__________ type of scaffolding is used when the proper hard ground is not available for the standards to rest.

In ______ method of underpinning, the existing wall is divided into suitable sections of width about 1.20 metre to 1.50 …

__________ is a very light type of scaffolding and can be used only for the maintenance work such as painting, pointing,…

In _____ method, the piles are driven along both the sides of existing wall and the needle in the form of pile caps are …

In _____ method, the soil under the existing footing is consolidated by using chemicals.

In _______ method, the underpinning is carried out by vibrating the sand.

In ______ type of scaffolding, in place of timber, the Steel tubes can be effectively used for the scaffolding work.

_________ is a Board placed parallel to the Ledgers and supported between the Putlogs.