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EPA 608 NEC 2023

EPA 608 Type I Practice Test 10

This final test mixes every major Type I topic into one review: small appliance identification, the open-book option, recovery efficiency, refrigerant types, disposal rules, brazing safety, certification scope, and recovery vs recycling vs reclaiming, with extra scenario-based questions.

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Frequently Asked Questions

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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: This mixed review pulls together everything from the earlier tests. If a question stumps you, think back to the two-part small appliance rule, the 90%/80% recovery split, and the recover-before-disposal rule. Those three ideas answer a huge share of Type I questions.

25

Questions

25 min

Time

70%

Pass

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EPA 608 Type I Practice Test 10 — Question List

Question 1: What two conditions must both be true for a system to count as a Type I small appliance?

It must be hermetically sealed AND hold 5 pounds or less of refrigerant
It must use service valves AND hold more than 5 pounds
It must be installed outdoors AND hold exactly 10 pounds
It must have a remote condenser AND no compressor

Question 2: A technician is called to a home to fix a window air conditioner. It is welded shut and holds a small refrigerant charge. What certification applies?

Type II
Type I
Type III
No certification is required

Question 3: What passing score applies to the open-book version of the Type I exam?

70%
60%
84%
50%

Question 4: A technician feels well prepared and does not want the higher passing score that comes with the open-book option. Which format should this technician choose?

Open-book, because reference material always helps
Either format works exactly the same way
Neither format is available for Type I
Closed-book, since it only requires 70% instead of 84%

Question 5: What recovery efficiency must be reached using system-dependent recovery when the appliance compressor is running?

90%
80%
70%
100%

Question 6: What recovery efficiency must be reached using self-contained recovery equipment when the compressor is not operating?

90%
80%
60%
50%

Question 7: A technician arrives to recover refrigerant from a freezer whose compressor burned out months ago. Which method and efficiency level apply?

System-dependent recovery at 90%
System-dependent recovery at 80%
Self-contained recovery at 80%
Self-contained recovery at 90%

Question 8: Which refrigerant is non-flammable and was widely used in household refrigerators from the mid-1990s through the 2010s?

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

Question 9: Which refrigerant is flammable and requires a technician to use spark-free tools and good ventilation?

R-600a
R-134a
R-12
R-410A

Question 10: A technician needs to braze a line on a refrigerator that uses R-600a. What must be confirmed first, beyond the usual recovery step?

That the refrigerator is unplugged only
That the system is fully evacuated or purged, because of the added ignition risk
That the refrigerant has been dyed a bright color
That the compressor is still running

Question 11: A technician is replacing a failed household refrigerator that still has refrigerant in it. What must happen before it is hauled away?

Nothing, the charge is too small to matter
The refrigerant must be recovered
The refrigerant should be vented slowly outdoors
Only the power cord needs to be cut

Question 12: Does the recovery-before-disposal rule apply only to repair technicians, or also to appliance recyclers and disposal programs?

Only repair technicians
Only appliance recyclers
Only municipal disposal programs
It applies to technicians, recyclers, and disposal programs alike

Question 13: True or False: Because Type I appliances hold so little refrigerant, there is a small-charge exception to the disposal recovery rule.

False, there is no small-charge exception
True, charges under 2 pounds are exempt
True, but only for R-12 systems
True, appliances under 5 pounds are always exempt

Question 14: What toxic gas can form if refrigerant left in a line is exposed to an open flame during brazing?

Carbon dioxide
Phosgene gas
Nitrogen
Helium

Question 15: What must happen before a technician brazes a line on a small sealed system?

The appliance must be under warranty
The compressor must be running
The refrigerant must be fully recovered and the system evacuated
Nothing extra is required

Question 16: Who is legally allowed to purchase Class I and Class II refrigerants?

Any adult with a receipt
Only appliance store employees
Any business with a tax ID
Only certified technicians

Question 17: What kind of work does a Type I certification cover?

Small-appliance work only
All refrigeration and air conditioning equipment
Only motor vehicle air conditioning
Only industrial process refrigeration

Question 18: An apprentice without any EPA 608 certification wants to buy refrigerant, using a supervisor's certification number. Is this allowed?

Yes, as long as the supervisor approves it in writing
No, certification is personal and cannot be used by someone else
Yes, apprentices are automatically covered by their supervisor
Yes, for their first 90 days on the job

Question 19: Which process is the only legal way to prepare refrigerant for resale to a new owner?

Recovery
Recycling
Reclaiming
Venting

Question 20: What does "recovery" mean when talking about refrigerant?

Purifying refrigerant to AHRI Standard 700 purity
Cleaning refrigerant on-site for reuse
Selling refrigerant to a new customer
Removing refrigerant from a system and storing it, with no cleaning required

Question 21: What protective equipment should a technician wear when connecting recovery hoses to a refrigerant system?

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

Question 22: Why is good ventilation important when working with refrigerant in a small, enclosed space?

It only matters for appearance
A refrigerant leak can displace the oxygen in the air, creating a risk of suffocation
Refrigerant smells bad without it
It has no effect on technician safety

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

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

Question 24: Who is required to hold Type I certification?

Only appliance store cashiers
Only technicians working on central air systems
No one, small appliances are unregulated
Anyone who services, maintains, repairs, or disposes of small, hermetically sealed appliances that could release refrigerant

Question 25: A technician uses self-contained recovery equipment to reach 80% recovery efficiency on a dead-compressor refrigerator, then prepares to scrap it. Is this the correct process?

Yes, this is the correct process
No, 90% efficiency is always required before scrapping
No, dead-compressor appliances can never be legally scrapped
No, the refrigerant must also be reclaimed before scrapping is allowed

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)