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NM LP-5 INSTALLATION SERVICE AND REPAIR
EXAMINATION 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 Examination with this
comprehensive practice resource designed to support your licensing exam
preparation. It features exam-style questions covering LP gas installation, service and
repair procedures, system components, safety regulations, troubleshooting, code
compliance, and equipment maintenance. 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 Examination.
Multiple choice.
LICENSING, SCOPE & REGULATIONS (Questions 1–15)
Question 1: Under New Mexico Regulation and Licensing Department (RLD),
what is the primary scope of work authorized by an LP-5 license?
A. Residential electrical wiring up to 200A
B. Installation and repair of appliances, equipment, and piping for use with LP
gas in residences and commercial buildings
C. Journeyman electrician work for low voltage systems
D. HVAC ductwork and hydronic piping systems
Correct answer: B. Installation and repair of appliances, equipment, and
piping for use with LP gas in residences and commercial buildings
Rationale: An LP-5 license specifically authorizes the installation, service,
and repair of appliances, equipment, and piping for LP gas use in residential
and commercial buildings, including mobile homes and RVs. The scope does
NOT include HVAC ductwork or hydronic piping systems .
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Question 2: Which New Mexico statute defines the qualifications required for
an LP-5 contractor?
A. NMSA 1978, Chapter 60, Article 6
B. NMSA 1978, Chapter 53, Article 7
C. NMSA 1978, Chapter 60, Article 7
D. NMSA 1978, Chapter 53, Article 6
Correct answer: C. NMSA 1978, Chapter 60, Article 7
Rationale: Chapter 60, Article 7 of the New Mexico Statutes outlines the
licensing requirements for LP-5 contractors, including experience, bonding,
and insurance .
Question 3: Which New Mexico regulation specifically defines the license
classifications and fees for LP-gas work?
A. NMAC 14.10
B. NMAC 14.9.5
C. NMAC 19.15.40
D. NMAC 14.7.7
Correct answer: C. NMAC 19.15.40
Rationale: The New Mexico Administrative Code Title 19, Chapter 15, Part 40
establishes the New Mexico Liquefied Petroleum Gas Standard, including
licensing classifications, scopes, and fees .
Question 4: What is the annual fee for an LP-5 license in New Mexico?
A. $65.00
B. $90.00
C. $125.00
D. $250.00
**Correct answer: C. $125.00**
**Rationale:** The annual license fee for LP-5 (installation, service, and
repair) is $125.00 .
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Question 5: An LP-5 licensee is NOT authorized to perform which of the
following?
A. Install piping for LP gas in a mobile home
B. Service appliances in a commercial building
C. Install HVAC ductwork connected to an LP gas appliance
D. Repair piping attached to cargo containers
Correct answer: C. Install HVAC ductwork connected to an LP gas
appliance
Rationale: The LP-5 scope explicitly excludes HVAC ductwork or hydronic
piping systems connected to any appliance. Those specialties fall under
mechanical license classifications .
Question 6: How often must an LP-5 license be renewed in New Mexico?
A. Every 1 year
B. Every 2 years
C. Every 3 years
D. Every 5 years
Correct answer: C. Every 3 years
Rationale: New Mexico electrical and LP gas licenses, including LP-5, are
valid for 3 years and must be renewed accordingly .
Question 7: According to NMAC 14.10, an LP-5 contractor may supervise how
many unlicensed persons?
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 or per current rule .
NM LP-5 INSTALLATION SERVICE AND REPAIR
EXAMINATION 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 Examination with this
comprehensive practice resource designed to support your licensing exam
preparation. It features exam-style questions covering LP gas installation, service and
repair procedures, system components, safety regulations, troubleshooting, code
compliance, and equipment maintenance. 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 Examination.
Multiple choice.
LICENSING, SCOPE & REGULATIONS (Questions 1–15)
Question 1: Under New Mexico Regulation and Licensing Department (RLD),
what is the primary scope of work authorized by an LP-5 license?
A. Residential electrical wiring up to 200A
B. Installation and repair of appliances, equipment, and piping for use with LP
gas in residences and commercial buildings
C. Journeyman electrician work for low voltage systems
D. HVAC ductwork and hydronic piping systems
Correct answer: B. Installation and repair of appliances, equipment, and
piping for use with LP gas in residences and commercial buildings
Rationale: An LP-5 license specifically authorizes the installation, service,
and repair of appliances, equipment, and piping for LP gas use in residential
and commercial buildings, including mobile homes and RVs. The scope does
NOT include HVAC ductwork or hydronic piping systems .
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Question 2: Which New Mexico statute defines the qualifications required for
an LP-5 contractor?
A. NMSA 1978, Chapter 60, Article 6
B. NMSA 1978, Chapter 53, Article 7
C. NMSA 1978, Chapter 60, Article 7
D. NMSA 1978, Chapter 53, Article 6
Correct answer: C. NMSA 1978, Chapter 60, Article 7
Rationale: Chapter 60, Article 7 of the New Mexico Statutes outlines the
licensing requirements for LP-5 contractors, including experience, bonding,
and insurance .
Question 3: Which New Mexico regulation specifically defines the license
classifications and fees for LP-gas work?
A. NMAC 14.10
B. NMAC 14.9.5
C. NMAC 19.15.40
D. NMAC 14.7.7
Correct answer: C. NMAC 19.15.40
Rationale: The New Mexico Administrative Code Title 19, Chapter 15, Part 40
establishes the New Mexico Liquefied Petroleum Gas Standard, including
licensing classifications, scopes, and fees .
Question 4: What is the annual fee for an LP-5 license in New Mexico?
A. $65.00
B. $90.00
C. $125.00
D. $250.00
**Correct answer: C. $125.00**
**Rationale:** The annual license fee for LP-5 (installation, service, and
repair) is $125.00 .
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Question 5: An LP-5 licensee is NOT authorized to perform which of the
following?
A. Install piping for LP gas in a mobile home
B. Service appliances in a commercial building
C. Install HVAC ductwork connected to an LP gas appliance
D. Repair piping attached to cargo containers
Correct answer: C. Install HVAC ductwork connected to an LP gas
appliance
Rationale: The LP-5 scope explicitly excludes HVAC ductwork or hydronic
piping systems connected to any appliance. Those specialties fall under
mechanical license classifications .
Question 6: How often must an LP-5 license be renewed in New Mexico?
A. Every 1 year
B. Every 2 years
C. Every 3 years
D. Every 5 years
Correct answer: C. Every 3 years
Rationale: New Mexico electrical and LP gas licenses, including LP-5, are
valid for 3 years and must be renewed accordingly .
Question 7: According to NMAC 14.10, an LP-5 contractor may supervise how
many unlicensed persons?
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 or per current rule .
