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NM LP-5 INSTALLATION SERVICE AND REPAIR EXAM 2026
COMPLETE (110) CURRENT TESTING QUESTIONS AND
CORRECT ANSWERS WITH DETAILED RATIONALES.
NM LP-5
Prepare for the NM LP-5 Installation Service and Repair Exam with this comprehensive
practice resource designed to support your licensing exam preparation. It features
exam-style questions covering LP gas systems, installation procedures, service and
repair techniques, safety regulations, troubleshooting, equipment maintenance, and
New Mexico code requirements. Use it to reinforce essential concepts, assess your
knowledge, and build confidence before test day. An excellent study aid for
candidates preparing for the NM LP-5 Installation Service and Repair Exam.
MULTIPLE CHOICE.
NEW MEXICO REGULATIONS, LICENSING & SCOPE (Questions 1–15)
Question 1: The geometric formula for the area of a triangle is:
A. (1/2)bh
B. πr²
C. 2πr
D. l × w
Correct answer: A. (1/2)bh
Rationale: The area of a triangle is calculated using (1/2) × base × height.
Question 2: Under New Mexico Regulation and Licensing Department (RLD),
an LP-5 license primarily authorizes work on which type of systems?
A. Residential electrical wiring up to 200 amps
B. Low-voltage systems including fire alarms, security, and communications
C. General electrical contracting
D. HVAC ductwork and hydronic piping
Correct answer: B. Low-voltage systems including fire alarms, security,
and communications
Rationale: The LP-5 license is the New Mexico "Low Voltage, Fire Alarm,
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Security, Communications, and Telecommunications" license, not a general
electrical license .
Question 3: According to NMAC 19.15.40.15(D), an LP-5 licensee is
authorized to do all of the following EXCEPT:
A. Install or erect liquid transfer facilities
B. Install or repair piping and equipment attached to cargo containers
C. Install, service, and repair appliances, equipment, and piping for use with
LP gas
D. Install HVAC ductwork or hydronic piping systems connected to appliances
Correct answer: D. Install HVAC ductwork or hydronic piping systems
connected to appliances
Rationale: The scope of work for an LP-5 licensee explicitly does not include
the HVAC ductwork or hydronic piping systems connected to any appliance.
Those specialties fall under mechanical license classifications .
Question 4: Which New Mexico administrative code governs the LP-5 license?
A. NMAC Title 14, Chapter 10
B. NMAC Title 19, Chapter 15, Part 40
C. NMAC Title 14, Chapter 11
D. NMAC Title 16, Chapter 1
Correct answer: B. NMAC Title 19, Chapter 15, Part 40
Rationale: Title 19 - Natural Resources and Wildlife, Chapter 15 - Oil and Gas,
Part 40 specifically addresses the New Mexico Liquefied Petroleum Gas
Standard, where LP-5 licensing is defined .
Question 5: What is the annual fee for an LP-5 installation, service and repair
license in New Mexico?
A. $65.00
B. $100.00
C. $125.00
D. $150.00
**Correct answer: C. $125.00**
**Rationale:** NMAC 19.15.40.15(D) sets the annual fee for an LP-5 license at
$125.00 .
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Question 6: An LP-5 license holder must renew their license every:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Correct answer: C. 3 years
Rationale: New Mexico electrical licenses, including LP-5, are valid for 3
years .
Question 7: How many hours of continuing education (CE) are required for LP-
5 license renewal every 3 years?
A. 4 hours
B. 8 hours
C. 12 hours
D. 16 hours
Correct answer: B. 8 hours
Rationale: New Mexico requires 8 hours of approved continuing education
per renewal period for most electrical licenses .
Question 8: Which entity oversees LP-5 licensing in New Mexico?
A. New Mexico Public Regulation Commission
B. New Mexico Construction Industries Division (CID)
C. New Mexico Environment Department
D. New Mexico Department of Transportation
Correct answer: B. New Mexico Construction Industries Division (CID)
Rationale: The CID under the New Mexico Regulation and Licensing
Department (RLD) oversees construction-related licensing, including LP-5 .
Question 9: An LP-5 contractor may perform work on which of the following?
A. Fire alarm systems, access control, CCTV, data/telecom, and low-voltage
lighting
B. High-voltage transmission lines
C. Industrial motor controls (480V)
D. Kitchen range wiring (120V)
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Correct answer: A. Fire alarm systems, access control, CCTV,
data/telecom, and low-voltage lighting
Rationale: LP-5 covers low-voltage systems; high voltage and line voltage
power circuits require higher class licenses .
Question 10: According to New Mexico regulations, an LP-5 contractor may
supervise:
A. Unlimited number of unlicensed helpers
B. Only licensed electricians
C. Up to three unlicensed persons
D. No unlicensed persons
Correct answer: C. Up to three unlicensed persons
Rationale: New Mexico typically limits the ratio of unlicensed workers to
licensed persons; for LP-5, the common ratio is 1:3 .
Question 11: The LP-5 examination in New Mexico is administered by which
testing service?
A. Prometric
B. PSI (formerly AMP)
C. NM CID directly
D. Pearson VUE
Correct answer: B. PSI (formerly AMP)
Rationale: New Mexico contracts with PSI/AMP for licensing exams .
Question 12: What is the passing score for the New Mexico LP-5 exam?
A. 60%
B. 70%
C. 75%
D. 80%
Correct answer: B. 70%
Rationale: Most New Mexico electrical exams require a 70% to pass .
Question 13: Under NMAC 14.10, an LP-5 contractor's business must have:
A. A permanent physical address in New Mexico
B. A post office box only
NM LP-5 INSTALLATION SERVICE AND REPAIR EXAM 2026
COMPLETE (110) CURRENT TESTING QUESTIONS AND
CORRECT ANSWERS WITH DETAILED RATIONALES.
NM LP-5
Prepare for the NM LP-5 Installation Service and Repair Exam with this comprehensive
practice resource designed to support your licensing exam preparation. It features
exam-style questions covering LP gas systems, installation procedures, service and
repair techniques, safety regulations, troubleshooting, equipment maintenance, and
New Mexico code requirements. Use it to reinforce essential concepts, assess your
knowledge, and build confidence before test day. An excellent study aid for
candidates preparing for the NM LP-5 Installation Service and Repair Exam.
MULTIPLE CHOICE.
NEW MEXICO REGULATIONS, LICENSING & SCOPE (Questions 1–15)
Question 1: The geometric formula for the area of a triangle is:
A. (1/2)bh
B. πr²
C. 2πr
D. l × w
Correct answer: A. (1/2)bh
Rationale: The area of a triangle is calculated using (1/2) × base × height.
Question 2: Under New Mexico Regulation and Licensing Department (RLD),
an LP-5 license primarily authorizes work on which type of systems?
A. Residential electrical wiring up to 200 amps
B. Low-voltage systems including fire alarms, security, and communications
C. General electrical contracting
D. HVAC ductwork and hydronic piping
Correct answer: B. Low-voltage systems including fire alarms, security,
and communications
Rationale: The LP-5 license is the New Mexico "Low Voltage, Fire Alarm,
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Security, Communications, and Telecommunications" license, not a general
electrical license .
Question 3: According to NMAC 19.15.40.15(D), an LP-5 licensee is
authorized to do all of the following EXCEPT:
A. Install or erect liquid transfer facilities
B. Install or repair piping and equipment attached to cargo containers
C. Install, service, and repair appliances, equipment, and piping for use with
LP gas
D. Install HVAC ductwork or hydronic piping systems connected to appliances
Correct answer: D. Install HVAC ductwork or hydronic piping systems
connected to appliances
Rationale: The scope of work for an LP-5 licensee explicitly does not include
the HVAC ductwork or hydronic piping systems connected to any appliance.
Those specialties fall under mechanical license classifications .
Question 4: Which New Mexico administrative code governs the LP-5 license?
A. NMAC Title 14, Chapter 10
B. NMAC Title 19, Chapter 15, Part 40
C. NMAC Title 14, Chapter 11
D. NMAC Title 16, Chapter 1
Correct answer: B. NMAC Title 19, Chapter 15, Part 40
Rationale: Title 19 - Natural Resources and Wildlife, Chapter 15 - Oil and Gas,
Part 40 specifically addresses the New Mexico Liquefied Petroleum Gas
Standard, where LP-5 licensing is defined .
Question 5: What is the annual fee for an LP-5 installation, service and repair
license in New Mexico?
A. $65.00
B. $100.00
C. $125.00
D. $150.00
**Correct answer: C. $125.00**
**Rationale:** NMAC 19.15.40.15(D) sets the annual fee for an LP-5 license at
$125.00 .
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Question 6: An LP-5 license holder must renew their license every:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Correct answer: C. 3 years
Rationale: New Mexico electrical licenses, including LP-5, are valid for 3
years .
Question 7: How many hours of continuing education (CE) are required for LP-
5 license renewal every 3 years?
A. 4 hours
B. 8 hours
C. 12 hours
D. 16 hours
Correct answer: B. 8 hours
Rationale: New Mexico requires 8 hours of approved continuing education
per renewal period for most electrical licenses .
Question 8: Which entity oversees LP-5 licensing in New Mexico?
A. New Mexico Public Regulation Commission
B. New Mexico Construction Industries Division (CID)
C. New Mexico Environment Department
D. New Mexico Department of Transportation
Correct answer: B. New Mexico Construction Industries Division (CID)
Rationale: The CID under the New Mexico Regulation and Licensing
Department (RLD) oversees construction-related licensing, including LP-5 .
Question 9: An LP-5 contractor may perform work on which of the following?
A. Fire alarm systems, access control, CCTV, data/telecom, and low-voltage
lighting
B. High-voltage transmission lines
C. Industrial motor controls (480V)
D. Kitchen range wiring (120V)
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Correct answer: A. Fire alarm systems, access control, CCTV,
data/telecom, and low-voltage lighting
Rationale: LP-5 covers low-voltage systems; high voltage and line voltage
power circuits require higher class licenses .
Question 10: According to New Mexico regulations, an LP-5 contractor may
supervise:
A. Unlimited number of unlicensed helpers
B. Only licensed electricians
C. Up to three unlicensed persons
D. No unlicensed persons
Correct answer: C. Up to three unlicensed persons
Rationale: New Mexico typically limits the ratio of unlicensed workers to
licensed persons; for LP-5, the common ratio is 1:3 .
Question 11: The LP-5 examination in New Mexico is administered by which
testing service?
A. Prometric
B. PSI (formerly AMP)
C. NM CID directly
D. Pearson VUE
Correct answer: B. PSI (formerly AMP)
Rationale: New Mexico contracts with PSI/AMP for licensing exams .
Question 12: What is the passing score for the New Mexico LP-5 exam?
A. 60%
B. 70%
C. 75%
D. 80%
Correct answer: B. 70%
Rationale: Most New Mexico electrical exams require a 70% to pass .
Question 13: Under NMAC 14.10, an LP-5 contractor's business must have:
A. A permanent physical address in New Mexico
B. A post office box only
