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Question 1

What is meant by the term “two blocking”?

Answer 1

The load block contacts the boom point sheaves.

Question 2

Lifting 20,000 lbs with a 2-leg bridle sling at a 30 horizontal sling angle, what is the force applied to each leg?

Answer 2

20,000 pounds

Question 3

In multiple crane lifts using an equalizer beam, the weight of the beam should be considered:

Answer 3

Part of the load weight

Question 4

What is required of there is a deviation from the lift plan?

Answer 4

A new lift plan

Question 5

On level ground using skids and rollers, what percent of the weight of the load should yield the required line pull as a general rule of thumb?

Answer 5

5%

Question 6

All of the following are results of unbalanced reeving of the hook block EXCEPT:

Answer 6

Wear on the hook

Question 7

Before a spreader bar or beams can be used the MUST have been:

Answer 7

Tested and Approved

Question 8

When materials are being hoisted to an upper level, a tag line is used to:

Answer 8

Help control the load

Question 9

Two cranes are lifting 100 tons. If crane A has 40% of the load, how much weight will crane B have on its hook?

Answer 9

60,000 lbs

Question 10

To CONFIRM the rated capacity of a specific sling, consult the manufacturer’s:

Answer 10

Sling Tag

Question 11

OSHA regulations require hook replacement if the opening exceeds what percentage of its original throat opening:

Answer 11

15%

Question 12

At what percentage of increase in length should a chain sling be removed from service?

Answer 12

5%

Question 13

The methodical process that attempts to identify hazards and devise plans to overcome or eliminate hazards which which may interfere whit crane of rigging is called:

Answer 13

Lift Plan

Question 14

What provides additional control of a load being lifted?

Answer 14

Tag Lines

Question 15

When traveling on a rubber tire mobile crane, how should the boom be positioned?

Answer 15

In line with the direction of travel

Question 16

Before performing pick and carry operations with any mobile crane, it is important to:

Answer 16

Refer to the manufacturers capacity chart

Question 17

According to ASME B30.5, a two crane lift is signaled by:

Answer 17

One designated person

Question 18

What is the PRIMARY concern when working with high boom angles?

Answer 18

Backward stability

Question 19

On multiple crane lifts, the load on each crane should NOT exceed what percentage of capacity?

Answer 19

75%

Question 20

What are lifting lugs?

Answer 20

Eyelets welded to a steel plate for lifting

Question 21

The formula for determining stress on a snatch block performing a vertical lift is: line pull x block factor = block load. What must be done to calculate formula?

Answer 21

Multiply the load weight by the coefficient of frictionto determine line pull, and the use the standard formula

Question 22

if both fists are placed in front of your body with your thumbs pointed outward, the crane operator should:

Answer 22

Extend the boom sections

Question 23

What is the MAXIMUM percent of the rated capacity of a crane that can be used to lift personnel?

Answer 23

50%

Question 24

When does lightening present the greatest hazard to the crane and rigging personnel?

Answer 24

When thunder and lightning are apparent

Question 25

What force would be required to move an object up an inclined plane compared to lifting it vertically?

Answer 25

1 1/2 times more

Question 26

Personnel platforms shall NOT be used to lift:

Answer 26

Tools and materials without employees

Question 27

All of the following are reasons for stopping personnel lifting operations EXCEPT:

Answer 27

There are no tag lines

Question 28

When working in close quarters, the main concern is:

Answer 28

Safety

Question 29

The point of any object's weight can be assumed to be concentrated at:

Answer 29

Center of gravity

Question 30

In a spur-gear chain hoist with a two chain system, the endless chain is used to:

Answer 30

Raise and lower the load

Question 31

In an emergency situation, what is the rigger's FIRST priority?

Answer 31

Te prevent injury of loss of life

Question 32

All of the following conditions exert dynamic loading on a crane EXCEPT:

Answer 32

Static boom angle

Question 33

Proper lead sheave placement as it relates to the hoisting drum location is:

Answer 33

Proper spooling of wire rope

Question 34

The MOST important information to consider when planning a lift is:

Answer 34

Weight of the load

Question 35

Prior to use, all new, altered, modified, or repaired rigging hardware shall be inspected by whom?

Answer 35

A designated person

Question 36

An unsafe condition that riggers should be aware of when dealing with a multi part load block is:

Answer 36

Twisting multi part lines

Question 37

Most cranes in duty cycle operation require a:

Answer 37

Load test

Question 38

The only personnel allowed to have their body parts outside of the suspended personnel platform during hoisting and lowering operations are:

Answer 38

Signal persons

Question 39

What is the most important reason rigging hardware should NOT be modified?

Answer 39

It could negatively affect its capacity

Question 40

In the term (D / d ratio) the d is an abbreviation for:

Answer 40

Diameter

Question 41

A document that outlines weights, crane configuration and rigging requirements for a lift is called a:

Answer 41

Lift plan

Question 42

When using a 1-inch wire rope sling in a vertical basket hitch lifting a 24-foot long, 36-inch diameter pipe,

Answer 42

36 to 1

Question 43

What is LMI?

Answer 43

Load movement indicator

Question 44

Location of electrical hazards on the job site should be documented on a:

Answer 44

Lift plan

Question 45

When forming a lift plan, a PRIMARY concern for the person doing the rigging is

Answer 45

Capacity of rigging

Question 46

When using a wedge socket, the dead end of the rope is secured in the socket by the:

Answer 46

Wedge

Question 47

When erecting or stowing a swing-away lattice extension, what should be used to control the movement of the extension?

Answer 47

Tag line

Question 48

Planning for rigging is required:

Answer 48

Only when lifting any load

Question 49

A lift plan MUST be completed by a:

Answer 49

Supervisor

Question 50

Anchorage points for fall arrest for a single person MUST be able to hold:

Answer 50

500 lbs

Question 51

Which of the following items are used for heavy rigging?

Answer 51

Slings, shackles, and spreader beam

Question 52

If the jacket of a synthetic round sling is damaged, that sling should be:

Answer 52

Removed from service immediately

Question 53

Which of the following is NOT a factor when making submerged lifts?

Answer 53

Water temperature

Question 54

When a tugger is mounted where the operator can NOT see the load, the signal person MUST use:

Answer 54

Signals used for cranes

Question 55

Who can designed a personnel platform?

Answer 55

A qualified personnel

Question 56

A one-inch, 3-leg bridle wire rope sling, rigged at a 45degree angle, is good for 18 tons. The addition of a fourth leg will increase your capacity by:

Answer 56

0 lbs

Question 57

After any structural repair or modification, a personnel lifting platform shall be tested to what percentage of the platform rating?

Answer 57

150%

Question 58

All of the following statements about crane contact with power lines are TRUE EXCEPT:

Answer 58

The operator should leave the cab as quickly as possible

Question 59

Loads introduced into the machine or its components due to accelerating or decelerating force is called:

Answer 59

Dynamic loading

Question 60

Using the sling chart provided, what is the rated capacity of a 1/2 inch sling in a basket hitch with sling legs 90 degrees?

Answer 60

6,200 lbs

Question 61

When lifting 100,000 pounds, the main load block must be reeved with how many parts of line?

Answer 61

4

Question 62

What standard hand signal is being communicated in the illustration?

Answer 62

Travel (one track)

Question 63

What standard hand signal is being communicated in the illustration?

Answer 63

Use whip line