Stop all explosive operations when which of the following persons are present?

• A. Contractors
• B. Officials
• C. Visitors
• D. Maintenance personnel

Answer: (C)

In explosive safety, keeping untrained people out of hazard zones is essential. Visitors aren’t normally trained on specific munitions hazards or the area’s safety rules, so their presence can lead to distractions, accidental entry into restricted spaces, or misunderstandings about what is safe. Stopping all explosive operations when visitors are present gives time to escort them, brief them on hazards, and ensure they are kept away from the work area until it’s safe to resume.

Authorized personnel such as contractors, officials, or maintenance staff may be in the area under proper supervision and with appropriate briefing and controls, so operations can continue under those safeguards.