factor.
The type of knot or bend used for tying two ropes of different diameters together is the:
Sheet bend
A knot in a rope:
decreases the rope strength by 50%.
How is a fist grip clip different than a wire rope clip?
The fist grip clip has two identical components.
Why is a thimble used in an eye on a wire rope sling?
The thimble helps prevent premature wear of the slings eye.
How many wire rope clips are recommended to be applied to a 1” diameter wire rope to make an eye in the rope.
4
How is the lifting capacity of a synthetic fibre round sling identified?
by a colour-coded, non-loadbearing cover placed over the sling
When are shoulderless eyebolts used?
for vertical hoists only
The type of chain hoist most suitable for a horizontal pull is the:
Come-along
When two blocks are connected by rope, they become a machine, commonly known as a
Block and Tackle System
Why must a crane be set up as level as possible?
so the lifting capacity of the crane is not affected
What is used to increase a crane’s stability?
outriggers
A crane is capable of the heaviest lifts when its boom is very near to horizontal.
False