CSWIP Cathodic Protection Personnel Practice Questions - CSWIP Cathodic Protection Personnel (BS EN ISO 15257) Exam

Passivity in metals such as stainless steel or titanium is primarily due to the formation of:

A thin, adherent, self-healing oxide surface film A thick porous layer of rust that absorbs electrolyte A continuous layer of hydrogen gas on the surface A high electrical resistance paint coating

Correct Answer:

A thin, adherent, self-healing oxide surface film

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