Practice Test Geeks(RSES) Refrigeration Service Engineers Society Certification Practice Test
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Code 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.

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  1. Under UL 984 and ASHRAE 15, where must pressure relief device discharge outlets be piped to on systems using toxic refrigerants?

    Answer: To a purge unit or treatment system

    Toxic refrigerant relief outlets must discharge to a treatment or recovery system rather than the atmosphere or occupied spaces.

  2. When is a hydrostatic pressure test specifically prohibited on a refrigeration system under ASHRAE 15?

    Answer: When moisture contamination from water could damage the system or create hazards

    Hydrostatic testing is prohibited when water contamination would create safety hazards or damage system components, such as in systems using refrigerants that react with water.

  3. What must a technician do if they purchase more than 2 lbs of a non-exempt refrigerant in a container for resale?

    Answer: Hold a valid EPA Section 608 certification and only sell to certified technicians

    EPA rules require that refrigerant sold in containers over 2 lbs can only be purchased by and sold to EPA Section 608 certified technicians.

  4. What is the code-required color for refrigerant piping carrying R-717 (ammonia) per IIAR standards?

    Answer: Yellow

    IIAR (International Institute of Ammonia Refrigeration) standards require ammonia refrigerant piping to be painted yellow for identification.

  5. Under EPA regulations, what is the allowable leak rate trigger for industrial process refrigeration equipment with over 50 lbs of charge before repair is required?

    Answer: 30% per year

    Industrial process refrigeration with more than 50 lbs of refrigerant must be repaired if the annual leak rate exceeds 30%, a higher threshold than commercial refrigeration.

  6. Which code body publishes the standards specifically for ammonia refrigeration piping systems used in industrial applications?

    Answer: IIAR

    The International Institute of Ammonia Refrigeration (IIAR) publishes IIAR 2 and related standards governing ammonia refrigeration system safety and design.

  7. A pressure vessel used in a refrigeration system must comply with which code for design, fabrication, and inspection in the United States?

    Answer: ASME Boiler and Pressure Vessel Code Section VIII

    Refrigerant pressure vessels must be designed and stamped in accordance with ASME BPVC Section VIII, Division 1, as required by ASHRAE 15 and most state mechanical codes.