Lifting Procedures And Wire Rope

Question 0

What’s the safety factor ratio strength a wire must be

Answer 0

5:1

Question 1

Right lay left lay in wire rope refers too

Answer 1

The direction the strands rotate together left hand turning in right hand turning in

Question 2

Safe working load formula is?

Answer 2

Breaking strength / safety factor = SWL

Question 3

Safe working load can be approximated by the formula

Answer 3

SWL = D2 x 8

Question 4

Avoid bending or confining wire rope a kink is?

Answer 4

A kink is permanent rope gets destroyed

Question 5

A 3/8 chain has a working load limit of 7100 pounds 5/8 chain is 18100 pounds what would a 7/8 chain working load be?

Answer 5

34200 pounds

Question 6

The Safety factor ratio for chain is ?

Answer 6

4:1

Question 7

A bridle hitch is

Answer 7

When three or four single hitches are connected for load distribution

Question 8

The optimum sling angle is?

Answer 8

60 degrees the less degrees the higher the tension

Question 9

Shock loading is?

Answer 9

A sudden jolt of up or down movement and is to avoided at all cost

Question 10

There must be a minimum of how many wraps of wire rope on drum before load is applied?

Answer 10

5 Wraps are needed before load can be used