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21 Type I — Small Appliances Practice Questions & Answers

Every Type I — Small Appliances practice question from the EPA 608 Certification Practice Test, with the correct answer and a short explanation.

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  1. 1. Under EPA Section 608, a 'small appliance' is a product fully manufactured, charged, and hermetically sealed at the factory with how much refrigerant?

    • A.50 pounds or less
    • B.15 pounds or less
    • C.5 pounds or less✓ Answer
    • D.10 pounds or less

    The regulatory definition of a small appliance is a hermetically sealed system that is factory-charged with 5 pounds or less of refrigerant, which is why Type I covers products like refrigerators and window AC units.

    Source: 40 CFR 82.152 (definition of small appliance)Report a problem with this question

  2. 2. Which of the following is classified as a small appliance for Type I purposes?

    • A.A rooftop packaged unit for an office
    • B.A supermarket rack refrigeration system
    • C.A 100-ton building chiller
    • D.A household refrigerator✓ Answer

    A household refrigerator is hermetically sealed and factory-charged with a small charge, meeting the small-appliance definition, whereas the other systems are large, field-charged appliances handled under Type II or Type III.

    Source: 40 CFR 82.152 (small appliance examples)Report a problem with this question

  3. 3. When using recovery equipment on a small appliance with a functioning (operating) compressor, what percentage of the refrigerant must be recovered?

    • A.85%
    • B.100%
    • C.90%✓ Answer
    • D.80%

    EPA requires recovery equipment to remove 90% of the refrigerant from a small appliance when its compressor is operating, because a working compressor helps circulate and push out the charge.

    Source: 40 CFR 82.158 (small-appliance recovery efficiency)Report a problem with this question

  4. 4. When the compressor of a small appliance is NOT functioning, recovery equipment must recover at least what percentage of the refrigerant?

    • A.80%✓ Answer
    • B.70%
    • C.90%
    • D.95%

    The standard drops to 80% when the compressor is not operating, because without a working compressor it is harder to move trapped refrigerant out of the sealed system.

    Source: 40 CFR 82.158 (small-appliance recovery efficiency)Report a problem with this question

  5. 5. Instead of meeting the percentage-recovery standard, recovery equipment used on a small appliance may recover refrigerant by evacuating the system to what vacuum level?

    • A.4 inches of mercury vacuum✓ Answer
    • B.0 psig
    • C.500 microns
    • D.10 inches of mercury vacuum

    The rule allows an alternative to the 90%/80% standard: evacuating the small appliance to 4 inches of mercury vacuum, which reliably removes the bulk of the charge.

    Source: 40 CFR 82.158 (small-appliance recovery efficiency)Report a problem with this question

  6. 6. System-dependent (passive) recovery equipment removes refrigerant from a small appliance by relying on:

    • A.An external compressor built into the recovery unit
    • B.Nitrogen pushing the refrigerant out
    • C.Gravity draining the liquid refrigerant
    • D.The appliance's own compressor and/or internal pressure✓ Answer

    Passive (system-dependent) equipment has no compressor of its own; it uses the appliance's own compressor and internal system pressure to move refrigerant into the recovery cylinder.

    Source: 40 CFR 82.152 (system-dependent recovery definition)Report a problem with this question

  7. 7. Self-contained (active) recovery equipment differs from passive equipment because it:

    • A.Requires the appliance's compressor to run
    • B.Can only be used on appliances larger than 200 pounds
    • C.Does not need to be certified
    • D.Has its own compressor/pump to pull refrigerant out independently of the appliance✓ Answer

    Self-contained (active) equipment contains its own compressor or pump, so it can pull refrigerant out of an appliance even when the appliance's compressor is inoperative.

    Source: 40 CFR 82.152 (self-contained recovery definition)Report a problem with this question

  8. 8. A small appliance's compressor is burned out and will not run. Which recovery method is appropriate?

    • A.Venting is allowed because the compressor is dead
    • B.No recovery is needed
    • C.Self-contained (active) recovery equipment✓ Answer
    • D.System-dependent (passive) recovery equipment

    Passive recovery depends on the appliance's own compressor to move refrigerant, so with a dead compressor only self-contained (active) equipment can pull the charge out.

    Source: 40 CFR 82.156 (recovery requirements)Report a problem with this question

  9. 9. System-dependent (passive) recovery equipment may only be used on appliances containing how much refrigerant?

    • A.50 pounds or less
    • B.Any amount
    • C.15 pounds or less✓ Answer
    • D.5 pounds or less

    EPA restricts system-dependent (passive) recovery to appliances normally containing 15 pounds or less of refrigerant, because passive methods are ineffective at fully evacuating larger charges.

    Source: 40 CFR 82.156 (system-dependent recovery limitation)Report a problem with this question

  10. 10. For appliances that reach the end of their life, who is responsible for ensuring the refrigerant has been recovered?

    • A.The final person in the disposal chain must recover it or obtain a signed statement that it was recovered✓ Answer
    • B.The EPA sends an inspector to each unit
    • C.Only the original manufacturer
    • D.No one; end-of-life units are unregulated

    EPA places responsibility on the final person in the disposal chain (such as a scrap recycler) to either recover the refrigerant themselves or obtain a signed statement verifying prior recovery.

    Source: 40 CFR 82.156(f) (verification at disposal)Report a problem with this question

  11. 11. EPA Section 608 Type I certification specifically authorizes a technician to service:

    • A.High-pressure appliances only
    • B.Small appliances✓ Answer
    • C.Motor vehicle air conditioners
    • D.Any appliance regardless of size

    Type I certification is the category defined for servicing small appliances; high-pressure and low-pressure appliances fall under Type II and Type III respectively.

    Source: 40 CFR 82.161 (Type I certification)Report a problem with this question

  12. 12. To connect recovery equipment to a hermetically sealed small appliance that has no service valves, a technician typically installs:

    • A.A brand-new compressor
    • B.A relief valve on the condenser
    • C.A flare fitting on the evaporator
    • D.A piercing (saddle) access valve on the process tube✓ Answer

    Because sealed systems have no service ports, technicians install a piercing/saddle access valve (usually on the process tube) to create a connection point for recovery.

    Source: EPA Section 608 Type I service practices (access valves)Report a problem with this question

  13. 13. During service of a small appliance, intentionally releasing (venting) CFC or HCFC refrigerant to the atmosphere is:

    • A.Prohibited under the Clean Air Act✓ Answer
    • B.Allowed for HCFCs only
    • C.Allowed if less than 5 pounds
    • D.Allowed if the compressor is not running

    Section 608(c) of the Clean Air Act bans the knowing venting of ozone-depleting refrigerants (and their substitutes) during service, maintenance, repair, or disposal.

    Source: Clean Air Act §608(c) (venting prohibition)Report a problem with this question

  14. 14. The term 'hermetically sealed' as applied to a small appliance means the refrigerant circuit is:

    • A.Sealed by brazing or welding with no service ports, and charged at the factory✓ Answer
    • B.Open to the atmosphere through a relief valve
    • C.Sealed with removable bolts for field charging
    • D.Charged by the installer on site

    Hermetically sealed means the tubing is closed by brazing/welding with no service valves, and the system is charged at the factory, which is why access requires piercing valves.

    Source: 40 CFR 82.152 (hermetically sealed / small appliance)Report a problem with this question

  15. 15. Refrigerant recovered from a small appliance may be returned to service WITHOUT being reclaimed only if it is:

    • A.Sold to any new owner
    • B.Mixed with a different refrigerant first
    • C.Always, with no restrictions
    • D.Used in an appliance owned by the same person✓ Answer

    Recovered (non-reclaimed) refrigerant may be reused only in appliances owned by the same person; before it can be sold to a new owner it must be reclaimed to AHRI 700 purity.

    Source: 40 CFR 82.155 (reclamation requirement)Report a problem with this question

  16. 16. A recommended technique to speed up and improve recovery from a small sealed system is to:

    • A.Add nitrogen before recovering
    • B.Recover only from the suction line
    • C.Access both the high (discharge) and low (suction) sides of the system✓ Answer
    • D.Freeze the recovery cylinder to zero pressure

    Accessing both the high and low sides gives refrigerant multiple exit paths and helps clear trapped liquid, which reduces recovery time and improves the amount removed.

    Source: EPA Section 608 Type I recovery best practicesReport a problem with this question

  17. 17. If a small appliance requires opening the sealed refrigerant circuit for repair, the technician must first:

    • A.Cut the tubing without recovering
    • B.Add more refrigerant to raise pressure
    • C.Vent the refrigerant since the system is open anyway
    • D.Recover the refrigerant with certified recovery equipment✓ Answer

    Because opening the circuit would otherwise release refrigerant, the technician must recover the charge with certified equipment before breaking into the sealed system.

    Source: 40 CFR 82.156 (recovery before opening the system)Report a problem with this question

  18. 18. Who is permitted to open a small appliance's sealed system and recover its refrigerant?

    • A.Any person over 18
    • B.A technician certified under Section 608 (Type I or Universal)✓ Answer
    • C.Only the appliance's manufacturer
    • D.Anyone, since small appliances are exempt

    Only a technician certified under Section 608 (Type I covers small appliances, and a Universal certification includes them) may open a sealed system and recover the refrigerant.

    Source: 40 CFR 82.161 (technician certification requirement)Report a problem with this question

  19. 19. Recovery equipment used on small appliances must be:

    • A.Exempt from any standard
    • B.Certified/approved to meet EPA recovery-efficiency standards✓ Answer
    • C.Any vacuum pump from a hardware store
    • D.Homemade to save cost

    Recovery equipment must be certified to meet EPA's recovery-efficiency standards (the 90%/80% or 4-inch-Hg requirement), ensuring it actually captures the required amount of refrigerant.

    Source: 40 CFR 82.158 (recovery equipment certification)Report a problem with this question

  20. 20. Which appliance would NOT be covered by Type I small-appliance rules?

    • A.A central residential split air-conditioning system✓ Answer
    • B.A water cooler
    • C.A window air conditioner
    • D.A dehumidifier

    A central split air-conditioning system is field-charged and not hermetically sealed as a unit, so it is not a small appliance; window units, dehumidifiers, and water coolers are.

    Source: 40 CFR 82.152 (small appliance definition and examples)Report a problem with this question

  21. 21. The primary environmental reason Section 608 requires recovering refrigerant from small appliances is to:

    • A.Reduce noise pollution
    • B.Prevent water contamination only
    • C.Recover valuable copper
    • D.Prevent ozone-depleting and greenhouse refrigerants from being released to the atmosphere✓ Answer

    Section 608 exists to protect the ozone layer and climate by keeping ozone-depleting substances and their high-GWP substitutes out of the atmosphere during service and disposal.

    Source: Clean Air Act §608 (purpose of the refrigerant management program)Report a problem with this question

Practice questions modeled on the EPA Section 608 Technician Certification content (Clean Air Act §608; 40 CFR Part 82). Not affiliated with or endorsed by the U.S. Environmental Protection Agency or any approved certifying organization. Study the official EPA program materials before testing. Official EPA 608 →