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Free Practice Quiz Question List

5 Refrigerant Recovery and Practical Review Online Quiz Questions

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

20 questions
01
Written response
1 point

What term describes removing refrigerant from an appliance and storing it in an external container without requiring cleaning or testing?

02
Fill in the blank
1 point

A recovery cylinder is a pressure vessel, not a .

03
True or false
1 point

Under Section 608, recycled refrigerant from stationary equipment may be reused in equipment owned by the same person, but recycling does not provide the purity verification required for reclamation.

  1. A

    True

  2. B

    False

04
Choose one
1 point

A contractor recovers clean refrigerant from a customer's stationary appliance. The contractor wants to sell it to a different owner. What must generally happen first?

  1. A

    Sell it because it appears clean.

  2. B

    Have it reclaimed by an EPA-certified reclaimer before sale to the new owner.

  3. C

    Filter it on site and sell it as reclaimed refrigerant.

  4. D

    Mix it with new refrigerant before sale.

05
Written response
1 point

Refrigerant is unknown or may be mixed. How should it be handled relative to a cylinder containing known refrigerant? Enter one verb.

06
Fill in the blank
1 point

For servicing or disposal, recover to the evacuation level required for the and applicable rules; do not assume one target applies to every appliance.

07
Choose one
1 point

A technician is servicing a stationary air-conditioning appliance. Which recovery machine should the technician use?

  1. A

    Any machine that can connect to the hoses is acceptable.

  2. B

    Use whichever recovery machine is available, even if its certification is for another appliance type.

  3. C

    Use recovery equipment certified for the applicable use and suitable for that refrigerant.

  4. D

    Use recycling equipment instead, because it cleans the refrigerant during recovery.

08
True or false
1 point

Motor vehicle air conditioners are generally handled under Section 609 requirements rather than the ordinary stationary-equipment workflow described here.

  1. A

    True

  2. B

    False

09
Choose all
1 point

Before recovering refrigerant, which actions are appropriate when preparing the work area? Select all that apply.

  1. A

    Read the equipment label and assess whether the refrigerant is flammable or presents other special hazards.

  2. B

    Provide ventilation, keep ignition sources away when required, and use appropriate eye and hand protection.

  3. C

    Assume an unknown refrigerant is nonflammable unless a hazard becomes apparent during recovery.

  4. D

    Follow the safety instructions for the equipment and refrigerant.

10
Choose all
1 point

Which practices help manage a recovery cylinder safely during and after filling? Select all that apply.

  1. A

    Check the cylinder markings, tare weight, rated capacity, and any fill-control device.

  2. B

    Weigh the cylinder before and during recovery, and stop at its applicable maximum fill weight.

  3. C

    Continue filling while pressure appears acceptable, even if the maximum fill weight may have been reached.

  4. D

    Secure the cylinder against falling and keep it away from excessive heat.

11
Choose one
1 point

During recovery, a cylinder becomes warm and its pressure is high. What should the technician do?

  1. A

    Release refrigerant until the pressure drops, then resume work.

  2. B

    Cool the cylinder by placing it in water and continue filling.

  3. C

    Do not vent it; keep it away from heat and follow safe handling procedures, stopping work and following the emergency procedure if it appears unsafe.

  4. D

    Open the cylinder valve briefly to confirm whether pressure is still rising.

12
Written response
1 point

What tool should a technician use to measure a recovery cylinder's mass before and during recovery?

13
Choose one
1 point

When closing out a recovery job, what should the technician do about refrigerant trapped in the hoses?

  1. A

    Open the hose connection quickly so the trapped refrigerant escapes before the hoses are stored.

  2. B

    Close the valves and prevent refrigerant trapped in the hoses from being released.

  3. C

    Leave the valves open so pressure can equalize with the work area.

  4. D

    Vent the hose contents only if the recovery cylinder is full.

14
Open ended
1 point

A technician is about to recover refrigerant from a stationary appliance whose label identifies a flammable refrigerant. Describe a safe recovery plan from preparation through cylinder closeout. Explain why a setup that is merely able to connect to the hoses may not be suitable.

15
Written response
1 point

Before beginning recovery, what should a technician read to identify the refrigerant and assess its hazards?

16
Choose one
1 point

A batch of used refrigerant is reprocessed to applicable purity specifications, and its quality is verified by the prescribed analytical method. What level of refrigerant handling is this?

  1. A

    Filtering recovered refrigerant for reuse without verifying its purity

  2. B

    Reprocessing refrigerant to applicable purity specifications and verifying its quality

  3. C

    Removing refrigerant from an appliance and storing it without cleaning or testing

  4. D

    Combining different refrigerants to make a reusable charge

17
Choose one
1 point

A recovery machine’s fittings connect to a stationary appliance, but its certification and refrigerant suitability have not been checked. What should the technician do?

  1. A

    Any machine that fits the hoses, provided the technician is certified

  2. B

    Any machine that has previously been used on stationary equipment

  3. C

    Equipment certified for the applicable use and suitable for the refrigerant

  4. D

    Only equipment that can recover liquid, regardless of its certification

18
Choose one
1 point

A contractor has recovered refrigerant from a customer’s stationary appliance. The refrigerant appears clean, but the contractor wants to sell it to a different owner. What must generally happen first?

  1. A

    Have it reclaimed by an EPA-certified reclaimer before selling it to the new owner

  2. B

    Sell it as usable refrigerant because it appears clean

  3. C

    Filter it and sell it without verifying its purity

  4. D

    Mix it with refrigerant owned by the new customer

19
Choose one
1 point

A refrigerant’s label indicates a flammability hazard. Which preparation best follows the safe-work guidance before recovery begins?

  1. A

    Begin recovery immediately, then assess ventilation if a problem occurs

  2. B

    Follow the safety instructions, provide ventilation, and keep ignition sources away when required

  3. C

    Rely on cylinder pressure to determine whether the work area is safe

  4. D

    Use eye protection only; refrigerant hazards do not require other precautions

20
True or false
1 point

A recovery cylinder is warm and its pressure is high. The technician should release refrigerant to reduce the pressure.

  1. A

    True

  2. B

    False