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Key Facts: WV HVAC Contractor Exam

80 Q

Official Exam Questions

Prov WVCLB CIB 2026.05.07

70%

Passing Score

Prov WVCLB CIB 2026.05.07

3 hr

Time Allowed

Prov WVCLB CIB 2026.05.07

USD 59.95

Prov Exam Fee

Prov WVCLB CIB 2026.05.07

Open Book

Book Policy

Prov WVCLB CIB 2026.05.07

West Virginia Heating, Ventilating and Cooling Contractor Examination is the official Board/Prov open-book exam: 80 questions, 70%, 3 hours, USD 59.95 (bulletin dated 2026.05.07). Official delivery is English.

Sample WV HVAC Contractor Practice Questions

Try these sample questions to review concepts for the WV HVAC Contractor exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A West Virginia Heating, Ventilating and Cooling Contractor license, as defined in the Prov WVCLB bulletin, authorizes contracting to install, erect, repair, service, or alter which systems?
A.Only residential window air conditioners under 1 ton
B.Heating, ventilating, and air-conditioning equipment or systems for residential and commercial structures, and work incidental to that installation or repair
C.Only Division of Labor HVAC Technician service work on existing systems
D.Plumbing drain, waste, and vent systems exclusive of HVAC
Explanation: The official bulletin defines this Board classification as contracting to install, erect, repair, service, or alter heating, ventilating, and air-conditioning equipment or systems to heat, cool, or ventilate residential and commercial structures, plus incidental work. It is a contractor classification exam, not the Division of Labor HVAC Technician certification.
2One ton of refrigeration capacity is equal to which heat-removal rate?
A.8,000 Btu/h
B.10,000 Btu/h
C.12,000 Btu/h
D.15,000 Btu/h
Explanation: One ton of refrigeration is 12,000 Btu/h, the heat required to melt one ton of ice in 24 hours. A 3-ton air conditioner is therefore nominally 36,000 Btu/h.
3In the vapor-compression refrigeration cycle, heat is rejected from the refrigerant in which component?
A.The evaporator
B.The metering device
C.The compressor crankcase heater
D.The condenser
Explanation: High-pressure, high-temperature refrigerant vapor leaves the compressor and rejects heat in the condenser as it condenses to a liquid. The evaporator absorbs heat from the conditioned space.
4Superheat is best defined as:
A.The temperature of liquid refrigerant below its condensing saturation temperature
B.The temperature of refrigerant vapor above its evaporating saturation temperature
C.The difference between indoor wet-bulb and dry-bulb temperatures
D.The outdoor design dry-bulb minus indoor design dry-bulb
Explanation: Superheat is how many degrees the suction vapor is warmer than the saturation temperature corresponding to evaporator pressure. It confirms that liquid has boiled off before the compressor and is the usual charging target for fixed-orifice systems.
5Subcooling is best defined as:
A.The temperature of liquid refrigerant below its condensing saturation temperature
B.The temperature of suction vapor above evaporator saturation temperature
C.The indoor-outdoor temperature difference used in Manual J
D.The temperature drop across a cooling coil only
Explanation: Subcooling is how many degrees the liquid line is cooler than the saturation temperature at condenser pressure. Adequate subcooling shows a solid liquid column at the metering device and is the usual charging target for TXV systems.
6Sensible heat is heat that:
A.Changes the moisture content of air without changing dry-bulb temperature
B.Changes dry-bulb temperature without a change of state
C.Is released only when refrigerant condenses
D.Exists only in hydronic systems
Explanation: Sensible heat changes the measurable dry-bulb temperature. Latent heat changes moisture content or causes a change of state at constant temperature. Cooling coils remove both sensible and latent heat.
7Using Qs = 1.08 × CFM × ΔT, what supply airflow is required to deliver 32,400 Btu/h of sensible cooling with a 20°F air-side temperature drop?
A.1,000 CFM
B.1,200 CFM
C.1,500 CFM
D.1,800 CFM
Explanation: CFM = Qs / (1.08 × ΔT) = 32,400 / (1.08 × 20) = 32,400 / 21.6 = 1,500 CFM. The 1.08 factor is 0.075 lb/ft³ × 0.24 Btu/lb·°F × 60 min/h at standard air.
8Wet-bulb temperature is the better single-air-property indicator of which quantity?
A.Duct velocity
B.Refrigerant subcooling
C.Total heat content (enthalpy) of moist air
D.Manifold gas pressure
Explanation: At a given dry-bulb, a higher wet-bulb means more moisture and higher enthalpy. Wet-bulb is therefore the practical field indicator of total heat in the air and is used with sling psychrometers and in cooling-tower and evaporator entering-air ratings.
9Condensation forms on a cold supply duct when the duct surface temperature is:
A.Above the dew-point temperature of the surrounding air
B.Equal to the refrigerant saturation temperature only
C.Below the dew-point temperature of the surrounding air
D.Above the indoor dry-bulb temperature
Explanation: Dew point is the temperature at which moist air becomes saturated. When a surface is cooler than the surrounding air’s dew point, water vapor condenses on that surface. That is why cooling ducts in unconditioned spaces need a continuous vapor-retarder insulation jacket.
10Heat flow through a wall by conduction is calculated with which relationship?
A.Q = U × A × ΔT
B.Q = 1.08 × CFM × ΔT only, with no area term
C.Q = 0.68 × CFM × grains difference
D.Q = 500 × GPM × ΔT
Explanation: Conductive heat transfer through an opaque assembly is Q = U × A × ΔT, where U is 1/R. Manual J heat transfer multipliers are this U × ΔT product applied to net surface area.

About the WV HVAC Contractor Exam

The West Virginia Heating, Ventilating and Cooling Contractor Examination is the official Board trade examination administered by Prov. The official exam has 80 questions. Passing is 70% in 3 hours. The examination is open book. Prov lists USD 59.95 per attempt (West Virginia Contractor Licensing Board Candidate Information Bulletin dated 2026.05.07). The classification covers contracting to install, erect, repair, service, or alter heating, ventilating, and air-conditioning equipment or systems. Candidates must also pass the Contractor Licensing Act examination. This contractor classification is not the Division of Labor HVAC Technician certification. This bank is an English-language MCQ study adaptation. It does not replace required trade experience, Board approval, or the official examination.

Exam sponsor: Prov, Inc. (for the West Virginia Contractor Licensing Board). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Open-book computer-based or paper-and-pencil multiple-choice. Official references: HVAC Basics for Contractors 3rd Edition, International Mechanical Code 2021, and SMACNA Residential Comfort System Installation Standards Manual (2016). Remote Examroom testing is available.

Time Limit

3 hours

Passing Score

70%

Exam / Certification Fees

USD 59.95

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

38%

General Knowledge

General Knowledge (30 official items)

8%

Load Calculations

Load Calculations (6 official items)

5%

Code Requirements

Code Requirements (4 official items)

13%

Controls

Controls (10 official items)

13%

Ducting and Insulation

Ducting, Insulation (10 official items)

8%

Piping

Piping (6 official items)

5%

Safety-OSHA

Safety - OSHA (4 official items)

13%

Equipment

Equipment (10 official items)

Preparing for the WV HVAC Contractor Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: Open-book computer-based or paper-and-pencil multiple-choice. Official references: HVAC Basics for Contractors 3rd Edition, International Mechanical Code 2021, and SMACNA Residential Comfort System Installation Standards Manual (2016). Remote Examroom testing is available.
  • Time limit: 3 hours
  • Exam / certification fees: USD 59.95 Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

WV HVAC Contractor: Suggested Study Strategy

1Distribute study time to the official Prov HVAC content outline (bulletin dated 2026.05.07)
2Tab the 2021 IMC listed in the bulletin; 70% of official items come from that code
3Moveable tabs and Post-it notes are prohibited in the Prov center
4This bank is an English-language MCQ study aid, not an official Prov form

Frequently Asked Questions

How many questions are on the West Virginia Heating, Ventilating and Cooling Contractor Examination?

The official Prov examination has 80 questions. Passing is 70% within 3 hours (West Virginia Contractor Licensing Board Candidate Information Bulletin dated 2026.05.07).

How much does the West Virginia HVAC contractor exam cost?

Prov lists USD 59.95 per attempt, including retakes. The Board charges a separate USD 90 annual contractor license fee under 28CSR2 §28-2-5.5 (effective May 4, 2026).

Is this the same as the West Virginia HVAC Technician exam?

No. This is the Contractor Licensing Board heating, ventilating, and cooling contractor classification. HVAC Technician certifications are a separate Division of Labor program.

Do I also need the Contractor Licensing Act exam?

Yes. The Board requires every contractor license applicant to pass the Contractor Licensing Act examination in addition to any applicable trade classification examination.