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100+ Free NV HVAC Contractor Practice Questions

Pass your Nevada Refrigeration & Air Conditioning Contractor License (C-21) exam on the first try — instant access, no signup required.

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100+ Questions
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2026 Statistics

Key Facts: NV HVAC Contractor Exam

85

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

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.