NRRPT - National Registry of Radiation Protection Technicians Radiological Protection Standards Questions and Answers

Question 1

According to 10 CFR 20, what is the annual occupational dose limit for the lens of the eye for an adult radiation worker?

Accepted Answer

15 rem (0.15 Sv)

Answer

5 rem (0.05 Sv)

Answer

50 rem (0.5 Sv)

Answer

1.5 rem (0.015 Sv)

Question 2

A radiation worker is planning a task in a high radiation area. Which of the following principles is most critical for minimizing their radiation dose?

Accepted Answer

ALARA (As Low As Reasonably Achievable)

Answer

Contamination control

Answer

Bioassay monitoring

Answer

Stochastic effect prevention

Question 3

Which of the following describes a key difference between stochastic and deterministic effects of radiation?

Accepted Answer

The probability of a stochastic effect increases with dose, but its severity is independent of the dose.

Answer

Stochastic effects have a clear dose threshold, while deterministic effects do not.

Answer

The severity of a stochastic effect is dose-dependent, while the probability of a deterministic effect is dose-dependent.

Answer

Stochastic effects are immediate, while deterministic effects have a long latency period.

Question 4

An area is surveyed and found to have a radiation level that could result in an individual receiving a dose equivalent in excess of 100 mrem in 1 hour at 30 centimeters from the source. According to 10 CFR 20, how must this area be posted?

Accepted Answer

DANGER, HIGH RADIATION AREA

Answer

CAUTION, RADIATION AREA

Answer

CAUTION, RADIOACTIVE MATERIAL

Answer

GRAVE DANGER, VERY HIGH RADIATION AREA

Question 5

What is the annual dose limit for an individual member of the public for continuous or frequent exposure from a licensed operation, according to NRC and NCRP recommendations?

Accepted Answer

100 mrem (1 mSv)

Answer

500 mrem (5 mSv)

Answer

50 mrem (0.5 mSv)

Answer

10 mrem (0.1 mSv)

Question 6

A 17-year-old student is working in a lab under an NRC license. What are their annual occupational dose limits compared to an adult worker?

Accepted Answer

10 percent of the adult limits

Answer

The same as an adult worker

Answer

50 percent of the adult limits

Answer

25 percent of the adult limits