Scaffolding Related Question and Answer
1. What is Scaffolding?
Scaffolding is a temporary structure. it is used to provide access
to work or it is also used for material support at height.
Scaffolding Related Question and Answer
2. What are the parts of scaffolding?
Base Plate
Sole Plate
Ledgers
Transoms
Bracing
Couplers
Working Platform
Toe Board
Guard Rail
Mid Rail
Top Rail
Ladder
Scaffold
Plank
False Upright
Self Closing Drop Bar
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3. how many types of bracing are there ?
Cross Bracing
Knee Bracing
Plane Bracing
Sway Bracing
4. what are the types of safety net ?
There are two types of safety net:
first safety net is made to arrest the man
And the second safety net is made to arrest the material.
the hole diameter of the safety net provided for the man is 100 mm and the rope used is 8 mm.
And those who use safety net to arrest the material, the diameter of the hole of that safety net is 25 mm and that of the outline rope is 12 mm.
Scaffolding Related Question and Answer
5. Do you know what is the distance from the platform of the gin wheel?
750 mm
6. Do you know that whenever you make scaffolding, at that time there should be a gap between the two planks?
50 mm
7. Do you know what is the size of two boards?
150 mm
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8. Do you know what is the size of the sole plate?
300 X 300 X 6 mm
9. Do you know what is the size of the base plate?
150 X 150 X 6 mm
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10. types of scaffolding ?
independent scaffolding
Birdcage Scaffolding
cantilever scaffolding
Hanging Scaffolding
mobile tower scaffolding
Patented Scaffolding
crystal scaffolding
11. What is coupling?
The most important equipment in scaffolding is complete. Coupling is used to connect one pipe to another or to connect a structure.
12. How many types of couplers are there?
Scaffolding Related Question and Answer
Single coupler
Board Retention Coupler.
Double coupler
Swivel coupler
Girder coupler
Ladder coupler.
Sleeve coupler
joint pin
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13. What are the hazards we face after scaffolding activity and what are the hazards involved in it.
1. falls from elevation
2. scaffold collapse The entire scaffold that is there can collapse.
3. Bad planking means that even if you have not kept the planks equal, it is also a hazard.
4. falling of material
5. falling of tools If you are using any loose material or tools, then those tools are also at risk of falling from top to bottom.
6. loose soil If the soil is loose and if you are building a scaffold on top of it, there is a danger of the scaffold falling, that is, loose soil is a hazard.
7. Excavation near the scaffold means if there is any excavation near where the scaffold has been erected. So there is a danger of falling of that scaffold from that excavation, that is, excavation near the scaffold is a hazard.
8. incompetent scaffolder i.e. who is not his folder who does not have knowledge about that work, other than that if suppose any other person does scaffolding work who does not have his competence, that is also a danger i.e. incompetence scaffolder
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14. What are the precautions you need to take while scaffolding?
first of all to avoid falling you have to install guard rail first. toe board, mid rail , top rail comes in the guardrail. In this way you have to do the guard rail so that you can save any workers from falling down from above.
And second comes personal fall arrest system, anchorage comes in that means the anchoring point of the place where you are working should be correct.
Wherever you are doing scaffolding work, there should be a proper life line so that you can hang your full body harness on it.
Scaffolding Related Question and Answer
15. Which tags are used in scaffolding system and what is the meaning of each tag.
Total three tags are used during scaffolding activity
First is green, second is yellow and third is red
The meaning of green tag is That scaffold is safe and they can use it for work.
The meaning of the yellow yellow tag is that some modification has to be done in that scaffold and in yellow tag, only scaffold folder persons who are competent persons can work.
Red tag means before doing any scaffold erection, we have to put red tag so that whoever is from authorized person or competent person can work on it. Until the scaffold is complete, no other person can work on its full.
Scaffolding Related Question and Answer
16. It is very important for you to check how the scaffolding is inspected and what are the points in it.
So, first of all, you have to check that the condition of the ground level of the scaffold where it is built. You have to check and ensure that its ground level should be in solid form and should be in properly level conditions.
Then second you have to check its sole plate i.e. during inspection you have to see what is its sole plate size? There is a standard size of sole plate which is 300 X 300 X 6 mm.
That is, its length which is 300 mm. The width which is 300 mm and the height which is 6 mm. So whatever it is, it is the standard size of the sole plate, in that way you have to check it.
Then you have to see that you have to check its base plate. In that too, you have to check that the base plate should not be directly on the ground. It should be above the sole plate and the size of that base plate should be 150 by 150 by 6 mm.
That is, its length should be 150 mm. and The width also 150 mm.
Then you have to see whether the lasers installed there are properly clamped or not, that too you have to see. Then you have to see that whatever transoms are used there, those transoms are in good conditions and they are properly tightened should be 150 and its height should be 6mm. Then you have to check whether its standard is in good condition or not and you have to check whether its standard is level or not.
Then you have to see that all the couplers used there are not loose anywhere, that too you have to see and ensure that all those couplers are tight
Then you have to see that whatever planks are installed there, for the working platform i.e. which we also call the board, it is in good condition and the working platform is totally covered and the plans are there should not be much gap between them.
So that none of those tools can fall down.
Then after that you have to inspect the toe board i.e. is toe board available in that working platform? You have to ensure that and the height of the two boards should be six inches. That is, its height should be 150 mm.
Then after that you have to see that whatever guardrails have been installed there, the standard of its height has been maintained. Guard rail is also called top rail and the height of top rail ranges from 950 mm to 1200 mm. So, the height that is there is maintained there or not. that you have to check
Then you have to inspect the midrail, that is, whether the height of the midrail is maintained from 450 to 600 mm or not, you also have to check it. Then after that you have to inspect the ladder and you have to check whether the ladder is maintained in 75 degrees or not. Also, you have to see whether its ratio is 4:1 or not.
Then after that you also have to keep in mind that the height of the ladder should be at least one meter above the landing platform and it should have at least three steps so that whenever you use it, when someone from above Any number of persons come down or if any person from below goes up, then they should easily use that ladder and they can safely become rich on that platform. So all these points, which we have seen here, if they are installed properly then only green tag will be applied there and this green tag,
This is given by the scaffolding inspector only and he is the authorized person who will check the scaffolding and then accordingly put up the tag there i.e. it is called status of tag. One more thing you have to keep in mind here that no employee other than Scaffolding Inspector is authorized to put tags in his scaffolding.
Scaffolding Related Question and Answer
17. In which condition you cannot do scaffolding erection,
If the weather condition is not good, such as strong wind or rain, scaffolding should not be erected in that condition.
If the ground is not stable, scaffolding should not be erected even in that condition.
Scaffolding should not be erected even if there is no safe clearance from the live electrical line.
Scaffolding should not be erected even in that condition if the permit is not available.
If certified scaffold or supervisor is not available there, scaffolding should not be erected even in that condition
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18. What should be the minimum overlapping of adjacent plank in scaffolding platform?
Overlapping should not be less than 12 inches.
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19. What is guard rail system?
So for that you have to answer that head guard rail system means it is a barrier which consists of top rail, mid rail toe guard and vertical upright which prevents. Falling of man or falling of material on scaffolding platform
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20. What is toe board?
Toe board means there is such a barrier which secures the sides of the platform and , due to material fall, tools fall or any other object. Prevents from falling.
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21. What should be the minimum height of toe board?
Should be 4 inches.
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22. What should be the height of the top rail from the platform?
The height of the top rail should be from 38 to 45 inches from the platform.
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23. What are the requirements of the ladder provided for access on top of the scaffold?
If the height of scaffolding platform is above two feet or less, but there is no point of access then in that condition access has to be provided and when we use ladder for access, we have to see that The height of the bottom rung of that ladder should not exceed 24 inches.
You have to place the ladder in the correct angle, such as 75 degree angle, you have to tie the ladder from both sides but do not tie it with its rung. Then after that you have to make sure that the ladder which is there should extend in one meter safe distance.
From the landing stage or from the landing platform, then after that you have to see that there should not be any damage in the ladder or that ladder should not be painted and then whatever access the ladder has, it should be tagged.
Scaffolding Related Question and Answer
24. In which circumstances fall protection system is used
If the height is more than 1.8 meters and there is a danger of falling, then fall protection should be used as an arrester.
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25. What should be the minimum width of walkway?
The minimum width for the walkway should be 18 inches.
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26. Which material can be placed on the scaffolding platform, that is, can be kept on top of it?
Whatever material is used in construction activities, we can keep it on the scaffolding platform. But it depends on the load bearing capacity of scaffolding means when we assure that the load bearing capacity of that scaffolding is safe for that material, only then we can place that material on top of that scaffolding platform.
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27. What color should you paint the ladder?
Ladder should never be painted with any color. That is not allowed.
Scaffolding Related Question and Answer
28. If you have to work on a moving scaffold or a mobile scaffold, what are its requirements?
The mobile scaffold which is there should be properly plumb, it should be in level and it should be in square. the surface should be in firm and level so that we can ensure its stability. We can manually push or pull the mobile scaffolding through its base. We can move the mobile scaffold by manually pushing it,
But during that time there should not be any persons above scaffolding. No equipment or material should be on top of the scaffolding platform while you are pushing or shifting it and then again whenever you use a mobile scaffold. You always have to keep the caster wheel in lock condition.
Then after that the height of the mobile scaffolding should not be more than four times the base of the mobile scaffold as compared to it and then after that the mobile scaffold should have a complete guard rail system.
Scaffolding Related Question and Answer
29. When should we do the inspection of scaffolding?
1. When the scaffolding is completely erected, then it has to be inspected and then should tagged it.
2. inspection before every work period or whenever it is altered. ,
3. it has to be inspected whenever there is heavy rain or heavy wind comes on that scaffolding then it is very important to inspect it.
4. scaffolding is to be inspected every week.
Scaffolding Related Question and Answer
30. What is Lifeline?
Lifeline is a component that has a flexible line, it is connected to both ends, it is anchored in one end where it hangs vertically and it is connected to another anchoring point and then to that line.
The horizontally is stretched and it is done so that the other components, such as the components of the personal fall arrester system, can be anchored in it.
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