Define supervisor. Which option best describes a supervisor?

• A. A person who cleans the site.
• B. A person who has charge of a work site or authority over a worker.
• C. A person who purchases equipment.
• D. A person who audits safety reports.

Answer: (C)

A supervisor is someone who has charge of a work site or authority over a worker. In practice, this means directing daily activities, coordinating tasks, and ensuring safety rules and procedures are followed on site. The supervisor monitors work, provides guidance, assigns responsibilities, and has the authority to stop unsafe work or require corrective actions. This set of responsibilities distinguishes a supervisor from roles like someone who cleans the site, someone who purchases equipment, or someone who audits safety reports—the first two are support or procurement tasks, and the last is an evaluative role, not daily on-site leadership.