🔍 Key Concepts

• Class 1 explosives handling requirements in U.S. ports (46 CFR, 49 CFR—hazardous materials) • Fire protection arrangements required before and during loading/unloading dangerous cargo • Difference between general supervision/monitoring vs. specific firefighting readiness requirements

💭 Think About

• Ask which option describes a specific, physical safety measure that can be clearly inspected and verified at the pier. • Compare which choices sound like they give too much discretion to individuals (e.g., the Master, a single person monitoring) versus a prescriptive safety standard written into regulations. • Think about what regulators care most about with explosives: if something goes wrong suddenly, what has to be immediately available and already set up?

✅ Before You Answer

• Check which option refers to equipment that must be laid out, tested, and able to reach the entire loading area before operations proceed. • Verify whether repair work in a space with Class 1 explosives is normally restricted or allowed just on the Master’s say‑so. • Confirm whether regulations call for a specific number of fire hoses at each hatch, or for a hose arrangement that can effectively cover the loading area.