Test Bank – Radiologic Science for Technologists: Physics, Biology, and Protection, 12th Edition – Stewart C. Bushong

TEST BANK For Radiologic Science For Technologists 12th Edition By
Stewart C Bushong LATEST UPDATE 2026



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,Chapter 01: Essential Concepts of Radiologic Science
x x x x x x


Bushong: Radiologic Science for Technologists, 12th Edition
x x x x x x x




MULTIPLE CHOICE x




1. Matter is measured in
x x x x .
a. kilograms
b. joules
c. electron volts x


d. rems

ANS: A x


Matter is measured in kilograms.
x x x x




2. Atoms and molecules are the fundamental building blocks of
x x x x x x x x x .
a. energy
b. radiation
c. matter
d. gravity
ANS: C x


Atoms and molecules are the fundamental building blocks of matter.
x x x x x x x x x




3. Ice and steam are examples of two forms of
x x x x x x x x x .
a. matter
b. radiation
c. energy
d. work

ANS: A x


Ice and steam are examples of two forms of matter.
x x x x x x x x x




2
4. The formula E = mc is the basis for the theory that led to the development of
x x x x x x x x x x x x x x x x x .
a. x-rays
b. electromagnetic radiation x


c. nuclear power x


d. cathode ray tubes x x




ANS: C x


The formula E = mc2 is the basis for the theory that led to the development of nuclear power.
x x x x x x x x x x x x x x x x x x




5. Radio waves, light, and x-rays are all examples of
x x x x x x x x x energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic

ANS: D x


Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
x x x x x x x x x x x x x x


spectrum.
x

, 6. A moving object has
x x x x energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B x


A moving object has kinetic energy.
x x x x x




7. What is the removal of an electron from an atom called?
x x x x x x x x x x


a. Ionization
b. Pair production x


c. Irradiation
d. Electricity

ANS: A x


The removal of an electron from an atom is called ionization.
x x x x x x x x x x




8. Ionizing radiation is capable of removing
x x x x x x from atoms as it passes through the
x x x x x x


xmatter.
a. neutrons
b. protons
c. electrons
d. ions
ANS: C x


Ionizing radiation is capable of removing electrons from atoms as it passes through the matter.
x x x x x x x x x x x x x x




9. The energy of x-rays is
x x x x x .
a. thermal
b. potential
c. kinetic
d. electromagnetic

ANS: D x


X-rays are a form of electromagnetic energy.
x x x x x x




10. The biggest source of man-made ionizing radiation exposure to the public is
x x x x x x x x x x x


.
a. atomic fallout x


b. diagnostic x-rays x


c. smoke detectors x


d. nuclear power plants x x




ANS: B x


Medical x-ray exposure is the biggest source of man-made radiation.
x x x x x x x x x




11. In the United States, we are exposed to
x x x x x x x x mSv/year of ionizing radiation from the
x x x x x


xnatural environment. x


a. 0 to 5 x x


b. 5 to 20 x x


c. 20 to 90 x x

, d. 100 to 300 x x




ANS: A x


We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources in
x x x x x x x x x x x x x x


the United States.
x x x




12. is a special quantity of radiologic science. x x x x x x


a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C x


Radioactivity is a special quantity of radiologic science.
x x x x x x x




13. Today, radiology is considered to be a(n)
x x x x x x x occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A x


Today, radiology is considered to be a safe occupation because of effective radiation
x x x x x x x x x x x x


protection practices.
x x




14. What does ALARA mean?
x x x


a. All Level Alert Radiation Accident
x x x x


b. As Low As Reasonably Achievable
x x x x


c. Always Leave A Restricted Area x x x x


d. As Low As Regulations Allow
x x x x




ANS: B x


ALARA means As Low As Reasonably Achievable.
x x x x x x




15. Computed tomography was developed in the
x x x x x x .
a. 1890s
b. 1920s
c. 1970s
d. 1990s

ANS: C x


Computed tomography was developed in the 1970s.
x x x x x x




16. Filtration is used to x .x x x


a. absorb low-energy x-rays x x


b. remove high-energy x-rays x x


c. restrict the useful beam to the body part imaged
x x x x x x x x


d. fabricate gonadal shields x x




ANS: A x


Filtration is used to absorb low-energy x-rays.
x x x x x x