Mosby ARRT Radiography Exam | Practice Questions and Review
Based on Mosby’s Guide – 2024–2025 Edition
This document features ARRT Radiography Exam practice questions and detailed
answer explanations based on Mosby’s trusted study materials. It covers all key
domains tested on the ARRT exam, including patient care, radiographic procedures,
image production, radiation safety, and equipment operation. Ideal for radiologic
technologist students using Mosby’s guide to prepare for certification in 2024–2025.
1. Ionizing Radiation: radiation that is able to remove electrons from an atom
through ionization
2. Somatic effects: refers to the effects of radiation to the body being irradiated
3. Genetic Effects: refers to effects of radiation to a germ cell's genetic code;
effects the next generation
4. Primary radiation: radiation exiting the x-ray tube
5. Remnant radiation (or Exit Radiation): x-rays the leave the patient and strike
the image receptor
6. attenuation: absorption and scatter of the x-ray beam as it passes through the
patient
7. heterogenous beam: x-ray beam that has photons of many different energies
8. photoelectric effect: absorption of x-ray photons in the body
9. compton effect: scatter of x-ray photons in the body
, 10. air kerma: unit of exposure
11. gray: unit of absorbed dose
12. gray(a): unit of radiation absorbed in air
13. gray(t): unit of radiation absorbed in tissue
14. sievert: unit of effective dose or unit of equivalent dose
15. becquerel: unit of activity
16. uncontrolled area: general public area, like waiting room or stairways
17. controlled area: occupied by people trained in radiation safety and wear
radiation badges/monitors
18. x-ray tube leakage may not exceed what?: 1mGy(a) per hour at a distance of
1 meter from the housing
19. minimum lead equivalent for fluoro curtain: 0.25mm
20. minimum lead equivalent for bucky slot shield: 0.25mm
21. NAS or NRC-BEIR: National Academy of Sciences/National Research
Counsel on the Biological Effects of Ionizing Radiation studies biologic effects
of ionizing radiation and publishes the data
22. NCRP: National Counsel on Radiation Protection
publishes radiation protection guidelines for the US
23. NRC: Nuclear Regulatory Commission
enforces radiation protection standards at the federal level
24. NCRP Report #102: makes recommendations on equipment design and
protection regarding lead shielding and fluoro and mobile exposure rates
Based on Mosby’s Guide – 2024–2025 Edition
This document features ARRT Radiography Exam practice questions and detailed
answer explanations based on Mosby’s trusted study materials. It covers all key
domains tested on the ARRT exam, including patient care, radiographic procedures,
image production, radiation safety, and equipment operation. Ideal for radiologic
technologist students using Mosby’s guide to prepare for certification in 2024–2025.
1. Ionizing Radiation: radiation that is able to remove electrons from an atom
through ionization
2. Somatic effects: refers to the effects of radiation to the body being irradiated
3. Genetic Effects: refers to effects of radiation to a germ cell's genetic code;
effects the next generation
4. Primary radiation: radiation exiting the x-ray tube
5. Remnant radiation (or Exit Radiation): x-rays the leave the patient and strike
the image receptor
6. attenuation: absorption and scatter of the x-ray beam as it passes through the
patient
7. heterogenous beam: x-ray beam that has photons of many different energies
8. photoelectric effect: absorption of x-ray photons in the body
9. compton effect: scatter of x-ray photons in the body
, 10. air kerma: unit of exposure
11. gray: unit of absorbed dose
12. gray(a): unit of radiation absorbed in air
13. gray(t): unit of radiation absorbed in tissue
14. sievert: unit of effective dose or unit of equivalent dose
15. becquerel: unit of activity
16. uncontrolled area: general public area, like waiting room or stairways
17. controlled area: occupied by people trained in radiation safety and wear
radiation badges/monitors
18. x-ray tube leakage may not exceed what?: 1mGy(a) per hour at a distance of
1 meter from the housing
19. minimum lead equivalent for fluoro curtain: 0.25mm
20. minimum lead equivalent for bucky slot shield: 0.25mm
21. NAS or NRC-BEIR: National Academy of Sciences/National Research
Counsel on the Biological Effects of Ionizing Radiation studies biologic effects
of ionizing radiation and publishes the data
22. NCRP: National Counsel on Radiation Protection
publishes radiation protection guidelines for the US
23. NRC: Nuclear Regulatory Commission
enforces radiation protection standards at the federal level
24. NCRP Report #102: makes recommendations on equipment design and
protection regarding lead shielding and fluoro and mobile exposure rates
