Where are you most likely to encounter lead on a construction site?

Where it is used for electrical conduits, tank linings, roofs and cornices.

Explanation:

Lead is a substance which its occurrence is natural in every part of the environment. It has been a useful construction item for many years of its properties such as having a density that is greater than what most common materials have, it is malleable and soft. Lead is also abundant, easy to extract and it can resist oxidation.

Lead is usually used on a construction site for electrical conduits, tank linings, roofs and cornices.

Therefore, lead is most likely to be encountered on a construction site where it used for electrical conduits, tank linings, roofs and cornices.

Despite its great properties and usefulness, the lead use of lead has reduced because it was found to be poisonous in the late-19th century. A contact lead can cause serious health problems such as kidney disease, anaemia and cancer.