100+ Free MS HVAC Practice Questions

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Which Mississippi state agency administers HVAC contractor licensing?

Mississippi Department of Health

Mississippi State Board of Contractors (MSBOC)

Mississippi Department of Environmental Quality

Mississippi Real Estate Commission

to track

2026 Statistics

Key Facts: MS HVAC Exam

70%

Passing Score (Both Exams)

MSBOC

2 Exams

Trade + Business/Law

MSBOC

$10K / $50K

License Thresholds (Res/Comm)

MSBOC

$20K

Min Net Worth (Specialty)

MSBOC

100 Q

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Sample MS HVAC Practice Questions

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

1Which Mississippi state agency administers HVAC contractor licensing?

A.Mississippi Department of Health

B.Mississippi State Board of Contractors (MSBOC)

C.Mississippi Department of Environmental Quality

D.Mississippi Real Estate Commission

Explanation: The Mississippi State Board of Contractors (MSBOC) administers all contractor licensing in the state, including HVAC contractor licenses under the Mechanical classification with its 16 specialty classifications.

2At what project value threshold does Mississippi require an HVAC contractor license for residential work?

A.$5,000

B.$10,000

C.$25,000

D.$50,000

Explanation: Mississippi requires an HVAC contractor license for residential electrical, plumbing, or HVAC work exceeding $10,000. Below this threshold, a state license is not required, but local requirements may apply.

3What is the project value threshold for requiring a commercial HVAC contractor license in Mississippi?

A.$10,000

B.$25,000

C.$50,000

D.$100,000

Explanation: Mississippi requires a commercial contractor's license for HVAC work on commercial projects exceeding $50,000. This is a higher threshold than the $10,000 residential requirement.

4How many exams must a Mississippi HVAC contractor applicant pass?

A.One trade exam only

B.Two exams: a trade exam and a business and law exam

C.Three separate exams

D.No exams are required

Explanation: Mississippi requires HVAC contractor applicants to pass two exams: an HVAC trade exam (80 questions, 4 hours, 70% passing) and a separate business and law exam (50 questions, 2 hours, 70% passing).

5What is the passing score required on both Mississippi HVAC contractor exams?

A.60%

B.65%

C.70%

D.75%

Explanation: Both the Mississippi HVAC trade exam and the business and law exam require a minimum passing score of 70%.

6How many questions are on the Mississippi HVAC trade exam?

A.50 questions

B.75 questions

C.80 questions

D.100 questions

Explanation: The Mississippi HVAC trade exam consists of 80 questions with a 4-hour time limit. A score of 70% (56 correct answers) is required to pass.

7What minimum net worth must a Mississippi HVAC contractor demonstrate for the specialty classification?

A.$10,000

B.$20,000

C.$50,000

D.$100,000

Explanation: Mississippi requires HVAC specialty contractors to demonstrate a net worth of at least $20,000 through a CPA-reviewed financial statement. The major Mechanical Contractor classification requires $50,000 net worth.

8What minimum general liability insurance coverage is required for a Mississippi HVAC contractor?

A.$100,000 per incident

B.$300,000 per incident and $600,000 aggregate

C.$500,000 per incident

D.$1,000,000 per incident

Explanation: Mississippi requires HVAC contractors to carry general liability insurance with a minimum of $300,000 coverage for each incident and $600,000 in total aggregate coverage.

9What is the application fee for a Mississippi contractor license including the major classification and one specialty?

A.$200

B.$300

C.$400

D.$500

Explanation: The Mississippi contractor license application fee is $400, which includes the major classification and one specialty. Each additional specialty classification costs $100 more.

10How many specialty classifications fall under the Mississippi Mechanical Contractor license?

A.8

B.12

C.16

D.20

Explanation: Mississippi has 16 specialty classifications under the Mechanical Contractor license, including HVAC which covers heating, ventilating, air conditioning, fuel gas systems, ductwork, and related equipment.

About the MS HVAC Exam

The Mississippi HVAC contractor license requires passing two exams: an 80-question HVAC trade exam and a 50-question business and law exam. The HVAC specialty covers heating, cooling, ventilation, fuel gas systems, ductwork, and related work. Residential projects over $10,000 and commercial projects over $50,000 require licensure.

Questions

130 scored questions

Time Limit

6 hours total (4 hr trade + 2 hr business/law)

Passing Score

70% on each exam

Exam Fee

$120 (trade) + business/law fee + $400 application (Mississippi State Board of Contractors (MSBOC))

MS HVAC Exam Content Outline

25%

State Laws & Licensing

MSBOC regulations, license thresholds ($10K residential/$50K commercial), insurance, net worth, and application requirements

25%

HVAC Trade Knowledge

Cooling systems, heat pumps, refrigerant handling, dehumidification, and equipment diagnostics

20%

Ductwork & Air Distribution

Duct design, insulation, sealing, moisture prevention, and Manual D procedures

15%

Business & Law

Contract law, lien rights, insurance requirements, financial management, and consumer protection

15%

Safety & Codes

OSHA, gas safety, EPA Section 608, mechanical codes, and heat illness prevention

How to Pass the MS HVAC Exam

What You Need to Know

Passing score: 70% on each exam
Exam length: 130 questions
Time limit: 6 hours total (4 hr trade + 2 hr business/law)
Exam fee: $120 (trade) + business/law fee + $400 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

MS HVAC Study Tips from Top Performers

1Study both the HVAC trade content AND Mississippi business/law — you must pass two separate exams

2Focus on humidity control and dehumidification concepts, as Mississippi's humid climate makes this critical

3Know the licensing thresholds: $10,000 residential, $50,000 commercial

4Review the net worth and insurance requirements: $20K net worth (specialty), $300K/$600K general liability

Frequently Asked Questions

When do I need a Mississippi HVAC contractor license?

A license is required for residential HVAC work over $10,000 and commercial HVAC work over $50,000. Below these thresholds, check with local building officials for their requirements.

What exams are required for the Mississippi HVAC license?

Two exams: an HVAC trade exam (80 questions, 4 hours, $120) and a business and law exam (50 questions, 2 hours). Both require a 70% passing score.

What financial requirements must I meet?

You must submit a CPA-reviewed financial statement showing a minimum net worth of $20,000 (specialty) or $50,000 (major classification), plus $300,000/$600,000 general liability insurance.

How much does the Mississippi HVAC license cost total?

The application fee is $400 (includes one specialty), plus $120 for the trade exam and the business/law exam fee. Additional specialties cost $100 each.