Free EPA 608 Practice Test 2025 Official Study Guide [PDF]

Last Updated on January 20, 2025

Free EPA 608 Certification Exam Practice Test 2025 Study Guide [PDF] Online: Prepare for your EPA 608 certification with our comprehensive online practice test and free printable study guide. This resource is designed to assist you in mastering the specific requirements for the EPA (Environmental Protection Agency) Section 608 Technician Certification.

To earn Section 608 Technician Certification, technicians must pass an EPA-approved test tailored to the type of equipment they wish to work on. An EPA-approved certifying organization must administer these tests, and once obtained, the Section 608 Technician Certification credentials do not expire.

Please note that the core test required for Universal Certification must be taken as a proctored exam and cannot be open-book. Our practice quiz questions and answers will help you better prepare for this proctored core test and achieve Universal Certification.

Table of Contents

FREE EPA 608 Practice Test 2025

Our sample EPA 608 Practice Test question answer is based on Section 608 Certification Exam Preparatory Manual 9th Edition V2. You can participate in our free quiz or download a printable PDF for better EPA 608 Certification Exam preparation. Before starting the EPA practice exam, these Practice questions are NOT the actual exam questions.

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EPA PreTest

1 / 20

1) In lower altitudes of the atmosphere, CFCs are very reactive.

A) True

B) False

2 / 20

2) What has the greatest potential for ozone depletion (ODP)?

A) (C) HFC

B) (D) Everyone will have the same ODP

C) (B) HCFC

D) (A) CFC

3 / 20

3) Which temperature has to be reached while extracting oil from a low-pressure system?

A) (D) 100°F

B) (A) 50°F

C) (B) 130°F

D) (C) 75°F

4 / 20

4) Heat pump systems that use R-134a ought to be tested for leaks using _____.

A) (B) HCFCs

B) (D) Compressed dry air

C) (A) Nitrogen under pressure

D) (C) CFCs

5 / 20

5) Large refrigerant spills can cause asphyxia because _______.

A) (A) They displace oxygen because they are heavier than air

B) (C) They are lighter than air and make you dizzy

C) (D) They sting the nose while making you sneeze

D) (B) They have an unpleasant odor and make it difficult to breathe

6 / 20

6) The refrigerants with the letter __________ will be more harmful.

A) (A) D

B) (D) A

C) (C) B

D) (B) C

7 / 20

7) What HC refrigerant can be used in modern domestic small appliances?

A) (C) R-717

B) (D) R-600a

C) (A) R-404A

D) (B) R-410a

8 / 20

8) Recovery cylinders are made to be refilled.

A) False

B) True

9 / 20

9) What are disposable cylinders made of?

A) (D) 3-way valve

B) (A) 2-way valve

C) (C) Will have 0 valves

D) (B) 1-way valve

10 / 20

10) Which of the following procedures is used to identify the kind of refrigerant if the label indicating the refrigerant is missing?

A) (B) Density-Temperature Relationship

B) (A) Method of Pressure-Temperature

C) (D) Method of Density - Volume

D) (C) All of the alternatives are correct

11 / 20

11) Every ______ years, refilling cylinders at high pressure and at room temperature must be hydrostatically checked and date-marked.

A) (C) 2

B) (A) 5

C) (D) 15

D) (B) 3

12 / 20

12) Which of the following configurations must the relief valve present in the refrigeration system have?

A) (A) Series

B) (B) Parallel

C) (C) Either series or parallel

13 / 20

13) Long hoses will result in an excessive pressure drop.

A) False

B) True

14 / 20

14) Every vacuum decay test demonstrates that the system pressure increases to more than 0 psig when the vacuum forms and then _____.

A) (B) There is a leak found, but no trapped refrigerant

B) (A) The refrigerant may become trapped in the system

C) (C) The choices are all incorrect

D) (D) No indication of a leak was present

15 / 20

15) Prior to switching to liquid charging, the R-410a water chiller has to be loaded using vapor to a pressure that is at least _____.

A) (B) 320 psig

B) (D) 20 psig

C) (A) 220 psig

D) (C) 120 psig

16 / 20

16) HFC refrigerants have zero potential for ozone depletion and zero potential for global warming.

A) True

B) False

17 / 20

17) According to ASHRAE Standard 15, rooms using refrigerant systems have to be supplied with sensors _______.

A) (B) That alerts you to oxygen shortage

B) (C) Can detect high quantities of refrigerant vapors and alert people to the need to leave the room

C) (A) It sounds an alarm & automatically starts a ventilation system when there is a lack of oxygen

18 / 20

18) In the suction line, the refrigerant will be in the _____ phase.

A) (B) A cool liquid

B) (A) Cold vapor

C) (C) Scalding vapor

D) (D) A hot liquid

19 / 20

19) To get rid of ice off a sight glass, use ________.

A) (D) The refrigerant R-11

B) (C) Water

C) (A) A flat file or a screwdriver

D) (B) A spray of rubbing alcohol

20 / 20

20) Ozone depletion risk for Class 1 refrigerants will be higher than:

A) (A) 0.2

B) (B) 2

C) (D) 1

D) (C) 0.8

Your score is
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Core Test (English)

Type 1 (English)

EPA 608 Type 1 (Small Appliances) Practice Test

Type 2 (English)

EPA 608 Type 2 Practice Test (High Pressure Appliances)

Type 3 (English)

EPA 608 Type 3 Low-pressure Appliances

EPA Certification 2025

EPA regulations (40 CFR Part 82, Subpart F) under Section 608 of the Clean Air Act define a “technician” as an individual who performs any of the following activities:

Attaching and detaching hoses and gauges to and from an appliance to measure the pressure within the appliance.
Adding refrigerant to or removing refrigerant from an appliance.
Any other activity that violates the integrity of a motor vehicle air conditioner (MVAC)-like an appliance or small appliance (other than disposal).

Types of Certification

EPA has developed four types of certification:

For servicing small appliances (Type I).
For servicing or disposing of high- or very high-pressure appliances, except small appliances and MVACs (Type II).
For servicing or disposing of low-pressure appliances (Type III).
For servicing all types of equipment (Universal).

Type I. Persons who maintain, service, repair, or dispose of small appliances must be certified as Type I technicians. A small appliance is defined as a pre-assembled unit, hermetically sealed and factory-charged with 5 lbs. or less of refrigerant. Examples include water coolers, window units, refrigerators, freezers, dehumidifiers, ice machines, and package terminal air conditioning. Split systems are not included in Type I.

Type II. Persons who maintain, service, repair, or dispose of medium, high, and very high-pressure appliances containing more than 5 lbs. of refrigerant or if the installation of such equipment requires refrigerant charging, must be certified as Type II technicians High-pressure refrigerants have a pressure between 155 psig & 340 psig at a liquid phase temperature of 104°F and medium pressure refrigerants have a pressure between 30 psig & 155 psig at a liquid phase temperature of 104°F. Type II certification does not include small appliances or motor vehicle air conditioning (MVAC) systems.

Type III. Persons who maintain, service, repair, or dispose of low-pressure appliances (centrifugal and chillers) must be certified as Type III technicians. Low-pressure refrigerants have pressures of 30 psig or lower at a liquid phase temperature of 104°F.

Universal To be certified as Universal, a technician must pass all four sections; Core, Type I, Type II, and Type III

EPA 608 Certification Test Format

The test contains four sections: the Core and sections I, II, and III. Each section includes twenty-five (25) multiple-choice questions. Technicians MUST achieve a minimum passing score of 70 percent in each group/section in which they are to be certified. For example, a technician seeking Universal certification must achieve a minimum score of 70 percent, or 18 out of 25 correct, on each test section.

If a technician fails one or more of the sections, they may retake the failed section(s) without retaking the section(s) in which they earned a passing score. In the meantime, the technician will be certified in the Type for which they received a passing score. One exception: a technician MUST achieve a passing score on the Core plus anyone Type to receive any certification.

The Core contains 25 general knowledge questions relating to stratospheric ozone depletion, rules and regulations of the Clean Air Act, the Montreal Protocol, refrigerant recovery, recycling and reclaiming, recovery devices, substitute refrigerants and oils, recovery techniques, dehydration, recovery cylinders, safety, and shipping.

Section I contains 25 sector-specific questions about small appliances, Section II contains 25 sector-specific questions related to medium and high-pressure appliances, and Section III contains 25 sector-specific questions about low-pressure appliances.

Federal regulation requires that this exam be conducted as a closed-book exam by an authorized test administrator (Proctor). The only outside materials allowed during the test are a temperature/ pressure chart and a calculator. Phones are NOT allowed to be used during the examination and MUST be turned off and put away (not on the desktop) during the examination.

FREE EPA 608 Study Guide [PDF]

4Synopsis: Section 608 of the Federal Clean Air Act requires that all persons who maintain, service, repair, or dispose of appliances that contain ozone-depleting refrigerants be certified in proper refrigerant handling techniques.

These regulations were revised in the fall of 2016 to address HFCs and HFOs, revised allowable leak rates, and expanded record-keeping guidelines. The ESCO Institute’s EPA Section 608 Certification Program has been revised to incorporate these new regulations.

In its second release, the ESCO Institute’s EPA Section 608 Preparatory 9th Edition V2 Manual covers the material required to pass the Universal Exam in 32 pages successfully. In its second release, the ESCO Institute’s EPA Section 608 Preparatory 9th Edition V2 Manual covers the material required to pass the Universal Exam in 32 pages.

ISBN 1-930044-60-7

EPA 608 Technician Certification Study Guide [PDF]
Guide to good leak testing [PDF]
Natural Refrigerants [PDF]
EPA ASHRAE [PDF]
Significant New Alternatives Policy (SNAP)

Certifying entity

Air Conditioning Contractors of America	ESCO Group
Exam Name: Section 608 Exam Website: www.acca.org/certification/epa Number of Questions: N/A Question Type: Multiple Choice, closed-book Exam Time: N/A	Exam Name: EPA Section 608 Exam Website: www.escogroup.org/training/epa608.aspx Number of Questions: N/A Question Type: Multiple Choice,closed-book Exam Time: N/A
Exam Site: Proctored on-site at campus Exam Price: $30.95, only proctors can order the test booklet Candidate Requirements:Core exam and either Type I, Type II or Type III exams must be passed to become certified. Study Materials: Technicians Guide & Workbook available $90 Test Prep Course $84	Exam Site: Proctored on-site at campus, paper or online testing Exam Price: N/A, Your proctor will have the information and can order the test booklet Candidate Requirements: N/A Study Materials: Free practice exam: EPA Section 608 Preparatory Manual $16.95 or check with your proctor for availability