100+ Free SC HVAC Contractor Practice Questions

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Which South Carolina state agency oversees HVAC contractor licensing for commercial projects?

SC Department of Consumer Affairs

SC Contractor's Licensing Board (CLB) under the Department of Labor, Licensing and Regulation

SC Building Code Council

SC Department of Commerce

to track

2026 Statistics

Key Facts: SC HVAC Contractor Exam

$5,000

Commercial Threshold

SC CLB

Trade Exam Questions

PSI

65%

Passing Score

52/80 correct

2 yrs

Experience Required

Within past 5 years

$10K

Surety Bond

SC RBC

$220

License Fee

SC RBC

Sample SC HVAC Contractor Practice Questions

Try these sample questions to test your SC 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 South Carolina state agency oversees HVAC contractor licensing for commercial projects?

A.SC Department of Consumer Affairs

B.SC Contractor's Licensing Board (CLB) under the Department of Labor, Licensing and Regulation

C.SC Building Code Council

D.SC Department of Commerce

Explanation: The South Carolina Contractor's Licensing Board (CLB), operating under the Department of Labor, Licensing and Regulation (LLR), oversees licensing for commercial HVAC contractors working on projects over $5,000.

2What is the dollar threshold that triggers the requirement for a South Carolina commercial HVAC contractor license?

A.$1,000

B.$5,000

C.$10,000

D.$25,000

Explanation: South Carolina requires a contractor's license for commercial and industrial HVAC projects valued at more than $5,000. Projects below this threshold may not require a state contractor license, though local permits and licensing may still apply.

3Which South Carolina agency regulates residential HVAC contractors?

A.SC Contractor's Licensing Board

B.SC Residential Builders Commission (RBC)

C.SC Department of Insurance

D.SC Fire Marshal's Office

Explanation: The South Carolina Residential Builders Commission (RBC) oversees licensing for residential HVAC contractors. This is separate from the Contractor's Licensing Board, which handles commercial contractors. Residential work over $500 requires registration with the RBC.

4How many years of work experience does South Carolina require for a mechanical contractor license application?

A.1 year

B.2 years within the past 5 years

C.3 years

D.5 years

Explanation: South Carolina requires a minimum of 2 years of work experience performed within the past 5 years in the requested license classification or subclassification. This experience must be documented and verified by the applicant's employer(s).

5What examinations does South Carolina require for a commercial HVAC contractor license?

A.Only a trade exam

B.A trade exam and a business and law exam

C.Only a business and law exam

D.No exams are required

Explanation: South Carolina requires passing both a trade exam (covering HVAC technical knowledge) and a business and law exam (covering SC contractor law, business practices, and project management) for commercial HVAC contractor licensing.

6What is the surety bond amount required for a South Carolina residential HVAC contractor?

A.$5,000

B.$10,000

C.$15,000

D.$25,000

Explanation: South Carolina requires a $10,000 surety bond for residential HVAC contractors when the total cost of construction exceeds $5,000. This bond protects homeowners in case the contractor fails to complete work or violates regulations.

7Who administers the South Carolina HVAC contractor licensing examinations?

A.The SC Contractor's Licensing Board directly

B.PSI Services

C.Prometric

D.Pearson VUE

Explanation: PSI Services administers the South Carolina HVAC contractor licensing examinations on behalf of both the Contractor's Licensing Board and the Residential Builders Commission. Candidates schedule exams through PSI's website or phone system.

8How many questions are on the South Carolina Residential HVAC trade exam?

A.50 questions

B.80 questions

C.100 questions

D.120 questions

Explanation: The South Carolina Residential HVAC trade exam administered by PSI contains 80 questions with a 4-hour time limit. A score of 52 correct answers (65%) is required to pass.

9Are the South Carolina contractor licensing exams open book?

A.No, all exams are closed book

B.Yes, both the trade and business/law exams are open book

C.Only the business/law exam is open book

D.Only electronic references are allowed

Explanation: South Carolina contractor licensing exams are open book. Candidates may bring reference materials that can be tabbed, highlighted, and used during the test. This includes code books, trade references, and study guides.

10What is the application fee for a South Carolina contractor license exam?

A.$50

B.$100

C.$150

D.$200

Explanation: The application fee for a South Carolina contractor license examination is $100. This is in addition to the $75 exam fee charged by PSI for each exam taken.

About the SC HVAC Contractor Exam

South Carolina HVAC contractor licensing exam covering state regulations for projects over $5,000, trade knowledge for humid subtropical climate including dehumidification and mold prevention, mechanical codes, and business law.

Questions

80 scored questions

Time Limit

4 hours

Passing Score

65% (52/80)

Exam Fee

$75 per exam + $100 application fee (SC Contractor's Licensing Board / PSI)

SC HVAC Contractor Exam Content Outline

25%

State Laws & Regulations

CLB and RBC licensing, $5K threshold, PQP requirements, bonding, and SC contractor law

30%

Trade Knowledge

Load calculations for humid climate, dehumidification, refrigerant handling, and system design

20%

Mechanical Codes

IMC adoption, ductwork requirements, venting, clearances, and SC energy code (IECC)

15%

Safety Regulations

EPA 608, OSHA, fall protection, CO detection, and refrigerant safety

10%

Business Management

Contracts, change orders, advertising, lien rights, and warranty handling

How to Pass the SC HVAC Contractor Exam

What You Need to Know

Passing score: 65% (52/80)
Exam length: 80 questions
Time limit: 4 hours
Exam fee: $75 per exam + $100 application fee

Keys to Passing

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

SC HVAC Contractor Study Tips from Top Performers

1Focus on SC's humid subtropical climate challenges: high latent loads, dehumidification, mold prevention, and condensate management

2Know the dual regulatory structure: CLB for commercial ($5K+) and RBC for residential ($500+)

3Study the open-book exam format — organize your reference materials with tabs for quick access

4Review Manual J load calculations with SC-specific design temperatures and humidity data

5Understand EPA Section 608 regulations and proper refrigerant handling procedures

Frequently Asked Questions

What is the licensing threshold for SC HVAC contractors?

Commercial HVAC projects over $5,000 require a contractor license from the SC Contractor's Licensing Board. Residential work over $500 requires registration with the Residential Builders Commission.

What exams does South Carolina require?

Both a trade exam (80 questions, 4 hours, 65% passing) and a business/law exam are required. Both exams are open book, administered by PSI, and reference materials can be tabbed and highlighted.

How much experience is needed for a SC HVAC license?

A minimum of 2 years of work experience within the past 5 years in the requested classification is required, along with designation of a Primary Qualifying Party (PQP).