🔍 Key Concepts

• 46 CFR requirements for towing vessels and tank barges carrying oil or hazardous materials • What types of power sources are commonly used to operate cargo pumps on tank barges • Whether the regulations usually allow more than one acceptable method rather than a single specific one

💭 Think About

• Think about which kinds of power can be safely transmitted from a towing vessel to a barge without creating ignition hazards in cargo areas • Ask yourself: do the rules usually prohibit electricity or air in hazardous locations, or do they just control how those systems are installed? • Consider whether the question is trying to trap you into choosing an answer that is too restrictive ("only" one thing) when regulations often permit multiple options

✅ Before You Answer

• Check whether steam, air, and electricity are all mentioned in regulations as acceptable power sources for cargo pumps under certain conditions • Verify if any choice that says "only" one type of power matches what you know about typical industry practice and regulatory flexibility • Confirm that the safest and most practical combination of power sources for hazardous cargo operations is reflected in the option you select