Practice Test Geeks(RSES) Refrigeration Service Engineers Society Certification Practice Test
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Safety Practices & Regulatory Compliance Flashcards

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

Read the first 7 Safety Practices & Regulatory Compliance flashcards as text

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

    Answer: To prevent catastrophic rupture if internal pressure exceeds safe limits

    Pressure-relief devices (fusible plugs or relief valves) protect cylinders from explosive rupture if exposed to heat or fire by venting before pressure becomes catastrophic.

  2. According to ASHRAE 34, what refrigerant safety group classification indicates the highest flammability?

    Answer: A3

    Group A3 indicates lower toxicity (A) and higher flammability (3), representing the highest flammability classification in the ASHRAE 34 safety group system.

  3. A technician is recovering refrigerant from a system with a large leak. What precaution is MOST important?

    Answer: Ensure adequate ventilation to prevent oxygen displacement

    Large refrigerant leaks can displace oxygen in confined spaces, creating an asphyxiation hazard, so adequate ventilation is the top safety priority.

  4. Which document must accompany a DOT shipment of used refrigerant being transported for reclamation?

    Answer: A bill of lading identifying the contents and hazard class

    DOT regulations require a bill of lading (shipping paper) that identifies the material, hazard class, UN number, and quantity for hazardous material shipments including used refrigerants.

  5. What is the 'right-to-know' law that requires employers to inform workers about hazardous chemicals in the workplace?

    Answer: OSHA 29 CFR 1910.1200 (HazCom)

    OSHA's Hazard Communication Standard (29 CFR 1910.1200), often called the Right-to-Know law, requires employers to inform and train workers about chemical hazards.

  6. Under EPA regulations, what is the minimum recovery efficiency required when recovering refrigerant from a system with a hermetic compressor and charge less than 200 lbs (manufactured before November 15, 1993)?

    Answer: 80%

    EPA requires 80% recovery efficiency for systems with hermetic compressors and charges under 200 lbs manufactured before November 15, 1993.

  7. Which personal protective equipment (PPE) is specifically recommended when handling liquid refrigerant due to the risk of frostbite?

    Answer: Insulated cryogenic gloves and face shield

    Liquid refrigerants can cause severe frostbite on contact; cryogenic insulated gloves and a face shield protect skin and eyes from splashing liquid refrigerant.