Introduction to Radiation Safety

Introduction to Radiation Safety - Test


(First and Last - DO NOT USE PUNCTUATION, SPECIAL CHARACTERS or NUMBERS)
Are you a doctor or technician?

In order to pass the test and receive a certificate, you must score at least 85%.

  1. The primary risk from occupational radiation exposure is the increased risk of:

  2. The current lifetime risk of dying from all types of cancer in the United States is approximately:

  3. If a person received a radiation dose of 10 rem to the entire body (above background), his or her risk of dying from cancer would increase by one percent to a high of:

  4. Which of the following has the shortest wavelength?

  5. How long after the Roentgen’s discovery, were radiation burns detected?

  6. X-rays were discovered in 1895 by:

  7. Some of the most common effects of ionizing radiation are:

  8. When radiation interacts with a cell wall or DNA:

  9. Depending upon the ratio of neutrons to protons within its nucleus:

  10. Who discovered natural radioactivity?

  11. The half-life of Iridium 192 is approximately:

  12. The Curies discovered a radioactive element which they called:

  13. The cathode and anode are parts of:

  14. The principle advantage of a pocket dosimeter is its ability to:

  15. Which of the following produces a permanent record of radiation exposure?

  16. Radium could be used to radiograph casting as thick as:

  17. In the 1920's, what was used to personnel monitor individuals in order to determine their radiation exposure?

  18. Radiation is a form of:

  19. What are the two types of radiation?

  20. Which of the following have both energy and mass?

  21. The term used to describe an interaction where electrons acquire energy from a passing charged particle but are not removed completely from their atom is called:

  22. TLD stands for:

  23. One source of natural radiation is:

  24. The target of an x-ray tube is often made from:

  25. Which of the following is a source of nonionizing radiation?

  26. The instrument used to measure external radiation exposure for the day from gamma and x-rays worn by the radiographer is called a:

  27. Which of the following have a positive charge?

  28. Which of the following have a negative charge?

  29. Which of the following have no charge?

  30. Cobalt 60 is produced by:

  31. Electromagnetic radiation acts like a stream of small "packets" of energy called:

  32. What percentage of human exposure comes from outer space, rocks, soil. radon gas and the human body?

  33. The dislodging of one or more electrons from an atom is called:

  34. Typical industrial radiography pocket dosimeters have a full scale reading of:

  35. Which of the following is an example of electromagnetic radiation?

  36. Which of the following has the longest wavelength?

  37. All people have radioactive isotopes inside their bodies.

  38. A symptom from an overexposure to radiation which occurs years later is called:

  39. The most significant source of man-made radiation exposure to the average person is from:

  40. X-rays are produced:

  41. Gamma rays are produced by:

  42. Generally an isotope pellet is approximately:

  43. Radioisotopes such as Iridium 192 and Cobalt 60 are used in an industrial setting and are carried in a container called a:

  44. The strength of a source is called:

  45. Ionization of living tissue causes:

  46. How much radiation is a radiographer allowed to receive in a calendar year?

  47. The less time spent near a radioactive source or an x-ray tube:

  48. Which of the following are the two most common industrial gamma-ray sources?

  49. Which of the following is a rate measuring instrument?

  50. Which of the following has the most material penetrating power?

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