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Flashcards in Scaffold Deck (47)
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1

A suspension scaffold consisting of a platform essentially supported by horizontal and parallel ropes with a vertical pick-up is a?

Catenary scaffold.

2

When using scaffolding boards, the space between the boards cannot be more than:

1 inch

3

Scaffold platforms and walkways shall be at least how wide?

18 inches

4

The maximum distance from the face for outrigger scaffolds shall be:

3" inches

5

Each end of a platform must extend over the centerline of its support at least:

6" inches

6

A scaffolding platform longer than 10 feet shall not extend over its support more than:

18" inches

7

Overlapping scaffolds must overlap each other by:

12" inches

8

Wood platforms may not be painted so as to cover the wood finish, but they can have:

Wood preservatives and slip-resistant finishes applied

9

Scaffold components manufactured by different manufacturers:

Shall not be intermixed

10

Scaffolds must be assembled:

As per manufacturer’s recommendations

11

Supported scaffold poles shall bear on:

Base plates and mud sills

12

Defective ropes on scaffolds shall be:

Replaced

13

When hook-on and attachable ladders are used on a supported scaffold more than 35 feet high, they shall have rest platforms at what maximum vertical intervals?

35' Feet

14

Steps accessing a scaffolding platform shall have a minimum width of:

16" inches

15

The minimum clearance between scaffolds and insulated power lines with less than 300 volts shall be:

3' Feet

16

Employees shall be prohibited from working on scaffolds covered with snow, ice or other slippery material, except?

For removal of such materials

17

Scaffolding platforms shall not deflect more than how much of the span when loaded?

1/60

18

Each employee on a scaffold must be protected from falling when the scaffold is how far above the lower level?

10 Feet

19

Guardrail systems shall be installed:

Along all open sides and ends of platforms

20

What is the MINIMUM height for guardrails on scaffolding manufactured after January 1, 2000?

38" inches

21

With Pole scaffolds when platforms are being moved to the next level:

Leave the existing platform undisturbed until new bearers have been set

22

All ladder jack scaffolds shall be limited to light duty and shall not exceed a height of how many feet above the floor or ground?

20' Feet

23

Wire ropes on catenary scaffolds shall:

Be continuous and not have splices between anchors

24

Scaffold casters and wheels shall be:

Locked with positive wheel and/or wheel and swivel locks

25

Who may supervise the erection and disassembling of scaffolding?

Only employees who are trained and qualified

26

Float or ship scaffolds shall not be used to support more than how many people and a few light tools?

750 LB

27

What is the MAXIMUM permissible span for a 2 x 10 full thickness undressed lumber plank with a working load of 25 psf?

10' Feet

28

Scaffold components must be able to support what without failure?

Its own weight and four times the maximum intended load

29

Each ladder jack scaffold, top plate bracket scaffold, roof bracket and pump jack must be at least how wide?

12 inches

30

What is the maximum horizontal distance from the front edge of a scaffold platform to the face of the work unless guardrail systems are erected along the front edge and/or personal fall arrest systems are used?

14 inches