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New Mexico ES-3J Low Voltage Journeyman EXAM QUESTIONS AND CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS YEAR – JUST RELEASED.pdf

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Tap on AVAILABLE IN BUNDLE/PACKAGE DEAL to unlock free bonus exams – save more while you get what you need. The New Mexico ES-3J Low Voltage Journeyman Exam Questions and Correct Verified Solutions – Latest Updated Edition is a comprehensive study resource designed to help candidates prepare for the New Mexico ES-3J Journeyman Low Voltage Special Systems certification examination administered through the New Mexico Regulation and Licensing Department (RLD) and PSI. The current New Mexico classification identifies ES-3J as the journeyman classification for sound, intercommunication, electrical alarm systems, and systems operating at 50 volts and under. The classification requires two years of experience, and an ES-3J certificate holder may work under an ES-3, ER-1, or EE-98 contractor license within the applicable scope. This preparation resource covers major ES-3J low-voltage topics, including electrical and electronic fundamentals, grounding and bonding, conductors and cables, power supplies, sound systems, intercommunication systems, fire alarms, security and intrusion systems, computer/data systems, CCTV, CATV/MATV, testing equipment, troubleshooting, and applicable New Mexico requirements. A major section focuses on basic electricity and electronics, including voltage, current, resistance, power, polarity, series and parallel circuits, transformers, batteries, power supplies, relays, switches, signal transmission, and fundamental troubleshooting principles. The guide also reviews grounding and bonding, including grounding requirements for low-voltage equipment, bonding, communications-system grounding, equipment grounding, and safe connections between low-voltage systems and building electrical infrastructure. Conductors and cables receive dedicated attention, including cable identification, conductor types, installation methods, terminations, splicing, cable support, physical protection, bend-radius considerations, separation from other systems, and appropriate cable applications. The resource covers sound and intercommunication systems, including speakers, amplifiers, microphones, signal paths, impedance, distribution systems, control equipment, wiring methods, and common audio-system troubleshooting scenarios. Electrical alarm and security systems are another major area. Candidates review intrusion-detection devices, initiating devices, alarm panels, supervised circuits, notification appliances, access-control components, power supplies, door controls, and system interconnections. The material also addresses fire-alarm systems, including initiating devices, notification appliances, control panels, signaling circuits, power supplies, supervision, testing, and troubleshooting. Questions emphasize recognizing appropriate installation and maintenance practices rather than relying solely on memorization. Computer and data systems are included through coverage of structured cabling, data transmission, connectors, patch panels, equipment rooms, cable testing, network components, labeling, and troubleshooting connectivity problems. The resource further covers CCTV systems, including cameras, video transmission, recording equipment, power requirements, cabling, connectors, signal-quality problems, system configuration, and diagnostic procedures. CATV/MATV systems are also reviewed, including coaxial cable, splitters, distribution equipment, amplifiers, antennas, connectors, grounding, signal loss, and troubleshooting. A dedicated section addresses testing and troubleshooting, helping candidates determine which test instrument or procedure is appropriate for identifying opens, shorts, incorrect terminations, loss of power, signal problems, defective devices, and wiring faults. The resource also reinforces the scope of ES-3J. The classification is not a general electrical journeyman credential; it is specifically limited to the qualifying low-voltage/special-system work described by New Mexico's classification rules. For 2026 preparation, candidates should verify the current RLD rules and PSI examination information before testing. New Mexico's Construction Industries Division has been undertaking rulemaking affecting NMAC 14.6.4 (Journeyman Certification) and NMAC 14.6.6 (Classifications and Scopes) during 2026, so applicants should confirm which provisions are effective when they schedule their examination. The RLD directs candidates to PSI for examination registration and states that an examination registration is valid for one exam; after passing, the passing score is valid for one year. RLD also provides the applicable rules concerning permitted reference materials and examination preparation. The resource should be treated as a study and practice resource rather than an official or leaked PSI examination. Claims that third-party materials contain “actual,” “verified,” or “just released” examination questions should not be interpreted as confirmation that they reproduce a secure New Mexico examination. Aligned with the current ES-3J classification, this study guide supports preparation in electrical/electronic fundamentals, grounding and bonding, conductors, power supplies, sound and intercommunication systems, electrical alarms, fire alarms, security systems, data and computer systems, CCTV, CATV/MATV, testing, troubleshooting, safety, and New Mexico licensing requirements. Ideal for New Mexico low-voltage technicians, alarm-system installers, fire-alarm technicians, security professionals, structured-cabling technicians, sound and video installers, telecommunications workers, and candidates preparing for ES-3J journeyman certification, this resource provides focused review material, exam-style practice questions, and solution explanations to support effective licensing preparation.

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Page 1 of 102



New Mexico ES-3J Low Voltage Journeyman EXAM QUESTIONS
AND CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS
YEAR – JUST RELEASED
New Mexico ES-3J Low Voltage Journeyman Exam
250 Practice Questions with Rationales


EXAM COVERAGE OVERVIEW (10 Key Points)
1. License Scope – The ES-3J license authorizes work on sound, intercommunication,
electrical alarm systems, and other systems operating at 50 volts and under . This
includes fire alarms, security, access control, CCTV, and communications cabling.
2. Governing Agency – The New Mexico Regulation and Licensing Department (RLD),
Construction Industries Division (CID), administers licensing and examinations .
3. Exam Format – The exam consists of 50 questions with a 120-minute time limit and
a 75% passing score required . The exam is open book .
4. Reference Code – The exam is based on the 2020 National Electrical Code (NEC),
effective for exams starting December 15, 2024 .
5. Key NFPA Standards – NFPA 72 (Fire Alarm and Signaling Codes) is a primary reference,
covering smoke detector spacing, notification appliance synchronization, and fire alarm
circuit requirements .
6. Continuing Education – Journeyman license renewal requires 16 hours of continuing
education every 3 years, with a minimum of 8 hours of NEC code training .
7. Application & Renewal – Renewal applications are mailed 30 days prior to expiration,
but timely renewal is the licensee's sole responsibility. Incomplete applications will be
rejected .
8. Exam Domains – The exam covers: Fire Detection & Alarms (7 questions), Electrical &
Electronic Knowledge (9), Sound & Video Systems (5), Computer & Data Systems (5),
Intrusion Detection & Alarms (4), Conductors (4), and more .
9. Class 2 & 3 Circuits – Class 3 circuits are limited to 30V DC and 100VA (for power-
limited), with minimum wire size of 18 AWG (NEC 725.179 H). Class 2 circuits using 18
AWG copper have a maximum ampacity of 5A .
10. Grounding & Bonding – The primary purpose of grounding in low-voltage systems is to
prevent electrical shock and system damage by providing a safe path for fault currents .
Telecommunications grounding must be bonded to the building's main grounding
electrode system (NEC 800.24) .

, Page 2 of 102




QUESTIONS 1-250




LICENSING & REGULATIONS (Questions 1-15)


1. What is the maximum voltage scope for an ES-3J licensed journeyman in New Mexico?

A) 120V AC

B) 50V or less

C) 240V AC

D) 600V AC


Correct Answer: B

Rationale: The ES-3J license in New Mexico specifically restricts the holder to work on systems

operating at 50 volts or less, both AC and DC . This is the core definition of the low-voltage

special systems license scope.


2. Which New Mexico agency administers the ES-3J licensing examination?

A) New Mexico Department of Transportation

B) New Mexico Regulation and Licensing Department (RLD), Construction Industries Division

(CID)

C) New Mexico Public Regulation Commission

D) New Mexico Department of Workforce Solutions

, Page 3 of 102


Correct Answer: B

Rationale: The New Mexico Regulation and Licensing Department (RLD), through its

Construction Industries Division (CID), administers journeyman licensing and examinations for

all trade classifications, including the ES-3J low voltage license .


3. What is the minimum passing score required for the ES-3J examination?

A) 65%

B) 70%

C) 75%

D) 80%


Correct Answer: C

Rationale: The ES-3J examination requires a minimum passing score of 75% . This is consistent

with other New Mexico electrical trade licensing exams.


4. How many questions are on the ES-3J licensing examination?

A) 30

B) 50

C) 75

D) 100


Correct Answer: B

Rationale: The ES-3J exam consists of 50 scored questions . Candidates have 120 minutes to

complete the exam.

, Page 4 of 102


5. What is the time limit for completing the ES-3J examination?

A) 90 minutes

B) 120 minutes

C) 150 minutes

D) 180 minutes


Correct Answer: B

Rationale: Candidates are allotted 120 minutes (2 hours) to complete the 50-question ES-3J

exam .


6. According to New Mexico regulations, how many hours of continuing education are

required for journeyman license renewal?

A) 8 hours every year

B) 16 hours every 3 years

C) 24 hours every 2 years

D) 32 hours every 4 years


Correct Answer: B

Rationale: Prior to renewal, journeyman certificate holders are required to complete a

minimum of 16 hours of approved course work .


7. How many hours of continuing education must cover the current CID code?

A) 4 hours

B) 6 hours

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