Test Bank for Radiation Safety and Radiobiology In Medical Imaging
10th Edition by Mary Alice Statkiewicz Sherer |All Chapters (1-
16) PRACTICE QUESTIONS |ORIGINAL QUESTIONS & ANSWERS
|DETAILED RATIONALES |HINTED COMPLETE EXAM PREP GRADED
A+*INSTANT DOWNLOAD PDF
1. Which type of radiation has sufficient energy to remove
electrons from atoms?
A. Nonionizing radiation
B. Ionizing radiation
C. Radiofrequency radiation
D. Infrared radiation
,Answer: B. Ionizing radiation
Rationale: Ionizing radiation has enough energy to eject electrons
from atoms, producing ions and potentially initiating chemical and
biological changes.
2. Which electromagnetic radiation has the highest photon energy?
A. Radio waves
B. Visible light
C. Ultraviolet light
D. Gamma rays
Answer: D. Gamma rays
Rationale: Photon energy increases with frequency. Gamma rays
occupy the highest-energy portion of the electromagnetic spectrum.
3. What is the SI unit of absorbed dose?
A. Sievert
B. Gray
C. Roentgen
D. Coulomb per kilogram
Answer: B. Gray
Rationale: The gray (Gy) is the SI unit of absorbed dose and
represents one joule of energy deposited per kilogram of matter.
4. What is the SI unit of equivalent and effective dose?
A. Gray
B. Rad
,C. Sievert
D. Roentgen
Answer: C. Sievert
Rationale: The sievert (Sv) accounts for radiation type and, for
effective dose, tissue sensitivity.
5. One gray is equal to how many rads?
A. 0.01 rad
B. 1 rad
C. 10 rad
D. 100 rad
Answer: D. 100 rad
Rationale: One gray equals 100 rad.
6. One sievert is equal to how many rem?
A. 0.01 rem
B. 1 rem
C. 10 rem
D. 100 rem
Answer: D. 100 rem
Rationale: One sievert equals 100 rem.
7. What is the relationship between photon frequency and
wavelength?
A. They are directly proportional
B. They are inversely proportional
, C. They are unrelated
D. Both remain constant
Answer: B. They are inversely proportional
Rationale: Frequency and wavelength are related by the speed of
light: c = fλ.
8. Which equation represents photon energy?
A. E = mc
B. E = hf
C. E = mv
D. E = IR
Answer: B. E = hf
Rationale: Photon energy is proportional to frequency, where h is
Planck's constant.
9. Increasing photon frequency causes photon energy to:
A. Decrease
B. Remain constant
C. Increase
D. Become zero
Answer: C. Increase
Rationale: Because E = hf, photon energy increases as frequency
increases.
10. What determines the penetrating ability of diagnostic x-rays
most directly?
10th Edition by Mary Alice Statkiewicz Sherer |All Chapters (1-
16) PRACTICE QUESTIONS |ORIGINAL QUESTIONS & ANSWERS
|DETAILED RATIONALES |HINTED COMPLETE EXAM PREP GRADED
A+*INSTANT DOWNLOAD PDF
1. Which type of radiation has sufficient energy to remove
electrons from atoms?
A. Nonionizing radiation
B. Ionizing radiation
C. Radiofrequency radiation
D. Infrared radiation
,Answer: B. Ionizing radiation
Rationale: Ionizing radiation has enough energy to eject electrons
from atoms, producing ions and potentially initiating chemical and
biological changes.
2. Which electromagnetic radiation has the highest photon energy?
A. Radio waves
B. Visible light
C. Ultraviolet light
D. Gamma rays
Answer: D. Gamma rays
Rationale: Photon energy increases with frequency. Gamma rays
occupy the highest-energy portion of the electromagnetic spectrum.
3. What is the SI unit of absorbed dose?
A. Sievert
B. Gray
C. Roentgen
D. Coulomb per kilogram
Answer: B. Gray
Rationale: The gray (Gy) is the SI unit of absorbed dose and
represents one joule of energy deposited per kilogram of matter.
4. What is the SI unit of equivalent and effective dose?
A. Gray
B. Rad
,C. Sievert
D. Roentgen
Answer: C. Sievert
Rationale: The sievert (Sv) accounts for radiation type and, for
effective dose, tissue sensitivity.
5. One gray is equal to how many rads?
A. 0.01 rad
B. 1 rad
C. 10 rad
D. 100 rad
Answer: D. 100 rad
Rationale: One gray equals 100 rad.
6. One sievert is equal to how many rem?
A. 0.01 rem
B. 1 rem
C. 10 rem
D. 100 rem
Answer: D. 100 rem
Rationale: One sievert equals 100 rem.
7. What is the relationship between photon frequency and
wavelength?
A. They are directly proportional
B. They are inversely proportional
, C. They are unrelated
D. Both remain constant
Answer: B. They are inversely proportional
Rationale: Frequency and wavelength are related by the speed of
light: c = fλ.
8. Which equation represents photon energy?
A. E = mc
B. E = hf
C. E = mv
D. E = IR
Answer: B. E = hf
Rationale: Photon energy is proportional to frequency, where h is
Planck's constant.
9. Increasing photon frequency causes photon energy to:
A. Decrease
B. Remain constant
C. Increase
D. Become zero
Answer: C. Increase
Rationale: Because E = hf, photon energy increases as frequency
increases.
10. What determines the penetrating ability of diagnostic x-rays
most directly?
