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100+ Free EPA 608 Type I Practice Questions

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2026 Statistics

Key Facts: EPA 608 Type I Exam

100

Practice Questions

OpenExamPrep

5 lb

Small Appliance Charge Limit

EPA Section 608

90% / 80%

Recovery (Compressor On / Off)

EPA Section 608

4 in Hg

Vacuum Recovery Alternative

EPA Section 608

Core + Type I

Sections to Pass

EPA

No expiration

Certification Validity

EPA

EPA Section 608 Type I is the federal certification for servicing small appliances, defined as factory-sealed units containing five pounds or less of refrigerant, such as household refrigerators, window air conditioners, PTACs, and water coolers. Earning it requires passing the Core section plus the Type I section, each commonly graded at about 72% (18 of 25 correct). Type I focuses on system-dependent (passive) versus self-contained (active) recovery, the 90% (operating compressor) and 80% (non-operating) recovery requirements, the 4 inch mercury vacuum alternative, and the pre/post-November 15, 1993 equipment standards, all on top of Core topics such as ozone depletion, the Montreal Protocol, the venting prohibition, and the three R's. There are no prerequisites, the certification never expires, and it is required to buy refrigerant and service small appliances. This free prep includes 100 research-based practice questions with explanations and an AI tutor.

Sample EPA 608 Type I Practice Questions

Try these sample questions to test your EPA 608 Type I exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which atmospheric component do CFC and HCFC refrigerants destroy when chlorine is released into the stratosphere?
A.Nitrogen
B.Ozone
C.Carbon dioxide
D.Water vapor
Explanation: When CFCs and HCFCs reach the stratosphere, ultraviolet light frees chlorine atoms that catalytically destroy ozone (O3) molecules. A single chlorine atom can destroy many thousands of ozone molecules, which is why these refrigerants are regulated under the Clean Air Act.
2Under Section 608 of the Clean Air Act, what practice became illegal beginning November 15, 1995?
A.Recovering refrigerant into a cylinder
B.Knowingly venting CFC and HCFC refrigerants during service, maintenance, or disposal
C.Reclaiming refrigerant to ARI 700 purity
D.Recharging an appliance with virgin refrigerant
Explanation: The Clean Air Act prohibits the knowing release (venting) of ozone-depleting refrigerants and their substitutes during the maintenance, service, repair, or disposal of appliances. The venting prohibition for CFCs and HCFCs took effect July 1, 1992, and was extended to substitutes such as HFCs on November 15, 1995.
3The international treaty that phases out the production of ozone-depleting substances is the:
A.Kyoto Protocol
B.Montreal Protocol
C.Paris Agreement
D.Geneva Convention
Explanation: The Montreal Protocol, signed in 1987, is the international agreement that controls and phases out the production and consumption of ozone-depleting substances such as CFCs and HCFCs. The U.S. implements its obligations through the Clean Air Act.
4What does the recovery 'R' refer to in the three R's of refrigerant management?
A.Cleaning refrigerant for on-site reuse
B.Removing refrigerant from a system and storing it in an external container without testing or processing it
C.Reprocessing refrigerant to meet ARI 700 purity
D.Recharging the refrigerant back into the same system
Explanation: Recovery means to remove refrigerant in any condition from a system and store it in an external container, without necessarily testing or processing it in any way. It is distinct from recycling (cleaning for on-site reuse) and reclamation (reprocessing to ARI 700 standard).
5Refrigerant that has been reprocessed to meet the ARI 700 purity standard and verified by chemical analysis is said to have been:
A.Recovered
B.Recycled
C.Reclaimed
D.Recharged
Explanation: Reclamation means reprocessing refrigerant to at least the purity specified in ARI/AHRI Standard 700 and verifying that purity using the analytical methodology in the standard. Only EPA-certified reclaimers may sell reclaimed refrigerant for use in a different owner's equipment.
6Recycling refrigerant differs from reclaiming because recycling:
A.Always meets ARI 700 purity verified by lab analysis
B.Reduces contaminants using oil separation and filter-driers, typically for reuse on-site, without certifying purity
C.Can only be performed by EPA-certified reclaimers
D.Permanently destroys the refrigerant
Explanation: Recycling cleans refrigerant by separating oil and passing it through filter-driers to reduce moisture, acidity, and particulates, generally for reuse in the same or the owner's equipment. It does not analyze the refrigerant to certify ARI 700 purity, which is what reclamation requires.
7Which class of refrigerant has the highest ozone-depletion potential and was the first targeted for phaseout?
A.HFCs (hydrofluorocarbons)
B.CFCs (chlorofluorocarbons)
C.HCs (hydrocarbons)
D.HFOs (hydrofluoroolefins)
Explanation: CFCs such as R-12 contain chlorine and no hydrogen, so they are very stable and carry chlorine all the way to the stratosphere, giving them the highest ozone-depletion potential. U.S. production of CFCs ended in 1995, ahead of HCFCs.
8A refillable refrigerant recovery cylinder must never be filled above what percentage of its capacity?
A.60%
B.70%
C.80%
D.100%
Explanation: Recovery cylinders must not be filled above 80% of their rated capacity. The remaining headspace allows for thermal expansion of the liquid refrigerant; overfilling can cause hydrostatic pressure to rupture the cylinder if it is warmed.
9Which gas should be used to pressurize a system for leak detection so that no flammable or explosive mixture is created?
A.Oxygen
B.Compressed air
C.Dry nitrogen
D.Acetylene
Explanation: Dry nitrogen is an inert gas used to pressurize systems for leak testing. Oxygen and compressed air must never be used because they can form a combustible or explosive mixture with refrigerant oil under pressure.
10A major health hazard of being in a poorly ventilated area with a large refrigerant leak is:
A.Increased oxygen levels
B.Oxygen deprivation (asphyxiation) because refrigerant displaces air
C.Improved breathing
D.Skin tanning
Explanation: Refrigerant vapors are heavier than air and can displace oxygen in a confined or poorly ventilated space, leading to asphyxiation. Technicians should ensure adequate ventilation and may need self-contained breathing apparatus when concentrations are high.

About the EPA 608 Type I Exam

EPA Section 608 Type I certifies technicians to service small appliances, defined as products manufactured, charged, and hermetically sealed at the factory with five pounds or less of refrigerant, such as household refrigerators, window air conditioners, PTACs, and water coolers. Candidates must pass the Core section plus the Type I section, and the certification does not expire.

Assessment

About 25 Core plus 25 Type I multiple-choice questions; you must pass both sections (commonly 18 of 25, about 72%) to earn Type I certification. This practice bank is 100 selected-response items covering Core and Type I.

Time Limit

Untimed or up to ~2 hours, depending on the testing organization

Passing Score

72% per section (typically 18 of 25 correct)

Exam Fee

~$20-$90 depending on the EPA-approved testing organization (often bundled with Core) (U.S. EPA, administered through EPA-approved testing organizations)

EPA 608 Type I Exam Content Outline

20%

Core: Clean Air Act, Ozone & Regulations

Ozone depletion, the Montreal Protocol, the venting prohibition, CFC/HCFC phaseout dates, the refrigerant sales restriction, and technician certification

15%

Core: Recovery, Recycling & Reclamation

The three R's, ARI/AHRI 700 reclamation purity, same-owner versus different-owner use, and never mixing refrigerants

15%

Core: Refrigeration Cycle & Substitutes

The refrigeration cycle and refrigerant states, evacuation and moisture removal, ODP/GWP, R-12 to R-134a substitution, and SNAP alternatives

10%

Core: Safety, Cylinders & Recordkeeping

Exposure hazards and PPE, the 80% cylinder fill limit, DOT recovery cylinders, dry-nitrogen leak testing, and recordkeeping

20%

Type I: Small Appliance Definition & Recovery Methods

The 5-pound hermetically sealed definition, system-dependent (passive) versus self-contained (active) recovery, and piercing access valves

20%

Type I: Recovery Requirements & Equipment

90% versus 80% recovery, the 4 in Hg vacuum alternative, pre/post-1993 equipment standards, ARI 740, disposal, and recordkeeping

How to Pass the EPA 608 Type I Exam

What You Need to Know

  • Passing score: 72% per section (typically 18 of 25 correct)
  • Assessment: About 25 Core plus 25 Type I multiple-choice questions; you must pass both sections (commonly 18 of 25, about 72%) to earn Type I certification. This practice bank is 100 selected-response items covering Core and Type I.
  • Time limit: Untimed or up to ~2 hours, depending on the testing organization
  • Exam fee: ~$20-$90 depending on the EPA-approved testing organization (often bundled with Core)

Keys to Passing

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

EPA 608 Type I Study Tips from Top Performers

1Remember the small-appliance definition exactly: factory-made, charged, and hermetically sealed with 5 pounds or less of refrigerant
2Memorize the recovery numbers: 90% or 4 in Hg with an operating compressor, 80% when the compressor is not operating
3Know the November 15, 1993 equipment cutoff: pre-1993 equipment only needs 80% or 4 in Hg, post-1993 equipment needs 90% with a working compressor
4Distinguish system-dependent (passive, uses the appliance compressor) from self-contained (active, has its own compressor) recovery
5Master the Core three R's: recover, recycle, reclaim (only reclamation meets ARI 700 and allows use in a different owner's equipment)
6Complete all 100 practice questions and review every miss with the AI tutor before sitting the exam

Frequently Asked Questions

What does EPA 608 Type I certify me to do?

Type I certifies you to service small appliances, defined as factory-manufactured, charged, and hermetically sealed units with five pounds or less of refrigerant, such as household refrigerators, window air conditioners, PTACs, and water coolers. Larger or field-charged systems require Type II or Type III.

How many questions are on the EPA 608 Type I exam and what score do I need?

To earn Type I certification you pass the Core section (about 25 questions) and the Type I section (about 25 questions). Each section is commonly graded at about 72%, meaning 18 of 25 correct, and you must pass both.

What is the difference between system-dependent and self-contained recovery?

System-dependent (passive) recovery uses the appliance's own compressor or internal pressure to push refrigerant into a container and is allowed only on small appliances. Self-contained (active) recovery equipment has its own compressor, so it can recover refrigerant even when the appliance compressor is inoperative.

What are the Type I recovery requirements?

With post-November 15, 1993 equipment and an operating compressor you must recover 90% of the charge or pull a 4 inch mercury vacuum. If the compressor is not operating you must recover 80%. Pre-November 15, 1993 equipment must recover 80% or reach 4 in Hg regardless of compressor status.

Does the EPA 608 Type I certification expire?

No. Once you pass, Section 608 technician certification is valid for life and does not expire. You should keep your certification card as proof when you buy refrigerant or service appliances.

Is this free EPA 608 Type I practice as good as paid prep?

Our 100 practice questions cover the same Core and Type I content as the official exam, with a teaching explanation for every answer plus free daily AI tutor interactions. All content is free forever and updated for 2026.