Fundamentals of Code Calculations 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which of the following is a requirement for Flexible Metal Conduit (FMC) when filling with conductors?

No more than 30% of conduit fill

Must accommodate all cable types

Recommended to use a larger size conduit

Should not exceed fill percentage indicated in code

In electrical installations, it is critical to adhere to fill percentage requirements in conduits, including Flexible Metal Conduit (FMC). The correct choice emphasizes that the fill percentage must not exceed the limits specified in the relevant electrical code, which is designed to ensure safe and effective operation of the conductors within the conduit.

Maintaining appropriate fill percentages is essential for several reasons, including preventing overheating of the conductors, ensuring ease of installation, and allowing for necessary changes and adjustments in the future. Exceeding these fill limits can lead to increased heat generation and potential failure of the electrical system.

While other options touch on aspects of conduit usage, none reflect the specific requirement set by the code regarding percentage of fill, which is fundamentally about safety and compliance.

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