100+ Free MA HVAC Practice Questions

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Which Massachusetts state agency is responsible for issuing Refrigeration Technician and Contractor licenses?

Massachusetts Department of Labor Standards

Division of Professional Licensure, Office of Public Safety and Inspections (OPSI)

Massachusetts Board of Building Regulations and Standards

Massachusetts Department of Energy Resources

to track

2026 Statistics

Key Facts: MA HVAC Exam

70%

Passing Score

528 CMR

>10 Tons

License Threshold

MA OPSI

3 Tiers

Apprentice, Journeyman, Master

528 CMR 11.03

100 Q

Practice Questions Available

OpenExamPrep

EPA 608

Universal Certification Required

MA OPSI

Sample MA HVAC Practice Questions

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1Which Massachusetts state agency is responsible for issuing Refrigeration Technician and Contractor licenses?

A.Massachusetts Department of Labor Standards

B.Division of Professional Licensure, Office of Public Safety and Inspections (OPSI)

C.Massachusetts Board of Building Regulations and Standards

D.Massachusetts Department of Energy Resources

Explanation: The Massachusetts Division of Professional Licensure, Office of Public Safety and Inspections (OPSI) is responsible for administering refrigeration licensing examinations and issuing Refrigeration Technician and Contractor licenses under 528 CMR 11.00.

2Under 528 CMR 11.03, what is the minimum work experience required for a Journeyman Refrigeration Technician license in Massachusetts (for applications before November 9, 2026)?

A.1,000 hours as a Refrigeration Apprentice

B.2,000 hours as a Refrigeration Apprentice

C.4,000 hours as a Refrigeration Apprentice

D.6,000 hours as a Refrigeration Apprentice

Explanation: Under 528 CMR 11.03, applicants for a Journeyman Refrigeration Technician license (applications before November 9, 2026) must have completed 2,000 actual work hours as a licensed Refrigeration Apprentice, along with EPA Section 608 Universal certification.

3What passing score is required on the Massachusetts Refrigeration Technician licensing examination?

A.60% or higher

B.65% or higher

C.70% or higher

D.75% or higher

Explanation: Candidates must correctly answer 70% or more of the examination questions to qualify for a Massachusetts Refrigeration Technician or Contractor license.

4What type of systems does a Massachusetts Refrigeration license cover?

A.All heating and cooling systems regardless of capacity

B.Refrigeration systems with capacity of more than 10 tons

C.Only commercial walk-in coolers and freezers

D.Residential air conditioning systems under 5 tons

Explanation: Massachusetts issues refrigeration licenses specifically for work on refrigeration systems with capacity of more than 10 tons. Systems of 10 tons or less do not require this state-level license.

5What EPA certification must a Massachusetts Refrigeration Technician applicant possess?

A.EPA Section 608 Type I certification

B.EPA Section 608 Type II certification

C.EPA Section 608 Universal certification

D.EPA Section 609 Motor Vehicle certification

Explanation: Massachusetts requires all Refrigeration Technician applicants to hold EPA Section 608 Universal certification, which covers all types of equipment (small appliances, high-pressure, and low-pressure systems).

6For applications dated on or after November 9, 2026, how many clock hours of work experience as a licensed Refrigeration Apprentice are required for the Journeyman exam in Massachusetts?

A.2,000 clock hours

B.4,000 clock hours

C.6,000 clock hours

D.8,000 clock hours

Explanation: Beginning November 9, 2026, Massachusetts will increase the Journeyman Refrigeration Technician experience requirement from 2,000 to 6,000 clock hours as a licensed Refrigeration Apprentice, along with completing a 450-hour approved course of study.

7How many hours of Bureau-approved education are required for a Master Refrigeration Technician/Contractor license in Massachusetts (current requirements)?

A.50 hours

B.100 hours

C.250 hours

D.450 hours

Explanation: Under current Massachusetts requirements, applicants for a Master Refrigeration Technician/Contractor license must complete 100 hours of Bureau-approved education in addition to 2,000 hours of work experience as a Journeyman.

8What is the primary purpose of the refrigeration cycle's expansion device?

A.To increase refrigerant pressure before entering the condenser

B.To reduce refrigerant pressure and temperature before entering the evaporator

C.To compress the refrigerant vapor into a high-pressure gas

D.To remove heat from the refrigerant before it enters the compressor

Explanation: The expansion device (such as a TXV or capillary tube) reduces the high-pressure liquid refrigerant to a low-pressure, low-temperature mixture before it enters the evaporator. This pressure drop allows the refrigerant to absorb heat efficiently in the evaporator.

9When recovering refrigerant from a system with a charge of more than 200 pounds, what is the EPA-required recovery efficiency for high-pressure refrigerants?

A.80% of the charge

B.90% of the charge

C.0 psig vacuum

D.The recovery level depends on the type of equipment used

Explanation: For high-pressure refrigerant systems containing more than 200 pounds of charge, the EPA requires recovery to 0 psig (0 pounds per square inch gauge) before the system can be opened for service or disposal.

10According to Massachusetts building code, what is the minimum required clearance from combustible materials for a single-wall metal vent connector?

A.1 inch

B.6 inches

C.12 inches

D.18 inches

Explanation: Single-wall metal vent connectors require a minimum clearance of 6 inches from combustible materials per the Massachusetts building and mechanical codes. This clearance prevents heat transfer that could ignite nearby combustible materials.

About the MA HVAC Exam

The Massachusetts Refrigeration Technician/Contractor licensing exam tests knowledge of 528 CMR regulations, refrigeration systems over 10 tons, EPA Section 608 compliance, mechanical codes, and safe refrigerant handling practices. Three license tiers exist: Apprentice, Journeyman, and Master/Contractor.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

Varies by license type (Massachusetts Division of Professional Licensure, OPSI)

MA HVAC Exam Content Outline

25%

State Laws & Licensing

528 CMR regulations, license tiers (Apprentice, Journeyman, Master), OPSI requirements, and permit procedures

30%

Refrigeration & Trade Knowledge

Refrigeration cycle, compressors, metering devices, piping, charging, evacuation, and system diagnostics

15%

Safety & EPA Regulations

EPA Section 608, refrigerant recovery, OSHA requirements, and workplace safety

15%

Mechanical Codes

IMC compliance, duct construction, ventilation rates, fire dampers, and energy codes

15%

Business Management

Insurance, contracts, estimating, lien law, consumer protection, and change orders

How to Pass the MA HVAC Exam

What You Need to Know

Passing score: 70%
Exam length: 100 questions
Time limit: 2 hours
Exam fee: Varies by license type

Keys to Passing

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

MA HVAC Study Tips from Top Performers

1Master 528 CMR 11.03 requirements for each license tier, especially the new November 2026 changes for Journeyman applicants

2Study the complete refrigeration cycle — know the function of every component and how to diagnose common problems using superheat and subcooling

3Review EPA Section 608 regulations thoroughly, including recovery requirements, leak rate thresholds, and recordkeeping

4Understand Massachusetts-specific energy codes, including the Stretch Energy Code adopted by many municipalities

Frequently Asked Questions

What types of refrigeration licenses does Massachusetts issue?

Massachusetts issues three refrigeration license levels: Apprentice (entry-level, requires DAS registration), Journeyman Technician (requires 2,000 hours experience and EPA 608 Universal), and Master Technician/Contractor (requires 2,000 hours as Journeyman plus 100 hours education).

What systems require a Massachusetts Refrigeration license?

A state Refrigeration license is required for work on refrigeration systems with capacity of more than 10 tons. Systems of 10 tons or less do not require this specific state license.

What changes are coming to Massachusetts refrigeration licensing in November 2026?

Effective November 9, 2026, Journeyman applicants will need 6,000 clock hours (up from 2,000) as a licensed Apprentice and must complete a 450-hour Bureau-approved education course, significantly increasing entry requirements.

What is the passing score for the Massachusetts refrigeration exam?

A score of 70% or higher is required to pass the written examination. Candidates are notified by mail 4-8 weeks after application, and exams are scheduled first-come, first-served.