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EPA 608 NEC 2023

EPA 608 Type I Practice Test 9

This test focuses on general safety practices for Type I technicians: eye and skin protection, electrical safety, working in confined spaces, and identifying refrigerant before beginning any service work. It also reviews recovery, disposal, and certification basics.

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The EPA 608 certification is required by law for any technician who purchases or handles refrigerants. It covers safe handling, leak detection, recovery, and environmental regulations.

Type I covers small appliances (≤5 lbs refrigerant), Type II covers high-pressure systems, Type III covers low-pressure systems, and Universal covers all three. Most HVAC technicians pursue Universal certification.

You must score at least 70% on each section of the exam. The Universal exam has four parts: core, Type I, Type II, and Type III.

Type I Exam Tip: Always identify the refrigerant before you start work. This affects what tools, recovery cylinder, and safety precautions you need, especially if the refrigerant turns out to be flammable, like R-600a.

25

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25 min

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70%

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EPA 608 Type I Practice Test 9 — Question List

Question 1: What protective equipment should a technician wear when connecting hoses to a refrigerant system?

Eye and skin protection
A raincoat only
No protection is needed
Ear plugs only

Question 2: What should a technician do before opening the electrical compartment of a plugged-in appliance?

Unplug or de-energize the appliance first
Turn the appliance up to its highest setting
Wrap the cord in electrical tape
Nothing extra is needed

Question 3: Why should a technician identify the refrigerant in a system before starting service work?

It has no real effect on the service work
The refrigerant type affects which tools, cylinder, and safety precautions are needed
It is only needed for paperwork, not safety
Refrigerant type only matters for Type II equipment

Question 4: Why is good ventilation important when working in a small, enclosed space with refrigerant?

A refrigerant leak can displace the oxygen in the air, creating a risk of suffocation
Ventilation only matters for appearance
Refrigerant makes the air taste bad
Ventilation is only needed outdoors

Question 5: Why should a technician confirm the refrigerant type before connecting a recovery cylinder?

To avoid mixing incompatible refrigerants and to use a properly rated cylinder
It does not matter which cylinder is used
Only to satisfy company paperwork
Because all refrigerants use identical cylinders

Question 6: A technician is about to service a small appliance located in a tight, enclosed utility closet. What should be checked first?

That the space has adequate ventilation
That the closet door is locked
That the appliance is painted correctly
Nothing, small closets carry no extra risk

Question 7: A technician is not sure what refrigerant is in an older appliance. What should be done before recovering it?

Skip identification and recover it into any cylinder
Identify the refrigerant first
Vent it to make identification unnecessary
Assume it is R-134a and proceed

Question 8: True or False: It is safe to recover two different refrigerant types into the same cylinder.

True, refrigerants mix safely in any combination
True, as long as both are non-flammable
True, mixing improves recovery speed
False, mixing refrigerant types is unsafe and contaminates the cylinder

Question 9: Why is it dangerous to work on a plugged-in appliance with wet hands or in a wet environment?

Water increases the risk of electrical shock
Water has no effect on electrical safety
Water only affects refrigerant pressure
Water makes tools slippery but nothing else

Question 10: Why can refrigerant escaping under pressure cause frostbite on contact with skin?

Refrigerant becomes extremely cold as it expands and escapes from pressure
Refrigerant is always stored below freezing
Refrigerant reacts chemically with skin oils
Frostbite only happens with R-12

Question 11: Why should a technician unplug an appliance before working near its compressor wiring?

To avoid the risk of electrical shock
To make the compressor run faster
To save on electricity costs
It is not necessary if the technician wears gloves

Question 12: A technician is working in a small, poorly ventilated room and begins to feel dizzy while a refrigerant leak may be present. What is the most likely cause, and what should the technician do?

Low blood sugar; the technician should eat a snack and keep working
Normal fatigue; the technician should ignore it and continue
Oxygen displacement from the leak; the technician should leave and ventilate the area
Refrigerant allergy; the technician should apply lotion

Question 13: True or False: Because most small-appliance refrigerants are not classified as poisonous, it is safe to breathe large amounts of them in an enclosed space.

False, refrigerant can displace oxygen and cause suffocation even if not classified as toxic
True, non-toxic refrigerants carry no breathing risk
True, as long as the room has a window
True, only R-12 poses a breathing risk

Question 14: What is the refrigerant charge limit for a Type I small appliance?

10 pounds
5 pounds or less
25 pounds
50 pounds

Question 15: What passing score is required for the open-book Type I exam?

70%
60%
84%
50%

Question 16: What recovery efficiency must be reached with system-dependent recovery on a working compressor?

70%
80%
100%
90%

Question 17: What recovery efficiency must self-contained recovery equipment reach when a compressor is dead?

90%
80%
50%
65%

Question 18: Which small-appliance refrigerant is flammable, adding fire risk to the usual safety concerns?

R-134a
R-600a
R-12
R-22

Question 19: True or False: A technician can skip PPE and refrigerant recovery on an appliance that is only being scrapped, not repaired.

True, disposal jobs have no safety requirements
True, PPE is only needed for repair jobs
True, recovery is optional for scrapped appliances
False, recovery and basic safety precautions still apply to appliances being scrapped

Question 20: What safety risk does brazing create if refrigerant has not been recovered from the lines first?

The refrigerant can break down into toxic byproducts, like phosgene gas
The brazing rod becomes magnetic
It has no safety impact at all
It only affects the appliance's paint finish

Question 21: What must happen to refrigerant before it can be legally resold to a new owner?

Nothing extra is required
It must be reclaimed to AHRI Standard 700 purity at a certified facility
It must simply be stored in a labeled cylinder
It must be diluted with air

Question 22: Who is legally allowed to purchase Class I and Class II refrigerants?

Only certified technicians
Any adult with cash
Only appliance store managers
Any licensed contractor, regardless of trade

Question 23: Since what date has it been illegal to knowingly vent CFC or HCFC refrigerants into the atmosphere?

November 15, 1995
July 1, 1992
January 1, 1990
November 15, 1993

Question 24: A technician with only a Type I certification is asked to service a residential heat pump. Should the technician accept this job?

Yes, Type I covers all residential equipment
Yes, as long as the technician wears PPE
Yes, heat pumps are considered small appliances
No, because a heat pump falls under Type II, not Type I

Question 25: Who is required to hold Type I certification?

Anyone who services, maintains, repairs, or disposes of small, hermetically sealed appliances that could release refrigerant
Only technicians who work exclusively outdoors
Only technicians who never touch electrical components
Only appliance delivery drivers

Study Tip: The EPA 608 exam is closed book. Memorize: recovery is required before opening any refrigerant system. Venting refrigerant is illegal. Know the ODP and GWP values for R-22, R-410A, R-134a, R-32, and R-454B.

EXAM CARD EPA 608

Questions25

Time limit25 min

Pass score70%

RegulationEPA Section 608

DifficultyIntermediate

Last reviewedJun 2026

Timer starts immediately. Progress is auto-saved.

Source: EPA Section 608 (40 CFR Part 82)