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100+ Free WA HVAC Contractor Practice Questions

Pass your Washington 06A HVAC/R Specialty Electrician License Exam exam on the first try — instant access, no signup required.

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ArticleFree HVAC Contractor Practice Test by State 2026: 3,400+ Questions24 min read
2026 Statistics

Key Facts: WA HVAC Contractor Exam

4,000

Hours Experience

Washington L&I

48 hrs

Classroom Required

Washington L&I

$65

Exam Fee

PSI

$15K

Surety Bond

Washington L&I

$250K

Liability Insurance

Combined single limit

$141

Registration Fee

Washington L&I

Sample WA HVAC Contractor Practice Questions

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

1Which Washington state agency oversees HVAC contractor licensing and registration?
A.Washington Department of Commerce
B.Washington Department of Labor and Industries (L&I)
C.Washington State Licensing Board
D.Washington Department of Health
Explanation: The Washington Department of Labor and Industries (L&I) oversees HVAC contractor registration, specialty electrician licensing (06A HVAC/R), and all construction contractor licensing in the state.
2What is the Washington HVAC/Refrigeration specialty electrician license classification?
A.04 Industrial
B.06A HVAC/R
C.07 Residential
D.10 General
Explanation: The 06A classification is the HVAC/Refrigeration System specialty electrician license in Washington, required for installing, maintaining, and repairing HVAC/R electrical systems.
3How many hours of supervised work experience are required for the Washington 06A HVAC/R specialty license?
A.2,000 hours
B.3,000 hours
C.4,000 hours
D.6,000 hours
Explanation: Washington requires at least 4,000 hours (approximately 2 years) of supervised work experience in HVAC/R as an electrical trainee under the supervision of a certified electrician to qualify for the 06A license.
4How many hours of basic classroom instruction are required for the Washington 06A HVAC/R license?
A.24 hours
B.36 hours
C.48 hours
D.60 hours
Explanation: In addition to the 4,000 hours of supervised work experience, Washington requires 48 hours of basic classroom instruction for the 06A HVAC/R specialty license.
5What exams must be passed for the Washington 06A HVAC/R license?
A.Only a trade exam
B.The 06A HVAC-R Restricted NEC and Theory Exam, and the 06A HVAC-R WA Laws and Rules Exam
C.Only a business and law exam
D.A national certification exam only
Explanation: Washington 06A applicants must pass two exams: the 06A HVAC-R Restricted NEC and Theory Exam (covering electrical code and HVAC theory) and the 06A HVAC-R WA Laws and Rules Exam (covering Washington-specific regulations).
6What is the exam fee for the Washington 06A HVAC/R specialty electrician exam?
A.$35
B.$50
C.$65
D.$100
Explanation: The exam fee for the Washington 06A HVAC/R specialty electrician exam is $65, paid to PSI (the exam administrator) when scheduling the exam.
7What is the application fee to L&I for the Washington specialty electrician examination?
A.$50.00
B.$75.80
C.$107.60
D.$150.00
Explanation: The application fee to the Washington Department of Labor and Industries for the specialty electrician examination is $107.60.
8What surety bond amount is required for HVAC specialty contractors registering with Washington L&I?
A.$6,000
B.$12,000
C.$15,000
D.$25,000
Explanation: Washington requires a $15,000 surety bond (or assignment of savings) for HVAC specialty contractors as part of the contractor registration requirements with L&I.
9What is the minimum liability insurance requirement for Washington HVAC contractors?
A.$100,000 combined single limit
B.$200,000 public liability and $50,000 property damage, or $250,000 combined single limit
C.$500,000 combined single limit
D.$1,000,000 combined single limit
Explanation: Washington requires HVAC contractors to maintain general liability insurance with coverage of $200,000 in public liability and $50,000 property damage, or $250,000 combined single limit, with L&I listed as certificate holder.
10Who must be listed as the certificate holder on a Washington HVAC contractor's liability insurance?
A.The contractor's bank
B.Washington L&I (Department of Labor and Industries)
C.Each individual client
D.The surety bond company
Explanation: Washington requires L&I to be listed as the certificate holder on the contractor's liability insurance policy, using the contractor's exact business name.

About the WA HVAC Contractor Exam

The Washington 06A HVAC/R specialty exam covers restricted NEC theory, Washington laws and rules, HVAC/refrigeration trade knowledge, and safety regulations for the HVAC/R specialty electrician license.

Questions

100 scored questions

Time Limit

3 hours

Passing Score

70%

Exam Fee

$65 (exam) + $107.60 (application) (Washington L&I / PSI)

WA HVAC Contractor Exam Content Outline

25%

State Laws & Licensing

WA L&I registration, 06A requirements, 4,000 hours experience, bond/insurance, and contractor advertising

25%

Trade Knowledge

Refrigerant handling, load calculations, ductwork design, heat pumps, and marine climate considerations

25%

Mechanical Codes & Energy

IMC/NEC compliance, IECC energy efficiency, CETA clean energy, seismic requirements, and permits

25%

Safety & Business

OSHA safety, EPA regulations, prevailing wage, contract law, and business operations

How to Pass the WA HVAC Contractor Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 100 questions
  • Time limit: 3 hours
  • Exam fee: $65 (exam) + $107.60 (application)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

WA HVAC Contractor Study Tips from Top Performers

1Master Washington L&I 06A requirements: 4,000 hours supervised experience, 48 hours classroom, and two separate exams
2Study Washington's marine climate impact on HVAC design: extended heating season, moisture management, and mold prevention
3Learn seismic restraint requirements for HVAC equipment — Washington is a high seismic zone
4Review Washington CETA clean energy goals and their impact on heat pump adoption and building electrification
5Understand RCW 18.27 contractor registration, $15K bond, $250K liability insurance, and advertising requirements

Frequently Asked Questions

What is the 06A HVAC/R license?

The 06A is a specialty electrician license from Washington L&I authorizing installation, maintenance, and repair of HVAC/R electrical systems. It requires 4,000 hours supervised experience and 48 hours classroom instruction.

What exams are required?

Two exams: the 06A HVAC-R Restricted NEC and Theory Exam, and the 06A HVAC-R WA Laws and Rules Exam. Both administered by PSI.

What bond and insurance are needed?

$15,000 surety bond and $250,000 combined single limit liability insurance (or $200K public liability + $50K property damage) with L&I as certificate holder.

What is the contractor registration fee?

The registration application fee is $141.10, plus the $107.60 exam application fee to L&I and $65 exam fee to PSI.