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Key Facts: New Jersey Low Voltage Practice Exam
Varies
Official Credential
NJ Board of Examiners of Electrical Contractors
Not one total
Official Exam Format
Credential-specific bulletin required
100 Q
Practice Questions
OpenExamPrep
New Jersey does not publish one generic “low voltage contractor” exam matching this route. Use the 100 local questions for diagnostic practice, then confirm the exact credential, legal scope, official item count, time limit, passing standard, fee, and reference list with the responsible authority.
Sample New Jersey Low Voltage Practice Practice Questions
Try these sample questions to review concepts for the New Jersey Low Voltage Practice exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which New Jersey state board is responsible for licensing electrical contractors, including those performing low voltage work?
A.NJ Division of Consumer Affairs
B.NJ Board of Examiners of Electrical Contractors
C.NJ Department of Community Affairs
D.NJ Fire Safety Commission
Explanation: The New Jersey Board of Examiners of Electrical Contractors oversees the licensing of electrical contractors in the state, including those performing fire alarm, burglar alarm, and other low voltage installations. The board operates under the Division of Consumer Affairs.
2In New Jersey, what type of license is required to install burglar alarm systems?
A.General Electrical Contractor license only
B.Burglar Alarm Business license from NJ State Police
C.Fire Alarm license from DCA
D.No license is required for burglar alarm work
Explanation: New Jersey requires a Burglar Alarm Business license issued through the NJ State Police for companies installing burglar alarm systems. This is separate from the electrical contractor license and addresses the security industry specifically.
3Under NEC Article 725, what are the three classes of remote-control, signaling, and power-limited circuits?
A.Class A, Class B, and Class C
B.Class 1, Class 2, and Class 3
C.Type 1, Type 2, and Type 3
D.Level A, Level B, and Level C
Explanation: NEC Article 725 defines three classes of circuits: Class 1, Class 2, and Class 3. Each class has different voltage and power limitations, which determine wiring methods, cable types, and installation requirements for low voltage systems.
4What is the maximum voltage allowed for a Class 2 circuit power source under NEC Article 725?
A.30 volts
B.100 volts
C.150 volts
D.600 volts
Explanation: NEC Article 725 limits Class 2 circuit power sources to a maximum of 100 volts. Class 2 circuits are considered to have inherently limited energy that does not present a fire or shock hazard, making them suitable for many low voltage applications.
5In New Jersey, which code edition forms the basis for electrical installations, including low voltage work?
A.2014 NEC
B.2017 NEC
C.2020 NEC
D.2023 NEC
Explanation: New Jersey has adopted the 2020 National Electrical Code (NEC/NFPA 70) as the basis for electrical installations. All low voltage contractors must comply with this edition when performing installations in the state.
6Which NEC article specifically covers the installation of fire alarm systems?
A.Article 700
B.Article 725
C.Article 760
D.Article 800
Explanation: NEC Article 760 covers the installation of wiring and equipment for fire alarm systems, including power-limited and non-power-limited fire alarm circuits. This article specifies cable types, wiring methods, and separation requirements specific to fire alarm installations.
7What cable type is required for power-limited fire alarm circuits installed in plenum spaces?
A.FPL
B.FPLR
C.FPLP
D.CM
Explanation: FPLP (Fire Power-Limited Plenum) cable must be used for power-limited fire alarm circuits installed in plenum spaces. Plenum-rated cables have low smoke and flame-spread characteristics required for air-handling spaces per NEC Article 760.
8According to NEC Article 725, Class 2 and Class 3 circuit cables must be separated from power conductors by at least what distance if not in a raceway?
A.No separation required
B.2 inches
C.6 inches
D.12 inches
Explanation: NEC Article 725 requires a minimum 2-inch separation between Class 2/Class 3 circuit cables and power conductors when they are not installed in a raceway or separated by a barrier. This prevents electromagnetic interference and potential hazards.
9What is the standard impedance for most structured cabling systems used in commercial networks?
A.50 ohms
B.75 ohms
C.100 ohms
D.120 ohms
Explanation: Most structured cabling systems for commercial networks use 100-ohm unshielded twisted pair (UTP) or shielded twisted pair (STP) cables. This impedance is standard for Category 5e, 6, and 6A cables used in Ethernet networking.
10In a structured cabling installation, what is the maximum horizontal cable run length from the telecommunications room to the work area outlet per TIA-568?
A.50 meters
B.90 meters
C.100 meters
D.150 meters
Explanation: TIA-568 limits the horizontal cable run (permanent link) to 90 meters (295 feet) from the telecommunications room to the work area outlet. The total channel length including patch cords at both ends cannot exceed 100 meters.
About the New Jersey Low Voltage Practice Practice Questions
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