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Free Practice Quiz Question List

5 Recovery Completion and Troubleshooting Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Recovery Completion and Troubleshooting, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: A reading of 0 psig means an appliance is at a deep vacuum.

  1. A

    True

  2. B

    False

02
Fill in the blank
1 point

Recovery removes refrigerant from equipment into an .

03
True or false
1 point

True or false: A recovery job is complete when enough time has passed and the recovery machine's inlet pressure has fallen.

  1. A

    True

  2. B

    False

04
Written response
1 point

For disposal of an appliance with a full charge of more than 5 pounds and less than 50 pounds, how many years must the specified EPA records be kept? Enter the number of years.

05
Choose one
1 point

What is the required evacuation level for a medium-pressure appliance with a full charge of 200 pounds or more, using recovery machinery manufactured or imported on or after November 15, 1993?

  1. A

    0 in. Hg vacuum

  2. B

    10 in. Hg vacuum

  3. C

    15 in. Hg vacuum

  4. D

    25 mm Hg absolute

06
Fill in the blank
1 point

Under the leak exception, the lowest attainable evacuation level for leaking portions must not exceed .

07
Written response
1 point

What is the required evacuation level for a low-pressure appliance using recovery machinery manufactured or imported on or after November 15, 1993? Enter the numeric value; the unit is mm Hg absolute.

08
Choose one
1 point

After you isolate an appliance, its pressure rises during stabilization. What is the appropriate response?

  1. A

    Open the circuit because the first pressure reading was sufficient.

  2. B

    Allow conditions to stabilize, investigate possible remaining refrigerant, and continue recovery as appropriate before verifying the required level again.

  3. C

    Vent refrigerant until the pressure stops rising.

  4. D

    Use the recovery machine's inlet gauge as the final verification.

09
Choose all
1 point

Recovery is unusually slow or stops early. Which checks are appropriate? Select all that apply.

  1. A

    Check for closed or incorrectly positioned valves.

  2. B

    Check for restricted hoses or filters.

  3. C

    Bypass a pressure switch to keep recovery going.

  4. D

    Check machine airflow and power supply.

  5. E

    Check whether the cylinder is full or overheated.

10
Choose all
1 point

Which practices help ensure a recovery cylinder is filled safely? Select all that apply.

  1. A

    Confirm the cylinder is intended and rated for recovery and is compatible with the refrigerant.

  2. B

    Estimate the fill by looking at the cylinder.

  3. C

    Check its tare weight and marked maximum gross weight.

  4. D

    Weigh the cylinder during and after recovery.

  5. E

    Assume every cylinder has the same safe refrigerant capacity.

11
Choose one
1 point

Which process cleans refrigerant for reuse in equipment owned by the same person?

  1. A

    Recovery

  2. B

    Recycling

  3. C

    Reclamation

  4. D

    Evacuation

12
Open ended
1 point

A technician cannot reach the required evacuation level on an appliance. Describe how the technician should investigate and, if a leak prevents the normal level, apply the regulatory exception and document the result.

13
True or false
1 point

True or false: A recovery job is complete if enough time has passed and the recovery machine's inlet pressure is falling, even if the appliance-side evacuation level has not been verified.

  1. A

    True

  2. B

    False

14
Choose one
1 point

An appliance-side gauge reads 0 psig. Which interpretation is correct?

  1. A

    It indicates a deep vacuum.

  2. B

    It indicates atmospheric pressure, not a vacuum.

  3. C

    It confirms all refrigerant has been removed.

  4. D

    It means the appliance is below atmospheric pressure.

15
Choose one
1 point

After you isolate an appliance, its pressure rises before the circuit is opened. What is the appropriate response?

  1. A

    Open the circuit immediately because the initial reading was adequate.

  2. B

    Vent refrigerant until the pressure stops rising.

  3. C

    Allow conditions to stabilize, then continue recovery and recheck as appropriate.

  4. D

    Treat the rebound as proof that the gauge is faulty.

16
Choose one
1 point

While recovering refrigerant into a cylinder, how should a technician avoid exceeding its permitted fill?

  1. A

    Estimate the refrigerant amount from the cylinder's appearance.

  2. B

    Weigh the cylinder and stay within its marked filling limit.

  3. C

    Use the same refrigerant capacity limit for every cylinder.

  4. D

    Stop weighing once the cylinder begins to feel warm.

17
Written response
1 point

Using the listed EPA evacuation levels for recovery machinery manufactured or imported on or after November 15, 1993, what evacuation level applies to a high-pressure appliance with a full charge of 250 lb?

18
Choose one
1 point

A recovered refrigerant's identity is uncertain and contamination is suspected. What should the technician do?

  1. A

    Keep it separate, identify the uncertainty, and arrange appropriate handling.

  2. B

    Mix it with a known refrigerant to dilute the contamination.

  3. C

    Treat it as clean refrigerant if its pressure seems normal.

  4. D

    Vent it to avoid storing an unidentified refrigerant.

19
Written response
1 point

What is the process called when refrigerant is cleaned for reuse in equipment owned by the same person?

20
Choose one
1 point

A technician plans to sell recovered refrigerant to a different owner. What must happen before resale under the stated Section 608 rules?

  1. A

    It may be resold without further processing if it was recovered safely.

  2. B

    It only needs to be recycled by the technician who recovered it.

  3. C

    It must be reclaimed by an EPA-certified reclaimer before resale.

  4. D

    It must always be destroyed before ownership can change.