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Scaffolding > Part 2 > Flashcards

Part 2 Flashcards

1
Q

What is the minimum height of a guardrail?

A

950mm

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2
Q

S.W.L of a Class ‘A’ right angle coupler?

A

6.1kN

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3
Q

S.W.L of a Class ‘A’ swivel coupler?

A

6.1kN

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4
Q

How many lifts can be loaded on a Heavy Duty independent scaffold?

A

1 Lift + 1 Lift at 50 %

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5
Q

What percentage of ties need to be tested?

A

3 + 5% after

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6
Q

What knot is recommended when pulling up scaffold boards?

A

Timber Hitch

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7
Q

What knot is recommended when pulling up scaffold tubes?

A

Rolling Hitch

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8
Q

What knot is recommended when pulling up fitting bags?

A

Bowline

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9
Q

What is the recommended stopping knot?

A

Figure of 8

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10
Q

Can splay scaffolds can be erected in accordance to TG20?

A

No, all splay scaffolds must always be designed

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11
Q

What is the maximum width of a TG20 compliant sheet fan?

A

6 Boards

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12
Q

TG20 compliant sheet allows you to erect a Class ‘A’ fan to a maximum uniformly distributed load of?

A

0.75kN/m2

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13
Q

What is the maximum TG20 compliant fans you can have per elevation?

A

1

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14
Q

Light duty tie has a S.W.L. of what?

A

3.5kN

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15
Q

Standard ‘A’ duty tie has a S.W.L of what?

A

6.1kN

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16
Q

Standard ‘B’ duty tie has a S.W.L of what?

A

9.1kN

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17
Q

Heavy duty tie has a S.W.L of what?

A

12.2kN

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17
Q

TG20 compliant loading bay has a maximum loading of?

A

10.0kN/m2 or 15kN palleterised placed centrally in each bay

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18
Q

What is the maximum overall length of a TG20 compliant loading bay?

A

4m

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19
Q

How many boards wide is a TG20 Compliant loading bay?

A

5 boards

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20
Q

What is the maximum transom spacing on a TG20 compliant loading bay?

A

450mm

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21
Q

When using 610mm deep unit beams what is the maximum number of bays that can be erected in accordance with a sheet?

A

3 Bays

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22
Q

When using 610mm beams in accordance to TG20, when would section bracing be required?

A

Required for 3 bay spans

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23
Q

What is the maximum spacing that section bracing can be installed?

A

2.4m

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24
How often should tie bars/transoms be fixed on the bottom chord of a lattice beam?
2.4m
25
How often should tie bars/transoms be placed on the top chord of a unit beam?
1.2m
26
Where should plan bracing be fixed when the top chord of a beam is under compression?
Fixed within the top third of the beam depth
27
When using 305mm deep ladder beams what is the maximum number of bays that can be erected in accordance with a TG20 compliant sheet?
2
28
When installing prefabricated components in scaffolds such as ladder beams, how should these be installed?
Installed and used as per TG20 compliance sheet and the manufacturers instructions
29
What is the maximum load of a TG20 single lift cantilever?
0.75kN/m2
30
What is the maximum number of boards wide for a TG20 cantilever?
5 boards
31
When erecting a single lift cantilever the joints in the independent ledger should be within?
300mm of standard or sleeve spliced
32
What is the maximum lift height of a TG20 compliant pavement lift?
2.7m
33
What is the minimum width of a TG20 pavement lift scaffold?
1.125m
34
What is the recommended distance between the kerb and the scaffold for a TG20 compliant pavement lift scaffold?
450mm
35
Can truss-out scaffolds can be erected using a compliance sheet?
No, a design is required for all truss-out scaffolds
36
What is the node point on a scaffold?
The intersection where the standard and ledger meet
37
TG20 provides guidance for what types of chimney stack scaffolds?
Ridge, gable and eaves
38
TG20 chimney scaffolds have a maximum safe working load of?
1.5kN/m2
39
What is the maximum standard spacing allowed on a TG20 chimney scaffold?
2m
40
Sole boards on a TG20 chimney scaffold should be placed?
At 90 degrees to the rafters
41
How often should scaffolds be inspected?
Every 7 days, after adverse weather, alteration and before been used for the 1st time
42
Scaffold inspection is a statutory requirement under what regulation?
Working at Height Regulations 2005
43
TG20 independent compliant scaffold can be erected with a maximum of 2 inside boards. What is the uniformly distributed load allowed on the 2 inside boards?
Access Only (0.75kN/m2)
44
What is a fulcrum/pivotal point?
The last point of support
45
What is the maximum 1st lift height on a birdcage scaffold?
2.5m
46
Maximum number of working platforms on a birdcage?
1 (Top Lift)
47
How many boards wide for a very light duty eGuide TG20 independent?
5 boards wide plus 2 inside boards
48
Maximum boards wide for a light duty TG 20 eGuide independent?
5 boards wide plus 2 inside boards
49
Maximum bay size on light duty independent?
2.4m
50
Maximum bay size on heavy duty?
1.8m
51
TG20 compliant sheet fan scaffold offers protection for small objects of a vertical fall distance no greater than?
6m
52
What is the maximum interval plan bracing is installed to TG20 bridge sections?
1.2m
53
What is the minimum dimensions of a sole board?
450mm x 36mm x 220mm
54
How often should plan bracing be fixed in scaffold towers?
Every other lift + under working lift
55
How often should ledger bracing be installed on independent scaffolds?
Every other set of standards + each end
56
What is the recommended tying pattern for an independent scaffold?
16m2 (4m each way)
57
What is the maximum weight you are allowed to pull up on a gin wheel?
50kg
58
What diameter of rope is recommended to use with the gin wheel?
18mm
59
Bracing on an external TG20 compliant tower should be within what if the node point?
100mm
60
BS EN 13374 Temporary Edge Protection introduced how many classes?
3

Scaffolding (3 decks)

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