NC Plumbing, Heating & Fire Sprinkler
Contractors Board – Heating (HVAC)
Contractor Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2027 Q&A| Instant
Download Pdf.
1. Under North Carolina law, which description most accurately defines a
Heating Group 3 system?
A. A hydronic heating system using boilers exceeding 15 tons of refrigeration
capacity
B. A direct heating or cooling system for comfort that uses electric heating
elements or products of combustion and has a mechanical refrigeration
capacity of 15 tons or less
C. A commercial refrigeration system regardless of capacity
D. A steam-heating system supplied by a central boiler
Answer: B
,Rationale: Heating Group 3 specifically covers direct comfort heating or
cooling systems using electric heating elements or products of combustion,
with mechanical refrigeration capacity limited to 15 tons or less.
2. A contractor is installing a comfort-cooling system with a mechanical
refrigeration capacity of 12 tons using ducted air distribution. Which
North Carolina heating classification most directly applies?
A. Heating Group 1
B. Heating Group 2
C. Heating Group 3
D. Fuel Piping only
Answer: C
Rationale: A ducted comfort heating or cooling system with mechanical
refrigeration capacity of 15 tons or less falls within Heating Group 3.
3. A proposed comfort-cooling installation has a mechanical refrigeration
capacity of 20 tons. Based strictly on the statutory definition of
Heating Group 3, which conclusion is correct?
A. It automatically qualifies as Heating Group 3 because all air-conditioning
systems are Group 3
B. It qualifies as Group 3 only if it is installed in a single-family dwelling
,C. It exceeds the 15-ton mechanical refrigeration limitation for Group 3
D. It is automatically classified as a fuel-piping system
Answer: C
Rationale: Heating Group 3 is expressly limited to systems having
mechanical refrigeration capacity of 15 tons or less, so a 20-ton system
exceeds that statutory definition.
4. Which organization administers contractor licensing examinations for
plumbing, heating, and fire sprinkler contracting in North Carolina?
A. North Carolina Department of Transportation
B. North Carolina State Board of Examiners of Plumbing, Heating and Fire
Sprinkler Contractors
C. North Carolina Licensing Board for General Contractors only
D. North Carolina Utilities Commission
Answer: B
Rationale: The North Carolina State Board of Examiners of Plumbing,
Heating and Fire Sprinkler Contractors is the regulatory board responsible
for these classifications and examinations.
5. Under North Carolina law, what is the principal purpose of the
licensing and examination system for plumbing and heating
contractors?
, A. To establish uniform equipment prices
B. To protect public health, comfort, and safety by establishing competency
requirements
C. To eliminate all competition among contractors
D. To regulate manufacturers of HVAC equipment
Answer: B
Rationale: The statute authorizes the Board to establish licensing and
examination requirements in order to protect public health, comfort, and
safety.
6. Which two major portions comprise the North Carolina contractor
examination?
A. Mechanical and electrical
B. Estimating and drafting
C. Business and law, and technical
D. Safety and accounting
Answer: C
Rationale: North Carolina law provides that contractor examinations are
conducted in two parts consisting of a business-and-law portion and a
technical portion.
Contractors Board – Heating (HVAC)
Contractor Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2027 Q&A| Instant
Download Pdf.
1. Under North Carolina law, which description most accurately defines a
Heating Group 3 system?
A. A hydronic heating system using boilers exceeding 15 tons of refrigeration
capacity
B. A direct heating or cooling system for comfort that uses electric heating
elements or products of combustion and has a mechanical refrigeration
capacity of 15 tons or less
C. A commercial refrigeration system regardless of capacity
D. A steam-heating system supplied by a central boiler
Answer: B
,Rationale: Heating Group 3 specifically covers direct comfort heating or
cooling systems using electric heating elements or products of combustion,
with mechanical refrigeration capacity limited to 15 tons or less.
2. A contractor is installing a comfort-cooling system with a mechanical
refrigeration capacity of 12 tons using ducted air distribution. Which
North Carolina heating classification most directly applies?
A. Heating Group 1
B. Heating Group 2
C. Heating Group 3
D. Fuel Piping only
Answer: C
Rationale: A ducted comfort heating or cooling system with mechanical
refrigeration capacity of 15 tons or less falls within Heating Group 3.
3. A proposed comfort-cooling installation has a mechanical refrigeration
capacity of 20 tons. Based strictly on the statutory definition of
Heating Group 3, which conclusion is correct?
A. It automatically qualifies as Heating Group 3 because all air-conditioning
systems are Group 3
B. It qualifies as Group 3 only if it is installed in a single-family dwelling
,C. It exceeds the 15-ton mechanical refrigeration limitation for Group 3
D. It is automatically classified as a fuel-piping system
Answer: C
Rationale: Heating Group 3 is expressly limited to systems having
mechanical refrigeration capacity of 15 tons or less, so a 20-ton system
exceeds that statutory definition.
4. Which organization administers contractor licensing examinations for
plumbing, heating, and fire sprinkler contracting in North Carolina?
A. North Carolina Department of Transportation
B. North Carolina State Board of Examiners of Plumbing, Heating and Fire
Sprinkler Contractors
C. North Carolina Licensing Board for General Contractors only
D. North Carolina Utilities Commission
Answer: B
Rationale: The North Carolina State Board of Examiners of Plumbing,
Heating and Fire Sprinkler Contractors is the regulatory board responsible
for these classifications and examinations.
5. Under North Carolina law, what is the principal purpose of the
licensing and examination system for plumbing and heating
contractors?
, A. To establish uniform equipment prices
B. To protect public health, comfort, and safety by establishing competency
requirements
C. To eliminate all competition among contractors
D. To regulate manufacturers of HVAC equipment
Answer: B
Rationale: The statute authorizes the Board to establish licensing and
examination requirements in order to protect public health, comfort, and
safety.
6. Which two major portions comprise the North Carolina contractor
examination?
A. Mechanical and electrical
B. Estimating and drafting
C. Business and law, and technical
D. Safety and accounting
Answer: C
Rationale: North Carolina law provides that contractor examinations are
conducted in two parts consisting of a business-and-law portion and a
technical portion.
