Test Bank For Radiologic Science for Technologists 13th
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Edition by Bushong Chapter 1-40 [Updated 2025/26]
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,Chapter 01: Essential Concepts of Radiologic Science
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Bushong: Radiologic Science for Technologists, 13th Edition
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MULTIPLE CHOICE L
1. Matter is measured in L L L .
a. kilograms
b. joules
c. electron volts L
d. rems
ANS: A L
Matter is measured in kilograms.
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2. Atoms and molecules are the fundamental building blocks of
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a. energy
b. radiation
c. matter
d. gravity
ANS: C L
Atoms and molecules are the fundamental building blocks of matter.
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3. Ice and steam are examples of two forms of
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a. matter
b. radiation
c. energy
d. work
ANS: A L
Ice and steam are examples of two forms of matter.
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4. The formula E = mc2 is the basis for the theory that led to the development of
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L
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a. x-rays
b. electromagnetic radiation L
c. nuclear power L
d. cathode ray tubes L L
ANS: C L
The formula E = mc2 is the basis for the theory that led to the development of nuclear power.
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5. Radio waves, light, and x-rays are all examples of
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a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D L
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
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spectrum.
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, 6. A moving object has
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a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B L
A moving object has kinetic energy.
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7. What is the removal of an electron from an atom called?
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a. Ionization
b. Pair production L
c. Irradiation
d. Electricity
ANS: A L
The removal of an electron from an atom is called ionization.
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8. Ionizing radiation is capable of removing
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Lmatter.
a. neutrons
b. protons
c. electrons
d. ions
ANS: C L
Ionizing radiation is capable of removing electrons from atoms as it passes through the matter.
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9. The energy of x-rays is _
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a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D L
X-rays are a form of electromagnetic energy.
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10. The biggest source of man-made ionizing radiation exposure to the public is
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.
a. atomic fallout L
b. diagnostic x-rays L
c. smoke detectors L
d. nuclear power plants L L
ANS: B L
Medical x-ray exposure is the biggest source of man-made radiation.
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11. In the United States, we are exposed to
L L L L L L L _ mSv/year of ionizing radiation from the
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Lnatural environment. L
a. 0 to 5 L L
b. 5 to 20 L L
c. 20 to 90 L L
, d. 100 to 300 L L
ANS: A L
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources in
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the United States.
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12. Today, radiology is considered to be a(n)
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a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A L
Today, radiology is considered to be a safe occupation because of effective radiation protection
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practices.
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13. is a special quantity of radiologic science. L L L L L L
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C L
Radioactivity is a special quantity of radiologic science.
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14. What does ALARA mean?
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a. All Level Alert Radiation Accident
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b. As Low As Reasonably Achievable
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c. Always Leave A Restricted Area L L L L
d. As Low As Regulations Allow
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ANS: B L
ALARA means As Low As Reasonably Achievable.
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15. Computed tomography was developed in the
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a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C L
Computed tomography was developed in the 1970s.
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16. Filtration is used to L L . L
a. absorb low-energy x-rays L L
b. remove high-energy x-rays L L
c. restrict the useful beam to the body part imaged
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d. fabricate gonadal shields L L
ANS: A L
Filtration is used to absorb low-energy x-rays.
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