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100+ Free MD HVAC Practice Questions

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Which state board administers HVAC contractor licensing in Maryland?

A
B
C
D
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2026 Statistics

Key Facts: MD HVAC Exam

70%

Passing Score

MD HVACR Board

100 Q / 4 hrs

Master Exam Format

PSI Testing

$400K

Min Combined Insurance

MD HVACR Board

6 Categories

HVACR Work Categories

MD HVACR Board

100 Q

Practice Questions Available

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Sample MD HVAC Practice Questions

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

1Which state board administers HVAC contractor licensing in Maryland?
A.Maryland Board of Master Plumbers
B.Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (HVACR Board)
C.Maryland Home Improvement Commission
D.Maryland Department of General Services
Explanation: The Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (HVACR Board) under the Division of Occupational and Professional Licensing administers all HVACR licensing in the state.
2How many years of experience as a licensed Journeyman are required to qualify for a Maryland Master HVACR license?
A.1 year
B.2 years
C.3 years
D.5 years
Explanation: Maryland requires applicants for a Master HVACR license to have been licensed as a Journeyman and regularly employed providing HVACR services under a licensed Master for at least 3 years, with a minimum of 1,875 hours in the year prior to application.
3What is the passing score required on the Maryland HVACR licensing examination?
A.60%
B.65%
C.70%
D.75%
Explanation: A score of 70% is required to pass the Maryland HVACR licensing examination, whether for the Journeyman, Master, or any other HVACR license classification.
4What are the six categories of HVACR work defined by the Maryland HVACR Board?
A.Heating, Cooling, Plumbing, Electrical, Gas, Solar
B.Air Conditioning, Full Heating, Forced Air Heating, Hydronic Heating, Refrigeration, Ventilation
C.Residential, Commercial, Industrial, Marine, Automotive, Agricultural
D.Installation, Maintenance, Repair, Design, Inspection, Testing
Explanation: Maryland defines six categories of HVACR work: Air Conditioning, Full Heating, Forced Air Heating, Hydronic Heating, Refrigeration, and Ventilation. Licenses may cover one or more of these categories depending on the license type.
5What is the difference between a Maryland Master HVACR license and a Master Restricted license?
A.There is no difference; they are the same license
B.A Master license covers all HVACR work categories, while a Master Restricted license covers one or more specific categories
C.A Master Restricted license is only for residential work
D.A Master Restricted license requires more experience than a Master license
Explanation: A Maryland Master HVACR license authorizes the holder to provide installation and maintenance services in all areas of HVACR work, while a Master Restricted license limits the holder to one or more specific categories (e.g., Air Conditioning only).
6What minimum general liability insurance coverage is required for Maryland HVACR contractors (Master, Master Restricted, or Limited)?
A.$100,000 general liability
B.$200,000 general liability
C.$300,000 general liability and $100,000 property damage liability
D.$500,000 combined single limit
Explanation: Maryland requires all HVACR contractor classifications (except Journeyman) to maintain general liability coverage of at least $300,000 and property damage liability insurance of at least $100,000, with a combined minimum of $400,000.
7What happens if a Maryland Master HVACR contractor allows their insurance to expire?
A.They receive a 60-day grace period to renew
B.They are guilty of a misdemeanor, subject to a fine up to $1,000 or imprisonment up to 6 months, or both
C.Their license is automatically suspended but they can continue existing projects
D.They must pay a $500 reinstatement fee
Explanation: Under Maryland law, any Master, Master Restricted, or Limited HVACR contractor who enters into contracts to provide HVACR services while their insurance has expired is guilty of a misdemeanor. If convicted, they face a fine up to $1,000, imprisonment up to 6 months, or both.
8How many questions are on the Maryland Master HVACR licensing exam?
A.50 questions
B.75 questions
C.100 questions
D.150 questions
Explanation: The Maryland Master HVACR licensing exam consists of 100 questions with a 240-minute (4-hour) time limit. It covers electrical, motors and controls, piping, refrigeration and air conditioning, heating systems, air distribution, and safety.
9Which organization provides all testing for the Maryland HVACR Board?
A.Prometric
B.Pearson VUE
C.PSI Examination Services
D.The HVACR Board administers its own exams
Explanation: PSI Examination Services provides all testing for the Maryland HVACR Board. Candidates must register with PSI and schedule their exam through PSI's testing centers.
10What is the minimum Apprentice experience requirement for a Maryland Journeyman HVACR license?
A.2 years and 4,000 hours
B.3 years and 5,000 hours
C.4 years and 6,000 hours
D.5 years and 8,000 hours
Explanation: Maryland requires Journeyman HVACR applicants to have been licensed as an Apprentice for at least 4 years and completed at least 6,000 hours of training in HVACR services under the direction and control of a licensed contractor.

About the MD HVAC Exam

The Maryland HVACR licensing exam tests knowledge of electrical systems, motors and controls, piping, refrigeration, air conditioning, heating systems, air distribution, and safety. License types include Master, Master Restricted, Limited, Journeyman, and Journeyman Restricted across six HVACR work categories.

Questions

100 scored questions

Time Limit

4 hours

Passing Score

70%

Exam Fee

$150 (exam) + $20-$75 (license) (Maryland Board of HVACR Contractors (PSI testing))

MD HVAC Exam Content Outline

25%

State Laws & Licensing

Maryland HVACR Board regulations, license types (Master, Restricted, Limited, Journeyman), insurance, and permit requirements

25%

Heating Systems

Gas furnaces, boilers, hydronic heating, heat pumps, combustion analysis, and venting

20%

Refrigeration & Air Conditioning

Refrigeration cycle, charging, recovery, compressors, metering devices, and diagnostics

15%

Air Distribution & Ductwork

Duct design, zoning, airflow measurement, static pressure, and balancing

15%

Safety & Business

OSHA, gas safety, electrical safety, business management, contracts, and insurance

How to Pass the MD HVAC Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 100 questions
  • Time limit: 4 hours
  • Exam fee: $150 (exam) + $20-$75 (license)

Keys to Passing

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

MD HVAC Study Tips from Top Performers

1Master the six HVACR work categories and understand which license types authorize each category
2Study the sequence of operations for gas furnaces and boilers — this is heavily tested on the Maryland exam
3Review hydronic heating system components including expansion tanks, air separators, and zone valves
4Know Maryland-specific insurance requirements: $300,000 GL + $100,000 PD with the Board as certificate holder

Frequently Asked Questions

What license types does Maryland offer for HVACR work?

Maryland offers five license types: Master (all categories), Master Restricted (specific categories), Limited (maintenance and repair only), Journeyman (work under a contractor), and Journeyman Restricted (specific categories under a contractor).

What are the six HVACR work categories in Maryland?

Air Conditioning, Full Heating, Forced Air Heating, Hydronic Heating, Refrigeration, and Ventilation. Your license specifies which categories you are authorized to work in.

How do I qualify for a Maryland Master HVACR license?

You must have been a licensed Journeyman for at least 3 years, worked a minimum of 1,875 hours in the year prior to application, and pass the PSI Master exam (100 questions, 240 minutes, 70% passing score).

What insurance is required for Maryland HVACR contractors?

All contractor-level licenses require $300,000 general liability and $100,000 property damage liability (combined minimum $400,000). The HVACR Board must be named as certificate holder.