100+ Free IA HVAC Practice Questions

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Question 1

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Which Iowa state board oversees HVAC contractor licensing?

Iowa Workforce Development

Iowa Plumbing and Mechanical Systems Board

Iowa Department of Natural Resources

Iowa Building Code Bureau

to track

2026 Statistics

Key Facts: IA HVAC Exam

75%

Passing Score

Iowa Plumbing and Mechanical Systems Board

100 Q

Practice Questions

OpenExamPrep

Varies by exam

Exam Fee

Iowa Plumbing and Mechanical Systems Board

$5,000 surety bond

Surety Bond

Iowa Plumbing and Mechanical Systems Board

Sample IA HVAC Practice Questions

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

1Which Iowa state board oversees HVAC contractor licensing?

A.Iowa Workforce Development

B.Iowa Plumbing and Mechanical Systems Board

C.Iowa Department of Natural Resources

D.Iowa Building Code Bureau

Explanation: The Iowa Plumbing and Mechanical Systems Board, part of the Department of Inspections, Appeals, and Licensing (DIAL), oversees HVAC contractor licensing. The Board requires all HVAC/R, sheet metal, hydronic, and mechanical professionals to be licensed.

2How many years of practical experience as an apprentice are required before sitting for the Iowa HVAC journeyperson exam?

A.2 years

B.3 years

C.4 years

D.5 years

Explanation: Iowa requires at least four years of practical experience as an apprentice before applicants are eligible to sit for the journeyperson examination. This experience must be documented and submitted with the exam approval application.

3What is the minimum passing score required on Iowa HVAC licensing exams?

A.65%

B.70%

C.75%

D.80%

Explanation: Iowa HVAC licensing exams require a minimum passing score of 75%. This applies to both the journeyperson exam (75 questions, 3 hours) and the master exam (100 questions, 4 hours).

4How many questions are on the Iowa master HVAC exam?

A.50 questions in 2 hours

B.75 questions in 3 hours

C.100 questions in 4 hours

D.120 questions in 5 hours

Explanation: The Iowa master HVAC exam consists of 100 questions with a 4-hour time limit. The exam is open-book format and requires a 75% passing score. It is administered by Kirkwood Community College at 15 locations statewide.

5Are Iowa HVAC licensing exams open-book or closed-book?

A.Closed-book with no reference materials allowed

B.Open-book format

C.Partially open — code books only

D.Electronic references only

Explanation: Iowa HVAC licensing exams are administered in open-book format. Candidates may bring approved reference materials to the exam, which is administered by Kirkwood Community College at testing locations throughout the state.

6What is the minimum surety bond amount required for an Iowa HVAC contractor?

A.$2,000

B.$5,000

C.$10,000

D.$25,000

Explanation: Iowa requires HVAC contractors to provide a surety bond of at least $5,000. The bond must be issued by an entity licensed to do business in Iowa and must include a provision that it cannot be canceled without first giving 10 days written notice to the Board.

7What is the minimum general liability insurance coverage required for Iowa HVAC contractors?

A.$100,000

B.$300,000

C.$500,000

D.$1,000,000

Explanation: Iowa requires HVAC contractors to maintain a minimum of $500,000 in general business liability coverage. The certificate of liability must list the Iowa Plumbing and Mechanical Systems Board as the certificate holder and include a minimum 10-day notice of cancellation.

8Who must be listed as the certificate holder on an Iowa HVAC contractor's liability insurance?

A.The contractor's primary client

B.The Iowa Plumbing and Mechanical Systems Board

C.The Iowa Secretary of State

D.The contractor's bonding company

Explanation: The certificate of liability insurance must list the Iowa Plumbing and Mechanical Systems Board, 321 East 12th Street, Des Moines, Iowa 50319, as the certificate holder. This ensures the Board is notified if coverage lapses.

9What is the first step in the Iowa HVAC licensing process?

A.Schedule the exam directly with Kirkwood Community College

B.Submit an Exam Approval Application to the Board

C.Obtain the surety bond

D.Purchase liability insurance

Explanation: The first step is submitting an Exam Approval Application to the Iowa Plumbing and Mechanical Systems Board. Once approved, the applicant schedules and passes the exam, then submits a Post-Examination Licensure Application with bond and insurance documentation.

10To be eligible for the Iowa master HVAC exam, how long must an applicant have held a journeyperson license?

A.1 year

B.2 years

C.3 years

D.5 years

Explanation: To sit for the Iowa master HVAC exam, an applicant must have held a journeyperson license for at least two years with documented experience. Alternatively, an applicant may hold a master license from another jurisdiction.

About the IA HVAC Exam

The Iowa HVAC contractor licensing exam tests knowledge of state regulations, mechanical codes, HVAC system design and installation, refrigerant handling, safety, and business management. 4 years apprentice + 2 years journeyman for master.

Questions

100 scored questions

Time Limit

3-4 hours

Passing Score

75%

Exam Fee

Varies by exam (Iowa Plumbing and Mechanical Systems Board (DIAL))

IA HVAC Exam Content Outline

25%

State Laws & Licensing

Iowa HVAC licensing, bond/insurance requirements, permits, and contractor regulations

25%

Trade Knowledge

HVAC system design, load calculations, ductwork, refrigerant handling, and energy efficiency

20%

Mechanical Codes

IMC compliance, venting, combustion air, gas piping, and code requirements

15%

Safety Regulations

OSHA safety, EPA Section 608, refrigerant management, and worker protection

15%

Business Management

Contracts, estimating, liens, insurance, and business operations

How to Pass the IA HVAC Exam

What You Need to Know

Passing score: 75%
Exam length: 100 questions
Time limit: 3-4 hours
Exam fee: Varies by exam

Keys to Passing

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

IA HVAC Study Tips from Top Performers

1Focus on Iowa-specific HVAC licensing regulations and requirements

2Review the International Mechanical Code sections on venting, combustion air, and equipment installation

3Study EPA Section 608 refrigerant handling requirements and safety protocols

4Practice load calculation concepts relevant to Iowa's climate

Frequently Asked Questions

What license do I need for HVAC work in Iowa?

Iowa requires a Master HVAC Contractor license. Requirements include 4 years apprentice + 2 years journeyman for master.

What score do I need to pass?

You need 75% to pass the Iowa HVAC contractor exam.

What bond and insurance does Iowa require?

Iowa requires $500,000 general liability. Bond: $5,000 surety bond.

Is continuing education required?

CE requirements: As required by Board.