Electrician's Licensing Practice Exam 2026 - Free Electrician License Practice Questions and Study Guide

The correct reference for finding trade sizes of conduit and raceway sizes is indeed found in Chapter 9, Table 4 of the National Electrical Code (NEC). This table specifically provides information about the trade sizes of conduits and raceways, such as their dimensions and the corresponding conduit size designations for standard types of conduit.

Utilizing Table 4 allows electricians to determine the appropriate conduit size based on the needs of the installation, ensuring compliance with NEC requirements for electrical systems. This is important for matters like proper wire fitment, ensuring adequate bending radii, and overall safety in electrical installations.

In contrast, other tables within Chapter 9 focus on different aspects; for example, Table 1 deals with allowable fill for conductors in conduits, Table 2 covers conduit bending dimensions, and Table 3 relates to conductor properties. Understanding these differences helps professionals locate the specific information they need when working with conduit and raceway systems.