EPA 608 Type II Practice Test
Updated October 26, 2026
Type II certifies you to service and dispose of medium-, high- and very high-pressure appliances (other than small appliances and motor vehicle air conditioning), which includes most residential and light commercial air conditioning, heat pumps and commercial refrigeration. It’s the most common type for HVAC technicians. The Type II section has 25 multiple-choice questions, and you need Core too. Try the free questions below.
What Type II covers
- Required evacuation levels, which depend on the appliance’s pressure class, its charge size and when the recovery equipment was made. See the evacuation levels table.
- Leak repair rules for appliances with 50 pounds or more of ozone-depleting refrigerant.
- Leak detection, and signs of a leak.
- Recovery technique: liquid versus vapor recovery, and speeding up recovery.
- Safety around high pressures.
Free EPA 608 Type II practice questions
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Using recovery equipment made after November 15, 1993, to what level must a high-pressure appliance with a full charge under 200 pounds (for example, a residential R-410A split system) be evacuated before it is opened?Answer: AUnder EPA's Table 1, a high-pressure appliance or isolated component with a full charge under 200 pounds must be evacuated to 0 inches of mercury vacuum, whether the recovery equipment was made before or after November 15, 1993. Charges of 200 pounds or more need 4 or 10 inches, depending on the recovery equipment's age.
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An appliance has a full charge of 300 pounds of R-22 and is used for comfort cooling. Above what annual leak rate must leaks be repaired?Answer: BFor appliances with 50 pounds or more of ozone-depleting refrigerant, EPA's leak-rate thresholds are 10% for comfort cooling, 20% for commercial refrigeration and 30% for industrial process refrigeration. Leaks generally must be repaired within 30 days of adding refrigerant to an appliance over its threshold.
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Which is a sign of a possible refrigerant leak on a system?Answer: ARefrigerant carries oil through the system, so oil spots or residue around joints, fittings and coils are a common sign of a leak. Confirm it with an electronic leak detector, bubble solution or another approved method.
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To speed up recovery from a large system, which should usually be recovered first?Answer: BRecovering liquid first is much faster because liquid holds far more refrigerant than the same volume of vapor. After the liquid is removed, recover the remaining vapor to reach the required evacuation level.
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After evacuating a system to the required level, the technician isolates it and the pressure rises. Technician A says this can mean refrigerant is still boiling out of the oil. Technician B says it can mean there is a leak. Who is right?Answer: CBoth are right. A pressure rise after isolation means either refrigerant is still coming out of the oil or trapped places in the system, so recovery should continue, or air is leaking in. Wait a few minutes after reaching the required level and check whether pressure rises.
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High discharge (head) pressure with a normal refrigerant charge can be caused by:Answer: CAir and other non-condensables collect in the condenser and take up space where refrigerant should condense, raising head pressure and reducing efficiency. A dirty condenser or a failed condenser fan also raises head pressure.
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Before disposing of an appliance with more than 5 pounds of refrigerant, what is required?Answer: DBefore an appliance is opened for service or disposal, the refrigerant must be recovered to the required evacuation level with certified recovery equipment. Venting is prohibited.
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Which refrigerant is classified as a high-pressure refrigerant for EPA 608 purposes?Answer: AR-22, like R-410A and R-134a, is a high-pressure refrigerant, so equipment using it falls under Type II. R-11, R-123 and R-113 are low-pressure refrigerants used in chillers, which are covered by Type III.
Keep going
Pair this with the Core practice test, since you need both. If you’ll also work on chillers, try Type III for Universal certification.
Pass the EPA 608 exam on your first try
- All 168 questions across Core, Type I, Type II and Type III
- An explanation for every answer, with the rule or principle behind it
- Unlimited practice exams per section, scored like the real test (18 of 25 to pass)