🔍 Key Concepts

• LFG tanks and lines carry flammable gas and must be protected from damage and contamination • Why corrosion, cracks, and pitting are dangerous in pressure systems • How solid particles and improper cleaning methods can affect valves, pumps, and safety devices

💭 Think About

• Which option(s) deal with detecting physical damage or weakness in the metal of the tank and piping? • Which option(s) relate to keeping the inside of the system clean and free from materials that could block or damage equipment? • If you were writing a maintenance checklist for a flammable gas tank and piping, would you focus on only one of these concerns, or several of them together?

✅ Before You Answer

• Verify which choices deal with inspection for structural integrity (cracks, fractures, pitting). • Verify which choices address cleanliness of the system (water flushing, removal of solids). • Ask yourself: in real-world safe practice, is it enough to do only one of these types of maintenance, or are multiple protections normally combined?