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Radiological Protection Standards Flashcards

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

Read the first 7 Radiological Protection Standards flashcards as text

  1. Which EPA guidance establishes Protective Action Guides (PAGs) for nuclear incidents in the US?

    Answer: EPA PAG Manual (EPA-400/R-17/001)

    The EPA PAG Manual (EPA-400/R-17/001, 2017) establishes the Protective Action Guides for radiological incidents in the United States.

  2. Under ICRP Publication 103, the recommended annual effective dose limit for occupational workers is:

    Answer: 20 mSv averaged over 5 years, not exceeding 50 mSv in any year

    ICRP 103 recommends 20 mSv/year averaged over a defined 5-year period, with no single year exceeding 50 mSv.

  3. The concept of 'effective dose' combines organ doses with tissue weighting factors to represent:

    Answer: The total risk-equivalent uniform whole-body dose

    Effective dose uses tissue weighting factors to express the total radiation detriment as an equivalent uniform whole-body dose for risk comparison purposes.

  4. Under 10 CFR Part 20, the annual dose limit to members of the public from licensed operations is:

    Answer: 100 mrem (1 mSv)

    10 CFR 20.1301 limits the annual dose to individual members of the public to 100 mrem (1 mSv) from licensed operations.

  5. Which of the following correctly describes an 'Annual Limit on Intake' (ALI)?

    Answer: The quantity of a radionuclide that would result in an occupational dose equal to the annual limit

    The ALI is the activity of a radionuclide that, if taken into the body in a year, would result in a dose equal to the relevant annual occupational dose limit.

  6. The 'derived air concentration' (DAC) in 10 CFR Part 20 is based on:

    Answer: Breathing 2400 mL/min for 2000 working hours per year receiving one ALI

    The DAC is derived by dividing the ALI by the volume of air breathed in a working year (2.4 L/min × 2000 hr), giving the air concentration that delivers one ALI.

  7. Which regulation governs radiation protection standards for DOE contractor workers?

    Answer: 10 CFR Part 835

    10 CFR Part 835 (Occupational Radiation Protection) establishes radiation protection standards specifically for DOE and DOE contractor workers.