What are placards?

• A. Safety manuals
• B. Hazardous signs and symbols
• C. Emergency contact cards
• D. Operational checklists

Answer: (B)

Placards are the hazard signs and symbols posted on containers, vehicles, or storage areas to communicate what kind of danger is present. They use standardized pictographs and colors so anyone handling or responding to an incident can quickly assess the risk and take appropriate precautions. This makes placards a practical tool for safety and emergency response, especially around explosive or reactive materials like ammunition components.

They’re not safety manuals, which are written instructions you follow, nor emergency contact cards, which provide phone numbers, nor operational checklists, which guide steps to perform a task. Placards convey immediate, at-a-glance information about the hazard itself, helping to identify the type of danger and the precautions needed.