What must be done if scaffolding is assembled on sloped ground?

When scaffolding is assembled on sloped ground, it is essential to ensure stability and safety by leveling and stabilizing it using adjustable screws or leveling jacks. This process helps to create a firm and balanced base for the scaffolding structure, significantly reducing the risk of collapse or movement under load. Sloped ground can create uneven pressure on the scaffolding, and without proper leveling, there is a potential for dangerous shifts, leading to accidents or injuries.

Using adjustable screws or leveling jacks allows workers to make precise adjustments to the height and angle of the scaffolding legs, ensuring that the entire structure is level and secure. This practice is critical in maintaining the integrity of the scaffolding, especially when working at heights, where stability is paramount.

The other options do not adequately address the safety concerns associated with using scaffolding on sloped ground. Simply using scaffolding on such terrain without taking steps to level it would create a hazardous environment. Abandoning the scaffolding or lowering it to the ground does not mitigate the risks involved and may not be feasible depending on the work being performed. Hence, the proper course of action is to ensure that all necessary adjustments are made to achieve a secure and sturdy setup.