California ICC UST Service Technician Practice Exam

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Prepare for the California ICC UST Service Technician Exam with our interactive quiz. Featuring flashcards and multiple-choice questions, each with hints and explanations. Ace your exam with confidence!

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What must be protected against corrosion if it is in direct contact with backfill material?

Steel flex lines
Fiberglass piping
Corrodible underground piping
HDPE piping

The correct answer is: Corrodible underground piping

The correct choice focuses on corrodible underground piping, which is particularly susceptible to corrosion when it comes into direct contact with backfill materials. Backfill can retain moisture and contain corrosive substances that can deteriorate the materials over time. Consequently, it is critical to provide protection for these types of piping systems to maintain their integrity and ensure they function properly without leakages that could lead to environmental hazards. Steel flex lines and HDPE piping, while having certain vulnerabilities, may not require the same level of protection as corrodible underground piping since materials like HDPE are inherently resistant to corrosion. Fiberglass piping also exhibits superior resistance to corrosion, making it less of a concern in that context. The emphasis on protecting corrodible underground piping highlights the specific risks it faces due to environmental exposure and the necessity for preventive measures.