Health Physics Regulations and Standards Flashcards
7 cards from real CHP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Health Physics Regulations and Standards flashcards as text
Under ICRP Publication 103 recommendations, what is the recommended annual effective dose limit for occupational workers?
Answer: 20 mSv/year averaged over 5 years (not exceeding 50 mSv in any single year)
ICRP 103 recommends a dose limit of 20 mSv/year averaged over a 5-year period, with no single year exceeding 50 mSv.
Which of the following best describes the difference between a radiation protection standard and a radiation protection guide?
Answer: Standards are legally enforceable regulations; guides are advisory recommendations
Regulatory standards have legal enforcement authority, while radiation protection guides (e.g., NCRP reports) are advisory in nature.
What action level triggers mandatory reporting to the NRC under 10 CFR 20.2201 for lost or stolen licensed material?
Answer: Quantities greater than 10 times the applicable annual limit on intake (ALI)
10 CFR 20.2201 requires immediate report to the NRC when quantities greater than 10 times the ALI of licensed material are lost or stolen.
The concept of 'derived air concentration' (DAC) in 10 CFR Part 20 is based on what assumption?
Answer: A 2000-hour work year with inhalation at 1.2 m³/hour resulting in one ALI intake
DAC is defined as the air concentration that, if breathed for a working year (2000 hours) at 1.2 m³/hour, would result in an intake of one ALI.
Under 10 CFR 50 Appendix I, what is the dose design objective for liquid effluents from light-water reactors to unrestricted areas?
Answer: 3 mrem/year to total body or any organ
Appendix I to 10 CFR Part 50 sets the design objective of 3 mrem/year from liquid effluents to any organ or total body for the public.
Which regulatory body has primary authority over radiation protection standards for naturally occurring radioactive materials (NORM) in the oil and gas industry?
Answer: State governments, as NORM is generally not regulated by the NRC
NORM in the oil and gas industry is typically regulated by individual state agencies because it is excluded from NRC jurisdiction under the Atomic Energy Act.
In the context of NRC licensing, what is an 'Agreement State'?
Answer: A state that has entered into an agreement with the NRC to assume regulatory authority over certain radioactive materials
An Agreement State has signed an agreement with the NRC under Section 274b of the Atomic Energy Act to regulate byproduct, source, and special nuclear materials.