Craning Terms Flashcards

1
Q

What is the Safety Factor?

A

The amount by which the ultimate strength (or load) is divided to get the rated strength (or safe working load)

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2
Q

What is the difference between stowed and stored boom extensions?

A

Stowed is when jobs or boom extensions are NOT in use and are pinned to the base section of the boom.

Stores is when the job or boom extensions of the crane are stored off the crane.

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3
Q

A/D Director

A

An individual who meets this subpart’s requirements for an A/D director, irrespective of the person’s formal job title or whether the person is non management or management personnel

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4
Q

Assembly/Disassembly

A

The assembly and or disassembly of equipment cover under this standard. The process of increasing the height of the crane is and erection process

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5
Q

Assist Crane

A

A crane used to assist in assembling or disassembling a crane

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6
Q

Attachments

A

Any device that expands the range of tasks that can be done by the equipment

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7
Q

Audible Signal

A

A signal made by a distinct sound or series of sounds

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8
Q

Blocking

A

Wood or other material used to support equipment or a component and distribute loads to the ground

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9
Q

Blocking

A

Wood or other material used to support equipment or a component and distribute loads to the ground

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10
Q

Boom Angle Indicator

A

A device which measure the angle of the book relative to horizontal

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11
Q

Boom Length Indicator

A

Indicates the length of the permanent part of the boom (such as rules markings on the boom) or as in some computerized systems, the length of the boom with extensions/attachments

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12
Q

Boom Stop

A

Includes book stops, telescoping book stops, attachment book stops and backstops. These device restrict the book from moving above a certain maximum angel and toppling over backward

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13
Q

Boom Suspension System

A

A system of pendants, running ropes, sheaves, and other hardware which supports the boom rip and controls the boom angle

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14
Q

Center of Gravity

A

The point in the object around which its weight is evenly distributed

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15
Q

Competent Person

A

One who is capable of identifying existing and predictable hazards in surroundings or working conditions and who has the authorization to take prompt corrective measures to eliminate them

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16
Q

Controlled Load Lowering

A

Lowering a load by means of a mechanical hoist drum device that allows a hoisted load to be lowered with maximum control

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17
Q

Controlling Entity

A

An employee that is a prime contractor, general contractor, construction manager or any other legal entity which has the overall responsibility for the construction of the project

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18
Q

Counterweight

A

A weight used to supplement the weight of the equipment in providing stability for lifting loads by counterbalancing those loads

19
Q

Crossover Points

A

Locations on a wire ripple which is spooled on a drum where one layer of rope climbs up on and crossed over the previous layer

20
Q

Dedicated Spotter

A

His or her sole responsibility is to watch the separation between the power line and the equipment and ensure that the applicable minimum distance is not breached

21
Q

Drum Rotation

A

A device on a crane or hoist which indicated in which direction and at what relative speed a particular hoist drum is turning

22
Q

Electrical Contact

A

Occurs when a person, object, or equipment makes contact or comes in close proximity with an energized conductor or equipment that allows the passage of current

23
Q

Encroachment

A

Where any part of the crane, load line, or load breaches a minimum clearance distance that this sub part required to be maintained from a power line

24
Q

Fall Zone

A

The area in which it is reasonably foreseeable that partially or completely suspended materials could fall in the event of an accident

25
Q

Flange Points

A

Points of contact between rope and drum flange where the rope changes layers

26
Q

Floating Cranes/Derricks

A

Equipment designed for marine use by permanent attachment to a barge, pontoons vessel or other means of flotation

27
Q

Free Fall

A

Only the brake is used to regulate the descent of the load line

28
Q

Jib Stop

A

The same tyler of device as a boom stop but is for a fixed or puffing jib

29
Q

List

A

the angle of inclination about the longitudinal axis of a barge, pontoons, vessel or other mean of floatation

30
Q

Load

A

the object being hoisted

31
Q

Load Moment Indicator

A

system which aids the equipment operator by sensing the overturning moment in the equipment

32
Q

Operational Aids

A

devices that assist the operator in the safe operation of the crane

33
Q

Pendants

A

A fixed length of wire rope with mechanical fitting at both ends

34
Q

Qualified Person

A

A person who possesses a degree or certificate and demonstrated the ability to solve/resolve problems relating to the project

35
Q

Range Control Limit Device

A

A device that can be set by an equipment operator to limit movement of the boom

36
Q

Rated Capacity

A

The maximum working load permitted by the manufacturer

37
Q

Reeving

A

A rope system in which the rope travels around drums and sheaves

38
Q

Repetitive Pickup Points

A

where operating on a short cycle operation, duty cycle

39
Q

Running Wire Rope

A

A wire rope that moves over sheaves and drums

40
Q

Side Loading

A

A load applied at an angle to the vertical plane of the boom

41
Q

Trim

A

Angle of inclination about the transverse axis of barge, pontoons, vessel or other mean of floatation

42
Q

Two Blocking

A

A condition in which a component that is on the hoist line come in contact with the boom tip

43
Q

Upperworks

A

The revolving desk of equipment on which the operation machinery aTe mounted along with the operator’s cab

44
Q

Wire rope

A

A flexible rope constructed by laying steel wires into various patterns of multi wired strands around a core system to produce helically wound rope