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Fundamentals; IMC 2021 / IFGC 2021 / NEC 440 references

HVAC Fundamentals Practice
Get ready for what’s next.

Refrigeration, airflow, electrical, controls, and heating. Calculations included.

200 questions in this track

Exam and product profile

General code practice. Not aligned to any specific state exam blueprint. State guides and credential resources ↓

Exam / general subject
HVAC Fundamentals Practice
Exam code
Not verified
Credential issuer
State/local licensing authority; classification-specific authorities and limitations are recorded in state guides below
Jurisdiction
State/local: Texas, Florida, California, Colorado, Arizona, Georgia, North Carolina, Ohio, Washington, Utah
Administrator
Varies by authority/classification; verified examples include PSI, Prov, CPS HR/Pearson VUE and state-board practical testing (see state guides below)
CodeReady references / editions
Fundamentals; IMC 2021 / IFGC 2021 / NEC 440 references
Official exam editions
Not verified
Official references
Mechanical, fuel-gas and electrical exam references depend on jurisdiction and scope; see state guides below
Official bulletin / objectives
Not verified
Eligibility summary
Jurisdiction, license classification, experience, education, application approval and any practical component must be checked separately. No single national eligibility rule is established by these state-specific sources.
Eligibility source
Not verified
Components covered (subject scope)
HVAC fundamentals practice; not a verified single-state journeyman exam blueprint
Components excluded
State-specific exam alignment unless expressly verified for a named classification and reference edition; Hands-on/practical assessments; Apprenticeship, supervised experience, required classroom hours, application/approval and license issuance
Official format
Not verified
Last verified (profile research, not a bank accuracy audit)
2026-09-19

Editorial recommendation: sell as general trade/code practice, not a national journeyman licensing exam.

State rows distinguish verified contractor or specialty alternatives from an unverified journeyman-equivalent credential. A verified alternative is not a verified match to this product.

Adopted construction code and exam references are separate fields. Never infer one from the other or transfer one state's vendor/eligibility to another.

No single national question count, time limit, section weighting or passing score applies. Catalog defaults are product practice settings only.

Bank-by-bank question accuracy and full objective coverage were not audited in this research.

See every not verified state field and its reason before making consumer-facing claims.

Verification sources and scope

Verified: Editorial cross-jurisdiction synthesis: these state-specific licensing systems do not form one national journeyman exam. Current product should remain general-practice; precise official facts and gaps are field-cited in stateRows. Confirmed in the cited official source.

Preparing, qualifying, passing, receiving

  1. Preparing: CodeReady provides independent study materials.
  2. Qualifying: Meet the issuer’s eligibility, application, experience, and training requirements separately.
  3. Passing: Complete the required official assessments; a practice percentage is not an official result. OSHA Outreach requires authorized training, not a CodeReady test.
  4. Receiving: Only the responsible issuer can award the credential or card after its requirements are met. Buying or completing this bank does not confer one.
State guides and credential resources

Texas

Credential classification
ACR Contractor Class A/B endorsement exams; separate ACR Certified Technician exam
Licensing authority
Texas Department of Licensing and Regulation
Administrator
PSI
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Bulletin transition notice: 2024 IFGC, IMC, UMC effective September 1, 2026
Bulletin / official guide
Official guide

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Florida

Credential classification
Class A/B Air-Conditioning or Mechanical Contractor; not generic HVAC journeyman
Licensing authority
Florida DBPR Construction Industry Licensing Board — contractor scope
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

California

Credential classification
C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor exam
Licensing authority
California Contractors State License Board — contractor scope
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
2025 California Mechanical, Electrical, Plumbing, Building, Energy codes/standards among study resources; closed-book
Bulletin / official guide
Official guide

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Colorado

Credential classification
Not verified
Licensing authority
Not verified
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Arizona

Credential classification
Not verified
Licensing authority
Not verified
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Georgia

Credential classification
Not verified
Licensing authority
Not verified
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

North Carolina

Credential classification
Heating/HVAC contracting; specific license group not verified here
Licensing authority
NC State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors — HVAC contracting scope
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Ohio

Credential classification
Commercial HVAC Contractor (Refrigeration and Hydronics also separate board trades)
Licensing authority
Ohio Construction Industry Licensing Board
Administrator
PSI — commercial contractor scope
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Washington

Credential classification
Electrical specialty HVAC/refrigeration system (06A), restricted (6B); electrical scope only
Licensing authority
L&I for electrical specialty certification; full mechanical/local authority not verified
Administrator
PSI for electrical specialty exams only
Adopted construction code (not necessarily the tested edition)
Electrical installation scope: NEC 2023; NEC 2026 from December 31, 2026; mechanical/fuel-gas adoption not verified
Exam references
Electrical bulletin names NEC 2020; complete mechanical HVAC exam references not verified
Bulletin / official guide
Official guide

Verified: 2026-09-19. This credential is not a claim of bank alignment.

Utah

Credential classification
Not verified
Licensing authority
Not verified
Administrator
Not verified
Adopted construction code (not necessarily the tested edition)
Not verified
Exam references
Not verified
Bulletin / official guide
Not verified

Verified: 2026-09-19. This credential is not a claim of bank alignment.

What you get / what you don’t

What you get: Access to this practice bank, cited explanations, flashcards, browser-local progress, and practice tests. Tests use eligible reviewed items only; test sizes can be smaller than the bank.

What you don’t: A license, certification, OSHA card, exam voucher, authorized training hours, practical assessment, hands-on lab, or official performance-based question simulation. No guaranteed exam result or claim of exhaustive objective coverage.

$39 buys this bank for the operating life of CodeReady. All-access is $79 lifetime or $19/month while subscribed.

Retake-access extension: monthly subscribers may request one free month of continued access after a documented exam attempt within 60 days. Single-bank and lifetime buyers already retain access; this is not an added benefit for them. Terms.

KNOW THE TERRITORY

What you’ll practice.

Refrigeration cycle and componentsPractice topic
Electrical and motorsPractice topic
Airflow and duct designPractice topic
Controls and wiring diagramsPractice topic
Heating systemsPractice topic
Load and psychrometricsPractice topic
Refrigerant piping and chargingPractice topic

Topic organization for this practice bank, not a claim of exhaustive official exam coverage. EPA mocks use 25 questions per section; A+ mocks keep the two Cores separate.

Try ten free practice questions →

TAKE IT FOR A TEST DRIVE

Three questions. No sign-up.

01 / Refrigeration cycle and components

In a conventional vapor-compression cooling system, which component absorbs heat from the air being cooled?

  1. Condenser
  2. Compressor
  3. Evaporator
  4. Liquid receiver
Show answer & explanation

Evaporator

Refrigerant evaporates at low pressure in the evaporator, taking heat from the air passing over the coil.

ASHRAE Fundamentals — thermodynamics and refrigeration cycles

02 / Refrigeration cycle and components

What is the compressor's primary function in a basic vapor-compression refrigeration circuit?

  1. Store high-pressure liquid for expansion
  2. Condense discharge vapor using outdoor air
  3. Reduce liquid pressure before the evaporator
  4. Raise vapor pressure and circulate refrigerant
Show answer & explanation

Raise vapor pressure and circulate refrigerant

Compression raises vapor pressure and temperature so the refrigerant can reject heat to a warmer sink than the evaporator.

ASHRAE Fundamentals — thermodynamics and refrigeration cycles

03 / Refrigeration cycle and components

Which component rejects both the heat absorbed by the evaporator and the energy added by the compressor?

  1. Expansion valve
  2. Suction accumulator
  3. Evaporator
  4. Condenser
Show answer & explanation

Condenser

At steady state, condenser heat rejection equals evaporator heat absorption plus compressor energy added to the refrigerant.

ASHRAE Fundamentals — thermodynamics and refrigeration cycles

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