California ICC UST Service Technician Practice Exam

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Prepare for the California ICC UST Service Technician Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your certification!

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Which material is NOT allowed for UST construction?

Fiberglass
Steel
PVC
FRP

The correct answer is: PVC

The selection of materials for Underground Storage Tank (UST) construction is governed by safety standards and regulations aimed at preventing leaks and ensuring environmental protection. In this context, PVC (Polyvinyl Chloride) is not permitted for UST construction. USTs must be constructed from materials that can withstand the harsh conditions of underground storage and resist degradation from the substances held within. Fiberglass and FRP (Fiberglass Reinforced Plastic) are commonly used materials known for their resistance to corrosion and ability to maintain structural integrity in various environmental conditions. Steel is also used, but additional protective coatings or liners are often necessary to prevent corrosion. PVC, while useful in certain piping applications due to its chemical resistance and lightweight properties, does not possess the strength and durability characteristics required for the construction of a UST. Its susceptibility to impact and the potential for weakening over time make it an unsuitable choice for long-term underground storage applications where leaks can have serious environmental implications. Therefore, the identification of PVC as an unauthorized material for UST construction aligns with safety and regulatory standards, highlighting the importance of selecting appropriate materials that ensure the longevity and safety of the storage tanks.