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Question
Where the needle scaffolding will be most suitable to use?
A.
When construction work in the basement of the building is to be carried out
B.
To do painting and repair work inside the rooms
C.
When ground is strong to support standards
D.
When it is required to keep the ground near to the wall, free for traffic
Answer ( Option D)

When it is required to keep the ground near to the wall, free for traffic

Solution

Following are types of scaffolding in construction;
1. Single scaffolding
2. Double scaffolding
3. Cantilever scaffolding (Needle scaffolding)
4. Suspended scaffolding
5. Trestle scaffolding
6. Steel scaffolding
7. Patented scaffolding
 
Cantilever Scaffolding (Needle Scaffolding)
This a type of scaffolding in which the standards are supported on series of needles and these needles are taken out through holes in the wall. This is called single frame type scaffolding. In other type needles are strutted inside the floors through the openings and this is called independent or double frame type scaffolding. Care should be taken while construction of cantilever scaffolding.
Generally cantilever scaffoldings are used under conditions such as
• When the ground does not having the capacity to support standards.
• When it is required to keep the ground near to the wall, free for traffic
• When upper part of the wall is under construction

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