FREE E2 Commercial Electrical Inspector Plan Review and Inspections Questions and Answers
What is the primary purpose of reviewing electrical blueprints during plan review?
Plan review ensures the proposed electrical work complies with the NEC and other applicable codes before installation begins. This helps prevent violations and safety issues during inspections.
When reviewing plans, you notice that a feeder is undersized for the load it is serving. What is the correct action?
Plans with code violations, such as undersized feeders, must be corrected to ensure safety and code compliance. Approval should only be given after corrections are made.
During an inspection, you find a disconnect switch installed higher than 6 feet 7 inches above the floor. What should you do?
Per NEC 404.8(A), disconnect switches must be readily accessible and installed so the operating handle is not more than 6 feet 7 inches above the floor.
A set of plans shows lighting circuits wired with #14 AWG conductors, protected by a 20-amp circuit breaker. What is the issue?
NEC Table 310.16 specifies that #14 AWG conductors have a maximum ampacity of 15 amps. Using a 20-amp breaker with #14 AWG conductors is a code violation, as it risks overheating and fire.
Which of the following must be verified during the inspection of a completed commercial electrical system?
Labeling and identification are critical for safety and maintenance. NEC Article 110.22 requires that disconnects, panels, and circuits be properly labeled to identify their function.