CSLB Class B General Contractor's License Practice Exam

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Prepare for the CSLB Class B General Contractor's License Test with interactive flashcards and multiple choice questions. Each question offers hints and explanations to enhance your understanding and readiness for the exam.

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What is the purpose of cathodic protection in metallic sections of gas piping?

To enhance structural integrity
To prevent thermal expansion
To reduce corrosion
To improve safety during installation

The correct answer is: To reduce corrosion

Cathodic protection is fundamentally aimed at preventing corrosion in metallic structures, such as gas piping. Corrosion is a natural electrochemical process that can lead to the degradation of metal over time, especially in environments where moisture and electrolytes are present. By implementing cathodic protection, a method that involves the use of sacrificial anodes or impressed current systems, the electrochemical reactions causing corrosion are minimized. In practical terms, this means that the metallic sections of gas piping are protected from the harmful effects of rust and degradation, thereby extending their lifespan and ensuring safe operation. This protective measure is crucial in maintaining the integrity of gas piping systems, ultimately helping to prevent leaks and potential hazardous situations.