Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Plumbing Level 1 > Rigging > Flashcards

Rigging Flashcards

1
Q

What does 1:1 mechanical advantage mean?

A

1:1 = No advantage

The amount of force needed to move load = the load weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What kind of Mechanical Advantage is a Compound (movable) pully?

A

2:1 => The length of rope = twice the distance needed to move the load.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What / where is the centre of gravity?

A

Is the point at which the object will balance

regardless of object being upright, on its side, top bottom or end

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is WLL?

What does WLL describe?

A

Working Load Limit

The maximum load allowed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the safety factor for material and for critical or personal lifts?

A

5: 1 for material
10: 1 for critical or personnel lifts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe what a Turnbuckle does.

A

It is used to adjust the lengths of slings so loads can be lifted into a level position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is an important feat that a turnbuckle has?

A

They are metal sleeves with left internal threads at one end and right internal threads at another.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What importance does a Lock wire have?

A

They are used to lock the ends of turnbuckles into place.

(In case the ends start to move dt wind or load mvmt)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

True or False: Shoulderless eye bolts are okay to use in overhead lifting

A

False: They should not be used in overhead lifting as the force applied from the side at any angle will break the stem of the bolt.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Load ratings on a shackle must be what?

A

Must be stamped or embossed on the body of the shackle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A pin of a shackle snaps, can it be replaced with any pin?

A

No you must always use the same type of pin with the same rating.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where does a sling hang off a shackle?

A

The sling is placed in the bow of the shackle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does the term, Never Saddle a Dead Horse, mean?

A

The U portion of a shackle must be installed on the dead end of the line.

(saddle does not go on the dead end)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When using cable clips to create and loop, what are the diameters?

A

Space bn cable clips = 6 or 7 rope diameters

Distance from rope end to first cable clip = 6 or 7 rope diameters

How many clips needed? rope diameter x 3 -→ round up to the next number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When should new wire rope cable clips be tightened?

A

After the first hour of service in a new connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is this?

A

Sorting hook -→ used to sort piles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are hooks usually made of?

A

Alloy steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are softeners?

A

Any kind of padding that can be placed bn the sling and any sharp corners on the load.

-Protects the load / sling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What must synthetic web slings include?

A

A tag indicating the WLL

All slings have ID tags

Metal slings have dog tag type ID

20
Q

What does a Double - wrap basket hitch look like?

A
21
Q

What is the best choice for loose bundles / choking out bundles and grabbing it?

A

Double - wrap choker hitches

22
Q

What are snatch blocks used for?

A

Change direction on lift

23
Q

What must be clearly marked on a Hoist?

A

The lifting capacity

Lifting capacity must never be exceeded

24
Q

What type of rope can a lifting medium use?

(Lifting mediums are used with come-alongs)

A

Chain or Wire rope

25
Q

What is a Tirfor jack?

A

They are hand - operated lifting or pulling devices

UNLIMITED AMOUNT OF ROPE TRAVEL

26
Q

True or False: you can operate a forklift w/o training

A

False: No person shall operate a forklift w/o taining

27
Q

The load - lifting capacity of a forklift depends on what?

A

Spacing of the forks

height

tilt of the mast

floor or ground surface

28
Q

What is the min safety factor for rigging used to support workers?

A

10:1

29
Q

What is the sheet bend used for?

A

Attaching two ropes of UNEQUAL diameter together

30
Q

Where should wire rope and fibre slings be stored?

A

In a dry location off the ground

31
Q

Why and with what should we lubricate wire rope?

A

To prevent corrosion and use light oil

32
Q

How often should rope be inspected?

A

regularly

33
Q

How often should hooks be regularly?

A

Frequently

34
Q

What do we look for when inspecting eye bolts and ring bolts?

A

Inspected regularly for wear, cracks, and abrasions

35
Q

How often should shackles be checked?

A

Regularly

36
Q

True or False: You should always pull a load

A

False: Push a load always to prevent injury or entrapment

37
Q

What do you have to be familiar with in order to understand whats going on around you?

A

Standards hand signals and hoisting operations

38
Q

What is a Boom?

A

Primary arm of a crane

Acts as a lever

39
Q

What is Boom radius?

A

Aka operating radius. Is the horizontal distance from centre of rotation to the hook

40
Q

What is the Tagline?

A

Guy-wires used to control crane loads from unwanted rotation or swinging

This allows ground workers to control the load from a safe distance

41
Q

What is the Whipline (auxillary hoist)?

A

a second hoist line from the main, usually lighter and faster

42
Q

Where do you find Crane identification and user information?

A

Attached to the crane

43
Q

What capacity does a boom have?

A

110 tons.

This number reduces as the boom extends or moves closer to horizontal

44
Q

What are 4 boom styles? (TLFR)

A

Telescoping

Lattice

Fixed

Rough terrian

45
Q

What requires mats that are at least 3 times larger than the floats, rigid and rated properly?

A

Outriggers

46
Q

What shouldn’t you do with the arm of an outrigger?

A

Never block the arm.

Only block the float

47
Q

What is a Counterweight

A

Supplementary ballast added to the weight of a crane to provide additional stability in a lift.

Plumbing Level 1 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions