100+ Free NV HVAC Contractor Practice Questions

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What is the Nevada State Contractors Board license classification for refrigeration and air conditioning contractors?

C-10

C-15

C-21

C-28

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2026 Statistics

Key Facts: NV HVAC Contractor Exam

Trade Exam Questions

PSI

75%

Passing Score

NSCB

3 hrs

Exam Duration

PSI

$140

Combined Exam Fee

PSI

4 yrs

Experience Required

Within past 15 years

C-21

License Classification

NSCB

Sample NV HVAC Contractor Practice Questions

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

1What is the Nevada State Contractors Board license classification for refrigeration and air conditioning contractors?

A.C-10

B.C-15

C.C-21

D.C-28

Explanation: The C-21 classification is for Refrigeration and Air Conditioning contractors in Nevada. This license covers installation, service, repair, and alteration of refrigeration and air conditioning systems, including ductwork, piping, and controls.

2What is the minimum passing score for the Nevada C-21 trade exam?

A.65%

B.70%

C.75%

D.80%

Explanation: A minimum score of 75% is required to pass the Nevada C-21 Refrigeration and Air Conditioning Contractor trade exam. The exam has 85 questions with a 3-hour time limit.

3How many years of experience are required for a Nevada C-21 contractor license?

A.2 years

B.3 years

C.4 years

D.6 years

Explanation: Nevada requires a minimum of 4 years of experience within the past 15 years for the C-21 Refrigeration and Air Conditioning contractor license. Up to 3 years may be substituted with accredited educational training.

4How many questions are on the Nevada C-21 trade exam?

A.60 questions

B.75 questions

C.85 questions

D.100 questions

Explanation: The Nevada C-21 Refrigeration and Air Conditioning trade exam consists of 85 questions with a 3-hour time limit. The exam is open-book with approved references.

5What is the combined fee for the Nevada business and law exam plus one trade exam?

A.$95

B.$120

C.$140

D.$175

Explanation: The combined fee for the Nevada Contractor Management Survey (business and law) and one trade exam is $140. Additional trade exams cost $95 each.

6The Nevada Contractor Management Survey (business and law exam) contains how many questions?

A.40 questions

B.50 questions

C.63 questions

D.75 questions

Explanation: The Nevada Contractor Management Survey (business and law exam) consists of 63 questions with a 126-minute time limit. A score of 75% is required to pass.

7Under NRS 624, what bond is required for Nevada contractors?

A.Fixed $5,000 bond for all contractors

B.Bond amount varies based on financial statement and license limit

C.No bond required

D.$50,000 minimum bond

Explanation: Under NRS 624.270, the bond amount for Nevada contractors varies based on the contractor's financial statement and the requested monetary license limit. Bond amounts range from $1,000 to $500,000, determined by the NSCB.

8What workers' compensation requirement applies to Nevada C-21 contractors?

A.Optional for sole proprietors

B.Required for all contractors with employees

C.Only required for commercial projects

D.Not required in Nevada

Explanation: Nevada requires all employers with one or more employees to carry workers' compensation insurance. C-21 contractors with no employees may file an exemption, but those with any employees must maintain coverage through a licensed insurer or the state fund.

9If a Nevada C-21 contractor fails the trade exam, how long must they wait before retaking it?

A.48 hours

B.1 week

C.2 weeks

D.30 days

Explanation: Nevada requires a 2-week (14-day) waiting period before retaking a failed contractor exam. This applies to both the trade exam and the Contractor Management Survey.

10Under Nevada law, what is the maximum amount of damages the Residential Recovery Fund can pay per claimant against a licensed contractor?

A.$20,000

B.$35,000

C.$40,000

D.$50,000

Explanation: The Nevada Residential Recovery Fund can pay up to $35,000 per claimant for damages caused by a licensed contractor's violations. This fund provides additional consumer protection beyond the contractor's bond.

About the NV HVAC Contractor Exam

The Nevada C-21 exam tests knowledge of NRS 624 contractor regulations, desert climate HVAC design, refrigerant handling, mechanical codes, and business/law practices for the Refrigeration and Air Conditioning license.

Questions

85 scored questions

Time Limit

3 hours

Passing Score

75%

Exam Fee

$140 (trade + management survey) (Nevada State Contractors Board / PSI)

NV HVAC Contractor Exam Content Outline

25%

State Laws & Regulations

NRS 624, licensing, bonding, Residential Recovery Fund, and advertising requirements

25%

Trade Knowledge

Desert climate design, load calculations, extreme heat considerations, and energy efficiency

20%

Mechanical Codes

IMC compliance, fire dampers, venting, and equipment installation

15%

Safety Regulations

EPA Section 608, OSHA, fall protection, and hazardous material handling

15%

Business Management

Contract law, change orders, deposits, lien rights, and business operations

How to Pass the NV HVAC Contractor Exam

What You Need to Know

Passing score: 75%
Exam length: 85 questions
Time limit: 3 hours
Exam fee: $140 (trade + management survey)

Keys to Passing

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

NV HVAC Contractor Study Tips from Top Performers

1Study NRS Chapter 624 including bonding, deposits, advertising, and disciplinary provisions

2Learn desert climate HVAC design: extreme heat, sand/dust protection, UV-resistant materials

3Review cooling load calculations for Las Vegas (108°F design) and Reno (100°F design)

4Understand evaporative cooling applications for Nevada's dry climate

5Practice NV contract law including change order requirements and lien timelines

Frequently Asked Questions

What is the Nevada C-21 exam?

The C-21 is an 85-question open-book trade exam for the Refrigeration and Air Conditioning classification, plus a 63-question Contractor Management Survey.

What experience is needed?

4 years within the past 15 years. Up to 3 years can be substituted with accredited education.

What is the maximum deposit allowed?

Nevada limits residential deposits to 10% or $1,000, whichever is less (NRS 624.630).

What is the Residential Recovery Fund?

A consumer protection fund that pays up to $35,000 per claimant for damages from licensed contractor violations.