100+ Free NC Low Voltage Practice Questions

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In NC, who pulls the permit for fire alarm installations?

Licensed electrical contractor

Fire marshal

General contractor

Building owner

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Free Low Voltage Contractor Practice Test by State 2026: 2,800+ Questions25 min read

2026 Statistics

Key Facts: NC Low Voltage Exam

70%

Passing Score

NCBEEC

2 years

Experience Required

NCBEEC

$60

Application Fee

NCBEEC

2020 NEC

Code Edition

NCBEEC

100 Q

Practice Questions

OpenExamPrep

The NCBEEC SP-LV license requires 2 years experience, character references, and passing an open-book exam with 70% through PSI Exams based on the 2020 NEC.

Sample NC Low Voltage Practice Questions

Try these sample questions to test your NC Low Voltage exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which North Carolina board issues the SP-LV (Low Voltage) specialty license?

A.NC State Fire Marshal's Office

B.NC Board of Examiners of Electrical Contractors (NCBEEC)

C.NC Department of Insurance

D.NC Alarm Systems Licensing Board

Explanation: The NCBEEC administers the SP-LV license classification for low voltage system installers in North Carolina. This board regulates all electrical contractor licensing in the state, including specialty classifications.

2How many years of experience are required for the NC SP-LV license examination?

A.1 year

B.2 years

C.3 years

D.4 years

Explanation: The NCBEEC requires a minimum of 2 years of experience for the SP-LV classification, with at least 1 year being primary experience in low voltage work. The remaining year can be primary, secondary, or a combination.

3What is the minimum passing score on the NCBEEC SP-LV licensing exam?

A.60%

B.65%

C.70%

D.75%

Explanation: All NCBEEC licensing examinations, including the SP-LV exam, require a minimum score of 70% to pass. The exam is administered through PSI Exams.

4Which edition of the NEC does North Carolina use for licensing examinations?

A.2017 NEC

B.2020 NEC

C.2023 NEC

D.2026 NEC

Explanation: As of 2026, the NCBEEC bases all board examinations on the 2020 National Electrical Code. Candidates should use the 2020 NEC to prepare for the exam.

5Under NEC Article 725, what are the three classes of remote-control and signaling circuits?

A.Class A, B, C

B.Class 1, 2, 3

C.Type 1, 2, 3

D.Grade 1, 2, 3

Explanation: NEC Article 725 defines Class 1, Class 2, and Class 3 circuits, each with different voltage and power limitations determining wiring methods, cable types, and installation requirements.

6What NEC article covers fire alarm system installations?

A.Article 700

B.Article 725

C.Article 760

D.Article 800

Explanation: NEC Article 760 covers fire alarm system installations including power-limited and non-power-limited circuits, cable types, wiring methods, and separation requirements.

7What cable type is required for power-limited fire alarm circuits in plenum spaces?

A.FPL

B.FPLR

C.FPLP

D.CM

Explanation: FPLP (Fire Power-Limited Plenum) cable must be used in plenum spaces per NEC Article 760. Plenum-rated cables have low smoke and flame-spread characteristics for air-handling spaces.

8According to NFPA 72, what is the minimum standby battery capacity for a fire alarm system?

A.12 hours standby plus 5 minutes alarm

B.24 hours standby plus 5 minutes alarm

C.24 hours standby plus 15 minutes alarm

D.48 hours standby

Explanation: NFPA 72 requires secondary power to operate the system for 24 hours in standby plus 5 minutes of alarm, ensuring functionality during extended power outages.

9What is the maximum horizontal cable run per TIA-568?

A.50 meters

B.90 meters

C.100 meters

D.150 meters

Explanation: TIA-568 limits horizontal cable runs to 90 meters from telecom room to work area outlet. Total channel including patch cords cannot exceed 100 meters.

10What must an applicant submit to the NCBEEC as part of the SP-LV license application?

A.Only the fee

B.Application, verified experience, and character references

C.Application and insurance only

D.Apprenticeship certificate

Explanation: NCBEEC requires a completed application with verified experience, plus written statements from at least two responsible persons attesting to good character. Applicants must be at least 18 years old.

About the NC Low Voltage Exam

The North Carolina SP-LV exam covers low voltage system installation including fire alarm, security, telecommunications, and structured cabling. The NCBEEC administers the open-book exam based on the 2020 NEC.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

$60 application fee (NC Board of Examiners of Electrical Contractors (NCBEEC) / PSI Exams)

NC Low Voltage Exam Content Outline

20%

NC State Regulations

NCBEEC SP-LV licensing, Alarm Systems Licensing Board, permits, NC Building Code

25%

NEC Codes & Standards

NEC Articles 725, 760, 770, 800, circuit classifications, cable types

20%

Systems & Technology

Fire alarm, security, access control, structured cabling, IP systems

20%

Installation Practices

Wiring methods, terminations, firestopping, cable management

15%

Safety & Testing

OSHA safety, cable certification, NFPA 72 testing, surge protection

How to Pass the NC Low Voltage Exam

What You Need to Know

Passing score: 70%
Exam length: 100 questions
Time limit: 2 hours
Exam fee: $60 application fee

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

NC Low Voltage Study Tips from Top Performers

1Know the dual-licensing structure: NCBEEC SP-LV for installers vs Alarm Systems Licensing Board for monitoring companies

2Bring your 2020 NEC to the open-book exam — tab key sections in Articles 725, 760, 770, and 800

3Practice fire alarm battery calculations: 24h standby + 5min alarm + 20% margin

4Study TIA-568 horizontal run limits, cable categories, and T568B termination

5Review NFPA 72 Chapter 14 inspection/testing frequencies

Frequently Asked Questions

What is the NC SP-LV license?

The SP-LV (Special Restricted Low Voltage) is a specialty license from the NCBEEC for installing low voltage systems including fire alarm, security, telecom, and structured cabling.

What experience is needed for the SP-LV license?

2 years of experience with at least 1 year primary in low voltage work, plus two character references and application to NCBEEC.

What code book should I study?

The NCBEEC bases exams on the 2020 NEC. The exam is open-book, so bring your 2020 NEC to the test.

Who administers the SP-LV exam?

PSI Exams administers the test. After NCBEEC approves your application, you receive scheduling instructions from PSI.