The NC electrical exam uses the 2013 NFPA 72 and the 2020 NEC. Limited, Intermediate, Unlimited, SP-SFD and SP-FA/LV candidates must bring the 2013 NFPA 72 and practice finding answers in it before test day. Start with the difference between a device that detects a fire, an appliance that warns people, and the wiring connecting the system.
What does NFPA 72 cover?
NFPA 72 is the National Fire Alarm and Signaling Code. It covers how fire-alarm and signaling systems perform, including initiating devices, notification, circuits, inspection and testing.
The NEC answers a different set of questions about electrical installation. For example, 2020 NEC Article 760 addresses fire-alarm wiring. Use NFPA 72 for detector placement and notification-appliance requirements. Identify the device and the system before looking up the rule.
Practice NFPA 72 and the rest of your NC exam
Learn to find answers in the code book, work through calculations and practice for test day.
All three options include JCR’s study materials.
Need the book? JCR carries the 2013 NFPA 72 softbound edition. Check the complete book list for your exam before ordering.
Learn these chapter locations
Start with these chapters in the 2013 edition. Practice choosing the chapter before looking for the exact section. You can also review this official NFPA 72 training outline.
| Chapter | Topics |
|---|---|
| 10 | Fundamentals, including basic system requirements |
| 12 | Circuits and pathways |
| 14 | Inspection, testing and maintenance |
| 17 | Initiating devices, including detectors |
| 18 | Notification appliances |
| 29 | Single- and multiple-station alarms and household fire-alarm systems |
Try two JCR NFPA 72 practice questions
These questions are from JCR’s NC low-voltage practice test. Use your 2013 NFPA 72 to find the rule before opening each answer.
1. Manual fire alarm box location
Under the 2013 NFPA 72, a manual fire alarm box must be located within what distance of each exit doorway on each floor?
- 36 in.
- 48 in.
- 60 in.
- 10 ft
Show answer and explanation
C. 60 inches (5 feet). Find 17.14.8.4. The question asks for distance from the exit doorway, not mounting height. Section 17.14.5 sets the operable part’s height at 42–48 inches above the floor.
2. Wall-mounted strobe height
Under the 2013 NFPA 72, what height range applies to the entire lens of a wall-mounted visible notification appliance? Assume the ceiling is high enough for standard wall mounting and no performance-based alternative is used.
- 40–60 in. above the finished floor
- 80–96 in. above the finished floor
- At least 90 in. above the finished floor
- Within 12 in. of the ceiling
Show answer and explanation
B. 80–96 inches above the finished floor. Find 18.5.5.1. Measure to the entire lens, not the center of the box. This is the standard wall-mounting range. Low ceilings and approved performance-based designs have separate provisions, which the question excludes.
Try a five-minute lookup drill
- Find “household” in the index and follow the references into Chapter 29.
- Find “notification appliances” and locate Chapter 18.
- Choose one practice question from each topic. Underline the words identifying the building and system type.
- Find the section supporting each answer. Read the rule and exceptions, then record the section number.
- The next day, answer both questions again without using your recorded references.
If you went to the wrong chapter, record why. If you confused a household smoke alarm with a commercial notification appliance, practice identifying the system and device first. If you missed an exception, reread the full rule before answering again.
Common NFPA 72 exam questions
Does every NC specialty exam require NFPA 72?
No. NFPA 72 is required for Limited, Intermediate, Unlimited, SP-SFD and SP-FA/LV exams.
Is NFPA 72 enough to study for SP-FA/LV?
No. You also need the NEC and the other subjects in that exam’s outline. See the NC fire alarm and low-voltage license guide for the full path.
Can I study with a newer NFPA 72?
For this exam, practice in the named 2013 edition. Newer text and section locations can lead you to an answer that doesn’t match the exam reference.
References checked October 25, 2026. Confirm the current bulletin for your exam date.
