Wire Rope test 1

Question 1

What are the wire removal criteria for rotation resistant wire rope?

Answer 1

2 random broken wires in 6 diameters or 4 in 30 diameters
2/6 4/30

Question 2

What is the wear criteria for taking wire rope out of service?

Answer 2

1/3 wear of original dimensions

Question 3

D/d ratios for Boom hoist sheaves Boom tip sheaves, hoist block sheaves

Answer 3

15 to 1 hoist sheaves
18 to 1 boom tip sheaves
16 to 1 hoist block sheaves

Question 4

What are broken wire removal criteria for wire rope termination?

Answer 4

No more than 1 at the end, no more than 2 beyond the end

Question 5

What is the formula for the number of clips required to make a turnback eye

Answer 5

Three times the diameter of the rope +1

Question 6

What is the removal criteria for wire rope slings (broken wires)

Answer 6

Five broken wires in one strand in one lay , 10 broken wires in one lay

Question 7

Five parts of wire rope

Answer 7

Wire, center wire, strand, core, wire rope

Question 8

Describe daily inspection

Answer 8

Before each shift no records needed

Question 9

Describe periodic inspection 

Answer 9

1-12 months recorded by qualified person

Question 10

Non rotation resistant wire rope must extend ____ times the rope diameter beyond the wedge socket, and no less than ____ inches

Answer 10

6 times
6 inches

Question 11

Rotation resistant wire rope must extend_____times the diameter, the tail on wedge socket must be no less than _____ inches

Answer 11

20 times
6 inches

Question 12

Wire rope core is ____% stronger than fiber core

Answer 12

7.5%

Question 13

Name a type of wire rope that has a tendency to untwist

Answer 13

Lang lay

Question 14

What is IWRC

Answer 14

Independent wire rope core

Question 15

How many wires and strands in a 6/19 wire rope

Answer 15

6 strands 19 wires

Question 16

Describe a regular lay

Answer 16

The wires in the stands run in the same direction of the wire rope

Question 17

Describe Lang lay

Answer 17

The wires in the strands run diagonally to the direction of the wire rope

Question 18

What are the removal criteria for rigging hardware? 

Answer 18

5 broken wires in one strand in one lay Or 10 broken wires in one lay

Question 19

6x25 Wire rope is what class? 

Answer 19

6 x 19

Question 20

What is the proper tail length for a wedge socket?

Answer 20

6X the diameter non rotation resistant 20x the diameter rotation resistant but no less than 6 inches 

Question 21

Minimum safety factor for lifting personnel With rotation resistant and non-rotation resistant wire rope

Answer 21

7/1 Rotation resistant
10/1 nonrotation resistant

Question 22

What is the design factor for chain slings?

Answer 22

4/1

Question 23

What is the design factor for wire rope swings, and synthetic slings

Answer 23

4/1

Question 24

What is the minimum amount of wraps that can be on a host drum?

Answer 24

2 wraps

Question 25

When operating a truck crane, what is the least stable allowable quadrant of operation

Answer 25

Over the side

Question 26

According to ANSI B30.23 personal platform lifts should not be made with wind and excess of___mph

Answer 26

20 mph

Question 27

When working near powerlines, when is a single person required

Answer 27

When working with an a booms length

Question 28

What is the minimum design factor required for a right regular lay main boom or auxiliary hoist rope

Answer 28

3.5 to 1 

Question 29

Tipping capacities of crawler cranes are based on what percentage of tipping

Answer 29

75% 

Question 30

How many broken wires in one strand of one lay for running rope, would cause for removal from service

Answer 30

3

Question 31

Above the solid line or in shaded areas is for _________, and below is based on __________

Answer 31

Structural strength Stability

Question 32

Net capacity is equal to?

Answer 32

Gross capacity minus deductions

Question 33

How many randomly broken wires would because to remove a running rope from service

Answer 33

6

Question 34

What are the where criteria for taking a hook out of service?

Answer 34

10% where in the gut of the hook and 5% in the critical areas, or no more than a 1/4” at the mouth

Question 35

What is PLP?

Answer 35

Permissible line pull

Question 36

How are parts of line determined

Answer 36

Gross load, divided by permissible line pull

Question 37

What is cabling?

Answer 37

When the block spins and the cables touch

Question 38

What can be done to reduce cabling?

Answer 38

Adding parts of line, rotation resistant wire rope , tag lines

Question 39

How far out of level may a crane be before the load chart is not valid

Answer 39

1%

Question 40

What is duty cycle?

Answer 40

Repetitive motion like pouring concrete, hanging steel Driveing pile

Question 41

What is the reduction in load chart capacities for duty cycle work?

Answer 41

20%

Question 42

List three types of shackles

Answer 42

Bolt, screw, pin

Question 43

Load chart capacities are divided into two categories. What are they?

Answer 43

Structural And stability 

Question 44

Maximum included angle for a shackle

Answer 44

120°

Question 45

Maximum included angle for a hook

Answer 45

90°

Question 46

How much is a load chart derated during a personal lift

Answer 46

50%

Question 47

Sorting hooks should be used at an angle less than how many degrees

Answer 47

45°