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rigging > hooks > Flashcards

hooks Flashcards

1
Q

How are quadrants of operation typically defined on load charts?

A By referencing the boom position in relation to its position over the carrier body.
B. By referencing the boom position to the landing area location.
• C. By referending the carrier body’s orientation to the landing area.
• D. By referencing a point between the outriggers in relation to the position of the boom.

A

a

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2
Q

According to the table, what is the MINIMUM dearance a crane in operation can be from a 250 (kV) energized power line?

• A. 10 feet.
• B. 15 feet.
• C. 20 feet.
• D. 25 feet.

A

c

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3
Q

What is the MINIMUM distance that cranes should be kept from energized power lines up to 50kV during hoisting operations?

A. 10 feet
B. 20 feet
C. 40 feet
D. 50 feet

A

A

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4
Q

Which of the following devices is NOT considered a safety device by OSHA 29 CFR 1926.1415?

A load moment indicator
B. level indicator
C. boom stops
D. horn

A

A

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5
Q

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

• A tugger type signals.
B. overhead crane signals.
• C. aggressive signals.
D. signals used for cranes.
Next

A

D

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6
Q

Which of the following tag line materials has the BEST non-conductive properties?

Select one:
• A. Manila.
B. polypropylene.
• C. nylon.
• D. hemp.

A

B

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7
Q

Once a weather warning is given, lightning is spotted, or thunder is heard, the crane operator must

Select one:
• A. consult the operator’s manual
• B. secure crane operations
• C. calculate the distance of the storm
• D. be aware of changing conditions

A

B

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8
Q

According to OSHA, all rigging operations must be planned, supervised and accomplished by persons who are both qualified and

• A. designated
B. competent
• C. experienced
• D. supervisory

A

B

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9
Q

All of the following actions may shorten the service life of a wire rope EXCEPT:

• A. dragging the wire rope through dirt.
• B. using a wobbly sheave.
• C. reeving with a tight D/d ratio.
• D. lubricating the rope.

A

D

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10
Q

While lifting a load you notice a problem with the rigging. Which of the following actions is MOST appropriate?

• A. Stop the lift and report it to the lift supervisor.
B. Stop the lift, lower the load and report it to the lift supervisor.
• C. Continue the lift with caution.
• D. Continue the lift with caution and send for the lift supervisor.

A

B

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11
Q

Upon accidental contact of the crane or its attachments, with an overhead power line, the crane operator should NOT:

• A. stay calm.
• B. remain in the operators cab (whenever possible),
• C. attempt to swing or move the crane free of high voltage contact.
D. climb off the crane.

A

D

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12
Q

When using a personnel platform, the platform and rigging first must be proof tested to

• A. 75% of the platform’s rated load capacity
• B. 100% of the platform’s rated load capacity
• C. 125% of the platform’s rated load capacity
• D. 150% of the platform’s rated load capacity

A

C

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13
Q

Excessive wear and damage to a sheave and to a rope may be caused by rope that is forced into a sheave that is
Select one:
• A. too small
• B. too large
• C. not level
• D. bent

A

A

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14
Q

The wire rope installed on a particular crane has a Working Load Limit (WLL) of 16,500 Ibs. How many parts of line is required for hoisting a gross load of 107,250 Ibs?
Select one:
• A. 8
B. 7
• C. 6
• D. 5

A

B

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15
Q

In reeving a load block, what is the term used for the wire rope that passes from one sheave to the next?
Select one:
• A. parts of line
• B. threading
• C. end termination
• D. D/d ratio

A

A

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16
Q

Reeving a block and tackle into an equal number of parts can help reduce which of these complications?
Select one:
• A. unbalanced load
• B. birdcaging rope
C. load twist
• D. unbalanced D/d ratio

A

C

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17
Q

Boom length on a lattice boom crane is measured from the:
Select one:
• A. center of boom base section to the center of boom tip section.
• B. center of boom tip sheaves to center of boom base section.
• C. center of boom foot pins to center of boom point sheaves.
• D. center of rotation to center of boom base pins.

A

C

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18
Q

If the gross capacity of a crane is 80,000 Ibs., and the total weight of deductions is 6,452 Ibs., the net capacity of the crane in this configuration is
Select one:
• A. 73,248 Ibs.
B. 73,548 Ibs.
C. 73,584 Ibs.
D. 73,648 lbs.

A

B

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19
Q

Forward stability is affected by which of these forces?
Select one:
• A. wind on the rear of the boom
• B. wind on the side of the boom
• C. wind on the front of the boom
• D. wind under the boom

A

A

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20
Q

A boom is moved rapidly to the side and the load does NOT stay centered directly below the boom tip. This is referred to as:
Select one:
• A. side loading.
B. two blocking.
• C. shock load.
• D. tailing cranes.

A

A

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21
Q

Measurements from the center of the crane’s axis of rotation to the center of the load line with the load applied, is the:
Select one:
• A. reach.
• B. boom length.
• C. capacity.
• D. load radius.

A

D

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22
Q

The MAXIMUM boom length that can be raised or lowered without an assist crane is determined by the:
Select one:
A. Operator.
•B. Supervisor.
• C. Manufacturer.
• D. Safety department.

A

C

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23
Q

What will happen to the load radius as the load is applied to the boom?
Select one:
• A. It will increase.
• B. It will decrease.
O C. It will stay the same.
O D. It will move to the left.

A

A

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24
Q

According to the figure shown, a Truck Crane has all outriggers fully extended. During the rotation of the upper works, the crane’s C/G is closest to its tipping axis when the crane is
Select one:
• A. over the side
• B. over the rear
• C. over the front
• D. unchanged

A

C

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25
Q

Using the figure provided, determine the distance from the load attachment point that crane 1 should be attached to equalize the
bar so that neither crane is overloaded. Crane 1 = 100,000 net capacity: Crane 2 = 70,000 net capacity; B = (net capacity of crane 2
/ total net capacity of both cranes) × A
Select one:
• A. 8.94’
• В. 10.29’
O C. 14.71’
• D. 16.24’

A

B

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26
Q

Who can design a personnel platform?
Select one:
A. A qualified person.
B. The general contractor.
C. A site supervisor.
• D. The rigger.

A

A

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27
Q

The two legs forming a choke naturally tighten to approximately what degree angle?
Select one:
O A. 35°.
• В. 45°.
• C. 65°.
• D. 75°.

A

C

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28
Q

For steel erection activities, OSHA classifies any lift as a critical lift when the load chart capacity exceeds
Select one:
• A. 50%
• B. 60%
• С. 65%
D. 75%

A

D

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29
Q

Before finalizing a lift plan, the planner must consult with the site safety officer for
Select one:
• A. the equipment list
• B. a job hazard analysis
• C. an emergency action plan
• D. the gross crane capacity

A

C

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30
Q

The maximum force that can be exerted on the ground’s surface without causing deformation is called
Select one:
O A. gravitational potential
O B. ground exertion pressure
• C. ground bearing pressure
• D. standing strength of soil

A

C

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31
Q

The pre-lift meeting should be conducted by the
Select one:
O A. safety officer
• B. lift director
• C. crane owner
• D. site supervisor

A

B

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32
Q

Plate dogs shall be removed from service if:
Select one:
A. there are cracks in the body.
• B. the paint is worn off.
• C. the lifting eye has surface rust.
• D. the owner’s name is missing.

A

A

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33
Q

A block and tackle is used to:
Select one:
• A. straighten the boom on lattice boom cranes.
B. lift or pull loads.
• C. determine the capacity of the slings.
• D. control the swinging of the load being hoisted.

A

B

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34
Q

Before donning a personal fall arrest system, a worker must
Select one:
• A. visually inspect it
• B. clean it
• C. drop test it
• D. load test it

A

A

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35
Q

A 2-leg bridle hitch is attached to a 2,600 Ibs. load with each leg configured at an angle to the horizontal of 45 degrees. Using the figure shown, what is the stress on each sling leg?
Select one:
• A. 3,676 Ibs.
• B. 1,838 Ibs.
• C. 1,501 Ibs.
• D. 1,300 Ibs.

A

B

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36
Q

What is the purpose of the anti-two-block device?
Select one:
• A. To prevent the hook block from moving to the left or right.
• B. To prevent the hook block from coming in contact with the ground.
• C. To prevent the hook block from being overloaded.
D. To prevent the hook block from coming in contact with the boom point.

A

D

37
Q

Synthetic rope has a high strength to
Select one:
• A. length ratio
• B. fiber ratio
• C. weight ratio
• D. core ratio

A

C

38
Q

Taglines shall NOT be used to control
Select one:
• A. lateral load movement
• B. vertical load movement
• C. load damage
• D. load spinning

A

B

39
Q

Which of the following directly affects the tension applied to each sling?
Select one:
• A. The sling’s angle
• B. The sling’s leg
O C. The sling’s width
•D. The sling’s quality

A

A

40
Q

What will be the stress on each leg of a 2-legged hitch where the load weighs 12,500 Ibs. and each leg is at an angle of 35 degrees?
Select one:
• A. 12,500 Ibs.
• B. 10,887 Ibs.
• C. 7,992 Ibs.
• D. 6,250 Ibs.

A

B

41
Q

What is the safety factor that is applied to rigging hardware used to suspend a personnel platform?
Select one:
• A. 2 to 1.
• B. 5 to 1.
• C. 3.5 to 1.
• D. 7.5 to 1.

A

B

42
Q

Which of the following is a type of knot that does NOT slip or bind under a load, but is easy to untie when there is no load?
Select one:
• A. clove hitch
• B. half hitch
C. bowline hitch
• D. double hitch

A

C

43
Q

bundle of ten #4 (1/2”) rebar rods, each 40 feet long, is to be picked up by a crane. Which of the following is the BEST method for lifting the bundle to limit the deflection of the rebar?
Select one:
O A. Use one rigging sling that is double-wrapped and choked in the center of the bundle.
• B. Use two rigging slings that are double-wrapped and choked from opposite sides, and evenly spaced.
• C. Use three rigging slings that are double-wrapped and choked. Chokers are placed at 8-foot intervals.
• D. Use four rigging slings that are double-wrapped and choked, evenly spaced on a 30-foot spreader beam.

A

D

44
Q

Crane stability is based on the:
Select one:
• A. lever principle.
• B. PCSA rating.
O C. quadrant of operation.
• D. boom angle.

A

A

45
Q

A crane’s center of gravity (C/G) is best defined as the
Select one:
O A. property of a moving crane that is directly proportional to both its mass and speed.
• B. measure of the crane’s steadiness in relation to the tipping axis.
O C. response of the crane to the application of forces, moments, or torques.
• D. point where all of the crane’s mass and weight is concentrated.

A

D

46
Q

Rapid swing causes the load radius to
Select one:
• A stay at the original dimension
• B. increase
• C. decrease
• D. move to the boom tip height

A

B

47
Q

Which lifting device permits lifting from any angle with no capacity derating?
Select one:
• A. Lifting lugs.
• B. Shouldered eyebolts.
• C. Swivel eyebolts.
O D. Shoulderless eyebolts.

A

C

48
Q

When starting to lift a load, which of the following actions should be used while taking the slack out of the load line?
Select one:
• A. The swing brake must be locked to prevent the load from shifting to the downhill side of the crane.
• B. The load brake should be released to prevent side loading of the crane.
• C. The swing brake should be released to allow the boom point to center itself over the load.
• D. The boom brake should be released to allow the boom to stabilize during the lift.

A

C

49
Q

The comparison between the force needed to move an object over the surface of another material, and the pressure between them, is called the
Select one:
O A pendulum effect
• B. combined Center of Gravity (CG)
• C. Coefficient of Friction (CF)
• D. momentum ratio

A

C

50
Q

If at any time communication (voice or hand signals) is disrupted, the operator shall
Select one:
• A. stop all crane movements until communication is restored
• B. continue the lifting operation with caution until communications is restored
• C. immediately lower the load to a safe location until communications have been restored
O D. immediately swing the load to safe location until communications have been restored

A

A

51
Q

Anchors used for attachment of personnel shall be capable of supporting at least
Select one:
O A. 10,000 pounds per individual
• B. 7,500 pounds per individual
• C. 5,000 pounds per individual
O D. 2,500 pounds per individual

A

C

52
Q

The two legs forming a choke naturally tighten to approximately what degree angle?
• A. 35
B. 45
• C. 65
• D.75

A

65

53
Q

A demolition operation where the actual weight of a load may be in doubt is usually designated as a
A. critical lift
B. standard lift
C. planned lift
D. questionable lift

A

A

54
Q

Which of the following standards distinguishes between standard and critical lifts?
A. 29 CFR 1926.1408
B. 29 CFR 1926.751
• C. ASME P30.1
• D. ASME B30.5

A

B 29 CFR 1926.751

55
Q

Should a crane be struck by lighting a thorough inspection must be conducted by
• A. the crane operator
B. the site supervisor
• C. a qualified person
• D. a designated person

A

C

56
Q

When using a crane to lift a personnel platform, the load cannot be more than
• A. 25% of the rated load capacity of the crane
• B. 35% of the rated load capacity of the crane
• C. 50% of the rated load capacity of the crane
• D. 75% of the rated load capacity of the crane

A

C

57
Q

crane transmits its power to the wire rope through the:
• A. drum
• B. boom
• C. block
• D. sheaves

A

A

58
Q

What grade of chain may be used to overhead lifting?
• A. Grade 40
• B. Grade 60
• C. Grade 70
• D. Grade 80

A

D

59
Q

In reeving a load block, what is the term used for the wire rope that passes from one sheave to the next?
• A. parts of line
• B. threading
• C. end termination
• D. D/d ratio

A

A

60
Q

Forward stability is affected by which of these forces?
A. wind on the rear of the boom
B. wind on the side of the boom
• C. wind on the front of the boom
• D. wind under the boom

A

A

61
Q

What grade of steel is MOST commonly used in wire rope slings?
• A. traction
• B. plow
• C. improved plow
• D. extra improved plow

A

D

62
Q

What will happen to the load radius as the load is applied to the boom?
• A. it will increase
• B. it will decrease
• C. it will stay the same
D. it will move to the left

A

A

63
Q

Which of the following is a type of knot that does NOT slip or bind under a load, but is easy to untie when there is no load
a.Clove hitch
b.Half hitch
c.Bowline hitch
d.Double hitch

A

C

64
Q

After any structural repair or modification, a personnel lifting platform shall be tested to what percentage of the platform rating?
a.100%%
b.125%
C.150%
d. 200%

A

C

65
Q

To signal that you want to use the main hoist:
a. Extend your arm and raise your thumb
b. Tap your elbow
C.Tap your hard hat
d. Clasp you hands

A

C

66
Q

What MINIMUM percentage of vertical sling capacity is lost when the sling is configured in a choke hitch?
a. 10 percent
b. 15 percent
c. 20 percent
d. 25 percent

A

D

67
Q

Which of the following deices is NOT considered a safety device by OSHA 20 CFR 1926.1415?
• A. load moment indicator
• B. level indicator
• C. boom stops
D. horn

A

A

68
Q

Which of the following tag line materials has the BEST non-conductive properties?
• A. manila
• B. polypropylene
• C. nylon
• Dhemp

A

B

69
Q

According to OSHA, all rigging operations must be planned, supervised and accomplished by persons who are both qualified and
• A. designated
• B. competent
• C. experienced
• D. supervisory

A

B

70
Q

Where should a rigger stand while installing boom connector pins?
• A. outside the boom
• B. inside the boom
• C. in from of the boom

A

A

71
Q

Nylon and polyester web slings should not be stored or allowed to contact objects at temperatures over
A.215F(102C) or below -40F(-4c)
b.194f(90c) or below -40F(-4C)
c.177F(81 C) or below -40F(-4C)
d.152F(67C) or below - 40F(-4C)

A

B

72
Q

Which is the formula for determining the stress or load on a snatch block?
a. Mass X density = block load
b. Line length X load weight = block load
c.Line pull X block factor = block load
d.Line height X load weight = bloack load

A

C

73
Q
  1. The load chart range diagram shows:
    a. Rear view of the crane including outriggers
    b. Side view of the crane including boom, jibs and boom extensions
    c. Rear view of the crane including crawlers
    d. Side view of the crane including outriggers or crawlers
A

B

74
Q
  1. In multiple crane lifts using an equalizer beam, the weight of the beam should be considered:
    a. Part of the crane boom
    b. Part of the load weight
    c. Part of the crane weight
    d. A non-factor
A

B

75
Q

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?
a. 2%
b. 5%
c. 10%
d. 20%

A

B

76
Q

All of the following are results of unbalanced reeving of the hook block EXCEPT:
a. Wear on the sheaves
b. Torque on the boom
c. Wear on the hook
d. Wear on the wire rope

A

C

77
Q

OSHA regulations require hook replacement if the opening exceeds what percentage of its
original throat opening?
a. 10%
b. 15%
c. 18%
d. 20%

A

B

78
Q

At what percentage of increase in length should a chain sling be removed from service?
a. 2%
b. 3%
c. 4%
d. 5%

A

D

79
Q

According to ASME B30.5, a two crane lift is signaled by:
a. The main crane operator
b. The safety director
c. One designated person
d. The site engineer

A

C

80
Q

What is the PRIMARY concern when working with high boom angles?
a. Backward stability
b. Forward stability
c. Side stability
d. Cross wind stability

A

A

81
Q

On multiple crane lifts, the load on each crane should NOT exceed what percentage of capacity?
a. 90%
b. 84%
c. 80%
d. 75%

A

D

82
Q

What is the MAXIMUM percent of the rated capacity of a crane that can be used to lift
personnel?
a. 40%
b. 50%
c. 60%
d. 80%

A

B

83
Q

What force would be required to move an object up an inclined plane compared to lifting it
vertically?
a. Same
b. Less
c. 1 ½ times more
d. 2 times more

A

C

84
Q

Personnel platforms shall NOT be used to lift:
a. Employees
b. Tools with employees
c. Materials with employees
d. Tools and materials without employees

A

D

85
Q

Prior to use, all new, altered, modified, or repaired rigging hardware shall be inspected by
whom?
a. An equipment manager
b. A signal person
c. A safety coordinator
d. A designated person

A

D

86
Q

The only personnel allowed to have their body parts outside of the suspended personnel
platform during hoisting and lowering operations are:
a. Master riggers
b. Qualified persons
c. Signal persons
d. Craft workers

A

C

87
Q

load chart capacities for on-outrigger lifting do not exceed

A. 65% of tipping load
B. 75% of tipping load
C. 85% of tipping load
D. 95% of tipping load

A

C. 85% of tipping load

88
Q

what does mbs mean?
a.minimum bearing strength
b.maximum breaking strength
c.maximum bearing strength
d.minimum breaking strength

A

D

89
Q

what does mbs mean?
A. maximum breaking strength
B. minimum breaking strength
C. minimum bearing strength
D. maximum bearing strength

A

B

rigging (1 decks)

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