New Mexico Low Voltage Journeyman (NM ES-
3) Exam Prep 2025/2026 – Study Guide
New Mexico Low Voltage Journeyman (NM ES-3) Exam Prep 2025/2026
Section 1: New Mexico Statutes, Rules, and Administration (Questions 1-20)
1. Which New Mexico state agency is responsible for licensing and regulating Low Voltage
Journeymen?
A) New Mexico Department of Transportation
B) New Mexico Regulation and Licensing Department
C) New Mexico Public Regulation Commission ✓
D) New Mexico Department of Workforce Solutions
2. What is the minimum age requirement to obtain a Low Voltage Journeyman license in New
Mexico?
A) 16 years old
B) 18 years old ✓
C) 21 years old
D) There is no minimum age
3. A Low Voltage Journeyman license in New Mexico is valid for a period of:
A) One year
B) Two years
C) Three years ✓
D) Five years
4. According to NMAC 14.10.3, who is permitted to pull a permit for low voltage work?
A) The property owner only
B) A licensed Low Voltage Journeyman or a Master Electrician ✓
C) Any electrical apprentice
D) A general contractor
5. It is a violation of New Mexico law for a licensee to perform work outside the scope of their
license. What is a potential consequence?
A) A verbal warning
B) License suspension or revocation ✓
,C) A small fine with no other action
D) Mandatory re-training
6. The "One-Family Dwelling Act" in New Mexico allows:
A) Anyone to perform low voltage work
B) A homeowner to perform electrical work on their own residence ✓
C) Journeymen to work without a permit
D) Contractors to hire unlicensed workers
7. A Low Voltage Journeyman is primarily responsible for:
A) Supervising Master Electricians
B) The supervision and installation of all low voltage systems under their permit ✓
C) Only the design of low voltage systems
D) Performing high voltage transformer work
8. To renew a Low Voltage Journeyman license, the licensee must:
A) Pass the exam again
B) Complete continuing education hours ✓
C) Provide a new employment verification letter
D) No requirements, it's automatic
9. What is the primary purpose of the New Mexico Construction Industries Division (CID)?
A) To build public infrastructure
B) To promote the use of solar energy
C) To protect the public health, safety, and welfare through licensing and enforcement ✓
D) To provide funding for construction projects
10. If you witness a serious violation of the electrical code that creates an immediate hazard,
you should:
A) Ignore it, it's not your problem
B) Report it to the Construction Industries Division ✓
C) Fix it yourself without a permit
D) Wait until the next inspection to mention it
11. Working on a project without a required permit can result in:
A) No consequences if the work is done correctly
B) Only a stop-work order
C) Fines and penalties for the contractor and/or licensee ✓
D) A simple warning for first-time offenders
,12. The scope of work for an ES-3 licensee includes which of the following systems?
A) 120V branch circuit wiring in a house
B) Fire alarm, security, and data cabling ✓
C) Main service panel installation
D) HVAC line voltage wiring
13. A person who offers to perform low voltage work for compensation without a license is
guilty of:
A) A misdemeanor ✓
B) A felony
C) A civil infraction only
D) No crime, it's just a violation of policy
14. Continuing education for license renewal must be completed:
A) Within the 12 months preceding license expiration ✓
B) Anytime during the license cycle
C) Only in a classroom setting
D) Only on topics related to data cabling
15. Who is ultimately responsible for ensuring all work complies with the adopted codes and
standards?
A) The property owner
B) The building inspector
C) The licensed individual who pulled the permit ✓
D) The apprentice who performed the work
16. The "Rules of Conduct" for licensees include which of the following?
A) Using false evidence to obtain a license
B) Working while license is suspended
C) Abandoning a project without justification
D) All of the above ✓
17. An electrical permit becomes invalid if the work is not started within ____ days of
issuance.
A) 30
B) 90
C) 180 ✓
D) 365
, 18. A "Master Low Voltage" license is required to:
A) Perform any low voltage installation
B) Supervise other journeymen and obtain permits for a contracting business ✓
C) Work on systems over 100 volts
D) Design systems for commercial buildings only
19. A final inspection request must be made:
A) Before any work begins
B) After the permit has expired
C) When the project is ready for the inspector's review ✓
D) Only for projects over $10,000
20. The New Mexico State Electrical Code is generally based on the:
A) International Building Code (IBC)
B) National Electrical Code (NEC) ✓
C) National Fire Protection Association (NFPA) 72
D) Underwriters Laboratories (UL) Standards
Section 2: National Electrical Code (NEC) - General & Article 725 (Questions 21-40)
21. According to the NEC, what does the abbreviation "CL2" stand for?
A) Class 2 Circuit ✓
B) Conduit Level 2
C) Cable Listing 2
D) Current Limited 2
22. Which article of the NEC specifically covers Remote-Control, Signaling, and Power-Limited
Circuits?
A) Article 690
B) Article 760
C) Article 725 ✓
D) Article 800
23. Power-limited circuits are defined as being supplied by a source that has a maximum
output of:
A) 30 volts and 1000 VA
B) 100 volts and 10 amps
C) 50 volts and 5 amps
D) 30 volts and 100 VA for AC, or 60 volts and 100 VA for DC ✓
3) Exam Prep 2025/2026 – Study Guide
New Mexico Low Voltage Journeyman (NM ES-3) Exam Prep 2025/2026
Section 1: New Mexico Statutes, Rules, and Administration (Questions 1-20)
1. Which New Mexico state agency is responsible for licensing and regulating Low Voltage
Journeymen?
A) New Mexico Department of Transportation
B) New Mexico Regulation and Licensing Department
C) New Mexico Public Regulation Commission ✓
D) New Mexico Department of Workforce Solutions
2. What is the minimum age requirement to obtain a Low Voltage Journeyman license in New
Mexico?
A) 16 years old
B) 18 years old ✓
C) 21 years old
D) There is no minimum age
3. A Low Voltage Journeyman license in New Mexico is valid for a period of:
A) One year
B) Two years
C) Three years ✓
D) Five years
4. According to NMAC 14.10.3, who is permitted to pull a permit for low voltage work?
A) The property owner only
B) A licensed Low Voltage Journeyman or a Master Electrician ✓
C) Any electrical apprentice
D) A general contractor
5. It is a violation of New Mexico law for a licensee to perform work outside the scope of their
license. What is a potential consequence?
A) A verbal warning
B) License suspension or revocation ✓
,C) A small fine with no other action
D) Mandatory re-training
6. The "One-Family Dwelling Act" in New Mexico allows:
A) Anyone to perform low voltage work
B) A homeowner to perform electrical work on their own residence ✓
C) Journeymen to work without a permit
D) Contractors to hire unlicensed workers
7. A Low Voltage Journeyman is primarily responsible for:
A) Supervising Master Electricians
B) The supervision and installation of all low voltage systems under their permit ✓
C) Only the design of low voltage systems
D) Performing high voltage transformer work
8. To renew a Low Voltage Journeyman license, the licensee must:
A) Pass the exam again
B) Complete continuing education hours ✓
C) Provide a new employment verification letter
D) No requirements, it's automatic
9. What is the primary purpose of the New Mexico Construction Industries Division (CID)?
A) To build public infrastructure
B) To promote the use of solar energy
C) To protect the public health, safety, and welfare through licensing and enforcement ✓
D) To provide funding for construction projects
10. If you witness a serious violation of the electrical code that creates an immediate hazard,
you should:
A) Ignore it, it's not your problem
B) Report it to the Construction Industries Division ✓
C) Fix it yourself without a permit
D) Wait until the next inspection to mention it
11. Working on a project without a required permit can result in:
A) No consequences if the work is done correctly
B) Only a stop-work order
C) Fines and penalties for the contractor and/or licensee ✓
D) A simple warning for first-time offenders
,12. The scope of work for an ES-3 licensee includes which of the following systems?
A) 120V branch circuit wiring in a house
B) Fire alarm, security, and data cabling ✓
C) Main service panel installation
D) HVAC line voltage wiring
13. A person who offers to perform low voltage work for compensation without a license is
guilty of:
A) A misdemeanor ✓
B) A felony
C) A civil infraction only
D) No crime, it's just a violation of policy
14. Continuing education for license renewal must be completed:
A) Within the 12 months preceding license expiration ✓
B) Anytime during the license cycle
C) Only in a classroom setting
D) Only on topics related to data cabling
15. Who is ultimately responsible for ensuring all work complies with the adopted codes and
standards?
A) The property owner
B) The building inspector
C) The licensed individual who pulled the permit ✓
D) The apprentice who performed the work
16. The "Rules of Conduct" for licensees include which of the following?
A) Using false evidence to obtain a license
B) Working while license is suspended
C) Abandoning a project without justification
D) All of the above ✓
17. An electrical permit becomes invalid if the work is not started within ____ days of
issuance.
A) 30
B) 90
C) 180 ✓
D) 365
, 18. A "Master Low Voltage" license is required to:
A) Perform any low voltage installation
B) Supervise other journeymen and obtain permits for a contracting business ✓
C) Work on systems over 100 volts
D) Design systems for commercial buildings only
19. A final inspection request must be made:
A) Before any work begins
B) After the permit has expired
C) When the project is ready for the inspector's review ✓
D) Only for projects over $10,000
20. The New Mexico State Electrical Code is generally based on the:
A) International Building Code (IBC)
B) National Electrical Code (NEC) ✓
C) National Fire Protection Association (NFPA) 72
D) Underwriters Laboratories (UL) Standards
Section 2: National Electrical Code (NEC) - General & Article 725 (Questions 21-40)
21. According to the NEC, what does the abbreviation "CL2" stand for?
A) Class 2 Circuit ✓
B) Conduit Level 2
C) Cable Listing 2
D) Current Limited 2
22. Which article of the NEC specifically covers Remote-Control, Signaling, and Power-Limited
Circuits?
A) Article 690
B) Article 760
C) Article 725 ✓
D) Article 800
23. Power-limited circuits are defined as being supplied by a source that has a maximum
output of:
A) 30 volts and 1000 VA
B) 100 volts and 10 amps
C) 50 volts and 5 amps
D) 30 volts and 100 VA for AC, or 60 volts and 100 VA for DC ✓
