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7.11 - Practice Questions Set 2

Module: Type I Small Appliances
Format: 25-question closed-book EPA 608-style Type I practice set
Regulatory verification date: August 11, 2026
Purpose: Provide a second complete and independent Type I practice attempt, with greater use of short service scenarios while still covering the major Type I scope developed in Sections 7.1-7.8.

Instructions

Select the one best answer for each question.

Treat each question independently. Identify the controlling condition before choosing an answer, especially the appliance definition, recovery-equipment manufacture date, appliance-compressor condition, recovery method, access arrangement, refrigerant condition, or disposal role.

Complete this set without notes or the answer file if you are using it as an independent readiness check.

These are original EPA 608-style practice questions. They are not actual, leaked, or official EPA or certifying-provider examination questions.

Question 1

A dehumidifier is fully manufactured, charged, and hermetically sealed at the factory with a 4.5-pound refrigerant charge. For Section 608 certification purposes, it is MOST appropriately treated as:

A. A Type II appliance because dehumidifiers operate above atmospheric pressure

B. A Type III appliance because it removes moisture

C. A Type I small appliance

D. An MVAC-like appliance

Question 2

A technician is asked to service an air-conditioning unit installed on construction equipment. The unit uses an open-drive compressor and cools the operator’s cab. Which classification clue is MOST important?

A. It matches the MVAC-like appliance definition rather than the Type I small-appliance definition.

B. It is Type I whenever the refrigerant charge is below 5 pounds.

C. It is Type III because the equipment operates off-road.

D. It is a small appliance because the cab is a small space.

Question 3

Recovery equipment was manufactured on November 15, 1993, and the compressor in the small appliance is functioning. Under the percentage-recovery pathway, the required recovery is:

A. 70 percent

B. 80 percent

C. 100 percent

D. 90 percent

Question 4

A refrigerator was manufactured in 2025, but the recovery equipment being used was manufactured in 1992. Which date controls the Type I percentage-recovery pathway?

A. The appliance manufacture date, so the post-1993 pathway applies.

B. The recovery-equipment manufacture date, so the pre-November 15, 1993 pathway applies.

C. The date the refrigerant cylinder was manufactured.

D. The date the compressor last operated.

Question 5

A technician estimates that only 75 percent of the refrigerant has been recovered from a small appliance, but the appliance has been evacuated to 4 inches of Hg vacuum using the proper certified recovery arrangement. Which statement is correct?

A. The recovery requirement can be satisfied by the 4-in.-Hg-vacuum alternative even though the estimated percentage is below 80 percent.

B. The technician must always reach both 90 percent recovery and 4 inches of Hg vacuum.

C. Four inches of Hg vacuum is only a dehydration target and never a Type I recovery endpoint.

D. The appliance must be vented to atmospheric pressure before it can be opened.

Question 6

A technician connects a recovery device that depends on the small appliance’s operating compressor and system pressure to move refrigerant. The recovery device is classified as:

A. Self-contained recovery equipment

B. A refrigerant reclaimer

C. System-dependent recovery equipment

D. A recovery cylinder

Question 7

A system-dependent recovery procedure was started with the appliance compressor operating normally. During recovery, the compressor fails and can no longer pump. What is the BEST response?

A. Continue treating the procedure as an operating-compressor recovery without changing access or technique.

B. Reevaluate the recovery setup for the inoperative-compressor condition and use the appropriate failed-compressor recovery technique.

C. Vent the remaining refrigerant because the compressor failure ends the recovery requirement.

D. Disconnect the low-pressure side permanently and continue only through the compressor shell.

Question 8

A small-appliance compressor is inoperative. A manifold is used with the blue hose connected to a low-side access point and the red hose connected to a high-side access point. Why is this arrangement appropriate for system-dependent recovery?

A. It allows the red hose to act as an electrical conductor for the compressor.

B. It makes the failed compressor operate as a self-contained recovery machine.

C. It eliminates the need for a recovery container.

D. It provides access to both sides of the system when the compressor cannot move refrigerant through the circuit.

Question 9

During recovery from an inoperative refrigerator, pressure stops falling and refrigerant is suspected to remain dissolved in compressor oil. Which action is MOST consistent with Type I recovery guidance?

A. Drill a hole in the compressor shell.

B. Heat the shell with an open flame until the oil boils.

C. Apply controlled heat and sharply tap the compressor as an aid to releasing trapped refrigerant, without damaging the shell.

D. Cut the discharge line and allow the remaining refrigerant to escape.

Question 10

A domestic freezer with an inoperative compressor has liquid refrigerant trapped in a very cold evaporator. If the appliance design and service procedure permit it, which action can help recovery?

A. Use the built-in defrost heater to provide controlled heat and promote vaporization.

B. Bypass all electrical safety controls and overheat the evaporator.

C. Add oxygen to raise the pressure.

D. Close both recovery access points and wait for the refrigerant to vent naturally.

Question 11

Which statement BEST distinguishes the special Type I vacuum-pump recovery example from ordinary evacuation work?

A. A vacuum pump may always replace certified self-contained recovery equipment and discharge refrigerant outdoors.

B. A vacuum pump is considered a reusable recovery cylinder.

C. The vacuum pump is used only to add liquid refrigerant to the appliance.

D. In the special failed-compressor system-dependent arrangement, a vacuum pump may be used with a nonpressurized recovery container to capture refrigerant.

Question 12

A technician finds a suitable process stub, but the available piercing valve is the wrong diameter for the tubing. What should the technician do?

A. Install it anyway and compensate by overtightening.

B. Select a fitting or access method matched to the tubing diameter and material.

C. Pierce the capillary tube because its small diameter will seal more easily.

D. Flatten the tubing until it matches the valve.

Question 13

A technician proposes leaving a temporary solderless access fitting permanently installed after completing service on a small appliance. Which response is BEST?

A. Current Type I test topics expect the temporary solderless fitting to be removed at the conclusion of service, followed by proper resealing and leak checking.

B. Leaving the fitting permanently installed is required on every small appliance.

C. The fitting should be opened to atmosphere before the technician leaves.

D. The fitting should be left installed only because it changes the appliance into a Type II system.

Question 14

A technician is trying to identify refrigerant in an older small appliance. Which information is MOST useful as a technical consistency check after reviewing the appliance identification information?

A. The color of the appliance cabinet

B. The length of the power cord

C. The refrigerant pressure-temperature relationship at a known stabilized temperature

D. The color of an unrelated refrigerant cylinder

Question 15

Why should a recovery cylinder be allowed to reach a known, stable temperature before its pressure is compared with a refrigerant pressure-temperature relationship?

A. Stable temperature guarantees that the cylinder is exactly 80 percent full.

B. Pressure-temperature relationships apply only while the recovery machine is running.

C. Temperature is irrelevant because every refrigerant has the same vapor pressure.

D. A meaningful pressure-temperature comparison requires an accurate refrigerant temperature; the comparison can then help reveal abnormal pressure such as that caused by noncondensables.

Question 16

A self-contained recovery machine manufactured in 2025 is connected to a small appliance with a failed appliance compressor. Which statement is correct?

A. The recovery-machine compressor makes the appliance compressor legally “functioning,” so 90 percent always applies.

B. The recovery machine can remove refrigerant without appliance-compressor assistance, but the failed appliance compressor still places the percentage pathway in the 80-percent condition.

C. A failed appliance compressor prohibits use of self-contained recovery equipment.

D. No recovery endpoint applies when the recovery machine has its own compressor.

Question 17

A recovery cylinder is warm and its pressure is making recovery slow. Which statement about safely cooling the cylinder is correct?

A. Cooling permits the cylinder to exceed its allowable refrigerant mass.

B. Cooling eliminates the need to monitor cylinder weight.

C. Cooling can lower cylinder pressure and improve recovery, but it does not change the applicable fill limit.

D. Cooling converts a disposable cylinder into a reusable recovery cylinder.

Question 18

A recovery machine shuts down on high pressure immediately after the technician starts recovery. The recovery-cylinder valve in the discharge path is found closed. What is the BEST corrective action?

A. Verify the correct hose and valve arrangement and establish the proper open flow path before restarting.

B. Bypass the machine’s high-pressure safety control.

C. Heat the recovery cylinder to increase pressure.

D. Vent refrigerant through the machine outlet.

Question 19

A technician finishes recovering R-134a and then prepares the same recovery machine for a different refrigerant. What should be done to avoid contaminating the next refrigerant?

A. Leave residual R-134a in the machine because a small amount cannot affect the next refrigerant.

B. Follow the recovery-machine manufacturer’s clearing procedure before changing refrigerants.

C. Mix the next refrigerant with the R-134a in the same cylinder.

D. Purge the recovery machine by intentionally venting refrigerant to atmosphere.

Question 20

Which recovery-speed practice presents the GREATEST safety concern when refrigerant may still be present in the appliance?

A. Using controlled manufacturer-appropriate heat

B. Using an approved defrost heater when the procedure allows it

C. Allowing a cold component to warm naturally

D. Heating refrigerant-containing tubing with an open flame

Question 21

An employee is allowed to recover refrigerant from discarded household refrigerators solely for disposal under the small-appliance disposal certification exception. The same employee is then asked to replace a compressor on a charged refrigerator. Which statement is correct?

A. The disposal-only certification exception does not authorize ordinary compressor-replacement service; the service activity requires the appropriate technician certification and recovery procedure.

B. The employee may replace the compressor without recovery because the appliance is small.

C. The employee may vent the refrigerant because the old compressor is defective.

D. The disposal exception converts the employee’s status to Universal certification.

Question 22

A refrigerator is damaged accidentally by a forklift before reaching the final processor, and all refrigerant escapes so recovery is no longer possible. Which documentation can support the leaked-out pathway?

A. A note stating that the refrigerant lines were deliberately cut to empty the appliance

B. A colored sticker with no signed statement

C. A signed statement that the refrigerant leaked out before delivery because of the accident and recovery is not possible

D. No documentation of any kind

Question 23

A retailer regularly delivers discarded small appliances to the same scrap recycler. Which EPA safe-disposal verification method is specifically suited to this regular commercial relationship?

A. A verbal promise from each customer with no records

B. Deliberately cutting the refrigerant lines before shipment

C. Replacing the refrigerant with nitrogen before delivery

D. A qualifying signed contract between the supplier and final processor addressing proper refrigerant recovery

Question 24

An EPA Type I test-topic question compares R-12 with R-134a. Which statement is correct?

A. R-12 and R-134a are both CFC refrigerants.

B. R-12 is a CFC, while R-134a is an HFC commonly cited as a likely R-12 substitute.

C. R-134a is an HCFC that contains chlorine.

D. R-12 is an HFO and R-134a is ammonia.

Question 25

The recovery-machine instructions for a particular direct-recovery procedure specify connecting the machine outlet to the recovery cylinder’s liquid port. The technician’s yellow hose would reach the vapor port more easily. What should the technician do?

A. Follow the recovery-machine instructions and use the specified liquid port.

B. Use the vapor port because hose convenience controls the connection.

C. Select the cylinder port only by hose color.

D. Connect both cylinder ports to atmosphere before recovery.

References

Current Regulatory and EPA Sources

Practice-Style References Reviewed

  • International Training Institute, EPA Section 608 Study Guide, Type I section and practice-quiz style.
  • Rex Miller and Mark R. Miller, HVAC Licensing Study Guide, 3rd ed., multiple-choice examination and test-taking style.