EMT must be supported within what distance from an outlet box, junction box, device box, cabinet, conduit body or other terminations?

• A. 6 feet
• B. 4 feet
• C. 5 feet
• D. 3 feet

Answer: (D)

Keeping EMT close to where it terminates is essential to prevent movement at the connection. EMT must be secured within three feet of every outlet box, junction box, device box, cabinet, conduit body, or other termination. This short distance prevents strain from pulling or vibrations from reaching the box, which helps avoid loosening screws, bending the box, or damaging the internal terminations. It also helps maintain proper alignment of fittings and reduces the chance of damage along the run. After the first support, you continue securing the conduit at regular intervals so the conduit remains rigid and properly supported.