Journeyman Electrician Practice Exam

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Get ready for the Journeyman Electrician Exam. Study with flashcards, multiple-choice questions, and detailed explanations. Prepare effectively and ensure success on your certification!

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If the conductor insulation for Type UF cable is rated at 90°C, what is the suitability for use compared to Type NM cable?

  1. More suitable for damp locations

  2. Less suitable for dry environments

  3. Similar in fire resistance

  4. More suitable for low voltage applications

The correct answer is: More suitable for damp locations

Type UF (Underground Feeder) cable is designed for use in wet and damp locations, making it more suitable than Type NM (Non-Metallic) cable, which is primarily intended for dry indoor environments. The insulation rated at 90°C for Type UF indicates that it can withstand higher temperatures under certain conditions, which is particularly important in damp environments where moisture could compromise electrical insulation. In contrast, Type NM cable is not rated for use in damp locations and should not be used outside or in areas where it might be exposed to moisture. This difference in suitability makes Type UF the more appropriate choice for installations that may encounter wet conditions, providing a safer and more reliable solution in those environments.

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