COMPLETE TESTBANK Verified Q&A | 2026/2027 | NEC
2020 | NFPA 72
1. Which New Mexico state agency regulates low voltage contractor
licensing?
A) NM Public Regulation Commission
B) NM Construction Industries Division (CID)
C) NM Department of Workforce Solutions
D) NM Energy, Minerals and Natural Resources Dept
Correct Answer: B) NM Construction Industries Division (CID)
Rationale: The New Mexico Construction Industries Division (CID) under the
Regulation and Licensing Department regulates all contractor licensing in the
state, including low voltage electrical specialties such as ES-3 and ES-7
classifications .
2. What is the ES-3 license classification in New Mexico?
A) General Electrical Contractor
B) Sound and Alarm Systems Contractor
C) Telephone Systems Contractor
D) Plumbing Contractor
Correct Answer: B) Sound and Alarm Systems Contractor
,Rationale: The ES-3 classification in New Mexico covers Sound and Alarm
Systems contractors, authorizing installation, service, and repair of sound
systems, fire alarm systems, burglar alarm systems, and similar low voltage
signaling systems .
3. What is the ES-7 license classification in New Mexico?
A) Sound and Alarm Systems
B) Telephone Systems Contractor
C) General Electrical
D) Fire Sprinkler Contractor
Correct Answer: B) Telephone Systems Contractor
Rationale: The ES-7 classification covers Telephone Systems contractors,
authorizing the installation, service, and repair of telephone systems, data
cabling, and related communications infrastructure .
4. What edition of the NEC has New Mexico adopted for electrical
installations?
A) 2014 NEC
B) 2017 NEC
C) 2020 NEC
D) 2023 NEC
Correct Answer: C) 2020 NEC
Rationale: New Mexico has adopted the 2020 National Electrical Code
(NEC/NFPA 70) for electrical installations. All low voltage contractors must
comply with this edition .
,5. In New Mexico, what experience requirement must an applicant
meet for the ES-3 license?
A) No experience required
B) 1 year of experience
C) 2 years of experience in sound and alarm systems
D) 4 years of journeyman-level experience
Correct Answer: C) 2 years of experience in sound and alarm systems
Rationale: New Mexico CID requires applicants for the ES-3 license to
demonstrate at least 2 years of experience in the installation and service of
sound and alarm systems .
6. What does CCTV stand for?
A) Central Cable Television
B) Closed Circuit Television
C) Controlled Circuit Television
D) Computer Controlled Television
Correct Answer: B) Closed Circuit Television
Rationale: CCTV stands for Closed Circuit Television, a standard acronym for
video surveillance systems .
7. What is the maximum bandwidth of a standard television channel?
A) 3 MHz
B) 6 MHz
, C) 12 MHz
D) 25 MHz
Correct Answer: B) 6 MHz
Rationale: A standard analog or digital television channel has a maximum
bandwidth of 6 megahertz .
8. What is the NFPA code that refers to household firefighting
equipment?
A) NFPA 70
B) NFPA 72
C) NFPA 101
D) NFPA 13
Correct Answer: B) NFPA 72
Rationale: NFPA 72 is the National Fire Alarm and Signaling Code, which
covers fire alarm systems and household firefighting equipment
requirements .
9. What is the maximum number of supervisory switches permitted to
be connected to actuate a single transmitter?
A) 10
B) 15
C) 20
D) 25
Correct Answer: C) 20