Radiation Health and Safety Test Radiation Health and Safety Test Radiation Protection & Shielding

Question 1

What are the three fundamental principles of radiation protection?

Accepted Answer

Time, distance, and shielding

Answer

Filter, focus, and frame

Answer

Monitor, record, and report

Answer

Absorb, reflect, and scatter

Question 2

What does ALARA stand for in radiation protection?

Accepted Answer

As Low As Reasonably Achievable

Answer

All Licensed Areas Require Authorization

Answer

Authorized Limits for Acceptable Radiation Areas

Answer

Absorbed Level of Annual Radiation Allowance

Question 3

What is the NRC annual occupational whole-body effective dose limit for radiation workers in the United States?

Accepted Answer

50 mSv (5 rem)

Answer

1 mSv (100 mrem)

Answer

5 mSv (500 mrem)

Answer

20 mSv (2 rem)

Question 4

Which material is most commonly used as shielding against gamma radiation in diagnostic radiology facilities?

Accepted Answer

Concrete and lead

Answer

Aluminum

Answer

Wood

Answer

Plastic

Question 5

What is the purpose of a personal dosimeter worn by radiation workers?

Accepted Answer

To monitor and record an individual's cumulative radiation exposure

Answer

To block radiation from reaching the body

Answer

To warn of nearby radioactive sources by sound

Answer

To measure room radiation levels

Question 6

What is the annual dose limit for radiation exposure to the lens of the eye for occupational workers?

Accepted Answer

150 mSv

Answer

5 mSv

Answer

15 mSv

Answer

500 mSv