Master Electrician Practice Exam

For the last two feet of underground conduit transition to a gasoline dispensing unit, what feature is critical?

1. Durability of the conduit

2. Type of conduit used

3. Color of the conduit

4. Installation of conductors

The correct answer is: Type of conduit used

For the last two feet of underground conduit transitioning to a gasoline dispensing unit, the type of conduit used is critical because specific materials are required to ensure safety and compliance with regulations. Gasoline dispensing areas are subject to various environmental hazards, including potential exposure to fuel vapors and liquids. Therefore, the conduit must be made from materials that can withstand corrosive substances and prevent any potential leaks or failures that could lead to dangerous situations. Using the correct type of conduit helps ensure that the installation meets the local codes and standards governing underground electrical installations near flammable substances. This includes the ability to contain any electrical wiring safely, preventing ignition sources near volatile materials. The characteristics of materials such as resistance to UV degradation, mechanical strength, and chemical resistance are vital in these installations, which makes the selection of the conduit type a critical factor in ensuring safety and longevity.