CHP Health Physics Regulations and Standards 5

Question 1

Under 10 CFR Part 20, what is the regulatory definition of a 'restricted area'?

Accepted Answer

Any area access to which is limited by the licensee for purposes of protecting individuals from exposure to radiation and radioactive materials

Answer

A restricted area is defined in 10 CFR 20.1003 as any area access to which is controlled by the licensee to protect workers from radiation exposure.

Question 2

Which EPA regulation establishes environmental radiation protection standards for nuclear power operations?

Accepted Answer

40 CFR Part 190

Answer

40 CFR Part 190 sets environmental radiation protection standards for the uranium fuel cycle, including nuclear power plant operations.

Question 3

Under NRC regulations, what triggers a requirement for an individual monitoring device (dosimeter) for a radiation worker?

Accepted Answer

Likelihood of receiving >10% of the annual occupational dose limit or entering a high or very high radiation area

Answer

10 CFR 20.1502 requires monitoring of workers likely to receive more than 10% of the applicable annual limit or those who enter high or very high radiation areas.

Question 4

The DOE Order 458.1 (Radiation Protection of the Public and the Environment) establishes a dose limit of how much for members of the public from DOE operations?

Accepted Answer

100 mrem/year effective dose

Answer

DOE Order 458.1 establishes a public dose limit of 100 mrem (1 mSv) effective dose per year from DOE operations, consistent with EPA and NRC standards.

Question 5

Under 49 CFR, what is the maximum dose rate allowed at the surface of a Type A radioactive material package?

Accepted Answer

2 mSv/h (200 mrem/h)

Answer

49 CFR limits the surface dose rate of Type A packages to 2 mSv/h (200 mrem/h) at any point on the external surface.

(CHP) Certified Health Physicist Practice Test

(CHP) Certified Health Physicist Practice Test

CHP Health Physics Regulations and Standards 5