Practice Test Geeks(CFC) Chlorofluorocarbon Certification Practice Test
← All CFC Flashcard Decks

Refrigerant Cylinder & Storage Safety Flashcards

7 cards from real CFC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Refrigerant Cylinder & Storage Safety flashcards as text

  1. What is the primary purpose of the pressure-relief device on a refrigerant recovery cylinder?

    Answer: To automatically release pressure if it exceeds a safe threshold, preventing rupture

    The pressure-relief device (fusible plug or relief valve) protects the cylinder from catastrophic rupture by releasing pressure if it reaches a dangerous level.

  2. Under EPA Section 608 regulations, which cylinders are approved for recovering refrigerant in the field?

    Answer: DOT-approved recovery cylinders or system-dependent recovery

    EPA Section 608 requires refrigerant recovery into DOT-approved recovery cylinders or, in some cases, back into the system being serviced.

  3. Which statement about refillable refrigerant cylinders is CORRECT?

    Answer: They must be retested and recertified by the cylinder owner periodically per DOT requirements

    DOT regulations require periodic hydrostatic retest of refillable cylinders (typically every 5 years) to ensure structural integrity.

  4. What does the tare weight (TW) stamped on a refrigerant cylinder represent?

    Answer: The weight of the empty cylinder itself

    Tare weight is the weight of the empty cylinder, used as a baseline to calculate how much refrigerant has been added by weight.

  5. A technician notices frost forming on the outside of a refrigerant cylinder during recovery operations. This indicates:

    Answer: Liquid refrigerant is flashing inside the cylinder, cooling it — a normal occurrence during rapid filling

    Frost on the cylinder exterior during recovery is caused by latent heat absorption as liquid refrigerant evaporates inside — this is normal and not a safety concern.

  6. What is the maximum percentage of a recovery cylinder's rated capacity that should be filled with liquid refrigerant (by weight)?

    Answer: 80%

    Recovery cylinders should not be filled above 80% of their rated capacity by weight to allow for thermal expansion of the liquid refrigerant.

  7. Which of the following is NOT an acceptable method to move a heavy refrigerant cylinder across a shop floor?

    Answer: Dragging it across the floor on its side

    Dragging a cylinder on its side can damage the valve, rupture the fusible plug, or damage the cylinder itself — always use proper material handling equipment.