2. Scaffolds.

Question 0

2. How fare away shall the scaffold be?

Answer 0

10 feet or more.
3 feet if lines are less than 300 volts.
Or be sure the the power lines are de-energized.

Question 1

1. What wight must supported scaffolds be able to support?

Answer 1

Their own weight and at least 4 times the maximum intended load.

Question 2

3. When can you work on the scaffold that has ice or snow on it?

Answer 2

Only to get ice or snow off the scaffold.

Question 3

4. How can we access the scaffold?

Answer 3

If a scaffold is more than 2 feet above or below a level use a ladder, ramp, or personnel hoist. The access must not be more than 14” from the scaffold.

Question 4

5. Foundation of a standing scaffold?

Answer 4

Put a firm foundation (with base plates attached to feet) for instance,with one piece of wood under each pair of legs (across the shortest distance), extending at least 1 foot past each leg.

Question 5

6. What scaffold shall be tied to support?

Answer 5

A scaffold that is more than 4 times higher than its base is wide.

Question 6

7. How wide must scaffold platforms and walkways be?

Answer 6

18” wide. If a work area is less than 18” wide, guardrails and/or personal fall-arrest must be used.

Question 7

8. How planks shall form platform?

Answer 7

Ten-foot planks must extend at least 6” past the end supports, but not more than 12”. No more than 1” between planks or between planks and uprights.

Question 8

10. What shall check for supported scaffolds?

Answer 8

1. Completely planked platforms.
2. Proper access.
3. Complete guardrails.
4. Proper ties to buildings, where required.

Question 9

11. How must you keep a suspended scaffold from falling to the ground?

Answer 9

It must be attached to the roof , tied to a secure anchorage, or secured with counterweights.

Question 10

12. How strong must supporting outrigger beams for suspended scaffold be?

Answer 10

It must be able to support at least 4 times the intended load.

Question 11

14. How must counterweights be secured?

Answer 11

They must be attached to secure and strong places on a building xo they won’t move. Do not use bags of sand or gravel, masonry blocks, or roofing materials that can flow or move.

Question 12

15. What do not we use on suspended scaffolds?

Answer 12

Gas-powered equipment or hoists. Hoists must have automatic brakes for emergencies.

Question 13

16. How must you prevent swaying on a 1-point or 2-point suspended scaffolds?

Answer 13

It must be tied or secured.

Question 14

18. When don’t you need a guard rail on the working side of platform?

Answer 14

When the platform is less than 14” from the work (18” for plastering and lathing).

Question 15

19. Distance from the face of the building to the open side of an outrigger?

Answer 15

It must be never more than 3”.

Question 16

20. Hight of the top rail of the supported scaffolds?

Answer 16

it must be 38” to 42” above the platform.

Question 17

21. How strong shall be top rail?

Answer 17

It must be strong enough to hold 200lb. on supported scaffolds and 100lb. on single- point or two-point suspension scaffolds.

Question 18

22. How strong must be mid-rail?

Answer 18

Most mid-rails must be able to hold 150 pounds.

Question 19

23. How big must gap between planks and a guardrail be on the scaffold walk ways?

Answer 19

No more than a 9.5”.

Question 20

24. Protection for people below a scaffold?

Answer 20

There must be a 3-1/2” high toe board to prevent things falling off a scaffold.
If things on the scaffold are taller than 3-1/2” (above the scaffold) other systems, like debris nets, can be used to catch falling tools or materials. If things can fall off a scaffold, people must be prevented from walking under or near the scaffold.