Electrician's Licensing Practice Exam

According to NEC, where must a grounded conductor run in relation to flexible conduit?

1. Outside the conduit

2. Inside the conduit

3. Alongside the conduit

4. Above the conduit

The correct answer is: Inside the conduit

The correct choice is to have the grounded conductor run inside the flexible conduit. This requirement is based on the National Electrical Code (NEC), which aims to ensure safety and prevent electrical shock or short-circuit conditions. When the grounded conductor is housed within the conduit, it is better protected from physical damage and is less likely to come into contact with other conductive materials or hazardous surfaces. Additionally, routing the grounded conductor within the conduit helps maintain the conductor's integrity and ensures uniform grounding throughout the system. This also aids in reducing electromagnetic interference, which can be crucial in sensitive electronic applications. Other arrangements, such as placing the grounded conductor outside or alongside the conduit, may expose it to various dangers that could compromise the safety and effectiveness of the electrical installation. This includes risks such as physical damage, increased exposure to environmental factors, and inadequate grounding methods, all of which could jeopardize the performance of the electrical system.