Which of the following is not a task to prepare the site around the confined space entrance?

The task of increasing the number of visitors around the area is not appropriate when preparing a site around a confined space entrance. In fact, a crucial aspect of confined space safety is to limit access to only those individuals who are necessary for the job to mitigate risks and ensure a safe working environment.

Having fewer people reduces the potential for accidents, distractions, or complications that could arise from unauthorized individuals entering the area. The other tasks, such as clearing flammable materials, ensuring tools are grounded and explosion-proof, and putting up barriers, are all essential safety measures aimed at preventing accidents and ensuring that the environment around a confined space is as safe as possible for workers.