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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
Q

How often should tie bars/transoms be fixed on the bottom chord of a lattice beam?

25
Q

How often should tie bars/transoms be placed on the top chord of a unit beam?

26
Q

Where should plan bracing be fixed when the top chord of a beam is under compression?

A

Fixed within the top third of the beam depth

27
Q

When using 305mm deep ladder beams what is the maximum number of bays that can be erected in accordance with a TG20 compliant sheet?

28
Q

When installing prefabricated components in scaffolds such as ladder beams, how should these be installed?

A

Installed and used as per TG20 compliance sheet and the manufacturers instructions

29
Q

What is the maximum load of a TG20 single lift cantilever?

30
Q

What is the maximum number of boards wide for a TG20 cantilever?

31
Q

When erecting a single lift cantilever the joints in the independent ledger should be within?

A

300mm of standard or sleeve spliced

32
Q

What is the maximum lift height of a TG20 compliant pavement lift?

33
Q

What is the minimum width of a TG20 pavement lift scaffold?

34
Q

What is the recommended distance between the kerb and the scaffold for a TG20 compliant pavement lift scaffold?

35
Q

Can truss-out scaffolds can be erected using a compliance sheet?

A

No, a design is required for all truss-out scaffolds

36
Q

What is the node point on a scaffold?

A

The intersection where the standard and ledger meet

37
Q

TG20 provides guidance for what types of chimney stack scaffolds?

A

Ridge, gable and eaves

38
Q

TG20 chimney scaffolds have a maximum safe working load of?

39
Q

What is the maximum standard spacing allowed on a TG20 chimney scaffold?

40
Q

Sole boards on a TG20 chimney scaffold should be placed?

A

At 90 degrees to the rafters

41
Q

How often should scaffolds be inspected?

A

Every 7 days, after adverse weather, alteration and before been used for the 1st time

42
Q

Scaffold inspection is a statutory requirement under what regulation?

A

Working at Height Regulations 2005

43
Q

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?

A

Access Only (0.75kN/m2)

44
Q

What is a fulcrum/pivotal point?

A

The last point of support

45
Q

What is the maximum 1st lift height on a birdcage scaffold?

46
Q

Maximum number of working platforms on a birdcage?

A

1 (Top Lift)

47
Q

How many boards wide for a very light duty eGuide TG20 independent?

A

5 boards wide plus 2 inside boards

48
Q

Maximum boards wide for a light duty TG 20 eGuide independent?

A

5 boards wide plus 2 inside boards

49
Q

Maximum bay size on light duty independent?

50
Q

Maximum bay size on heavy duty?

51
Q

TG20 compliant sheet fan scaffold offers protection for small objects of a vertical fall distance no greater than?

52
Q

What is the maximum interval plan bracing is installed to TG20 bridge sections?

53
Q

What is the minimum dimensions of a sole board?

A

450mm x 36mm x 220mm

54
Q

How often should plan bracing be fixed in scaffold towers?

A

Every other lift + under working lift

55
Q

How often should ledger bracing be installed on independent scaffolds?

A

Every other set of standards + each end

56
Q

What is the recommended tying pattern for an independent scaffold?

A

16m2 (4m each way)

57
Q

What is the maximum weight you are allowed to pull up on a gin wheel?

58
Q

What diameter of rope is recommended to use with the gin wheel?

59
Q

Bracing on an external TG20 compliant tower should be within what if the node point?

60
Q

BS EN 13374 Temporary Edge Protection introduced how many classes?

Scaffolding (3 decks)

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