bushong_radiologic_science_for_technologists

Bushong Radiologic Science for Technologists, 12t
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h Edition Test bank A+
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,Chapter 01: Essential Concepts of Radiologic Science Bushong: R
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adiologic Science for Technologists, 12th Edition
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MULTIPLE CHOICE s




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



d. rems

ANS: A s



Matter is measured in kilograms.
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2. Atoms and molecules are the fundamental building blocks of
s s s s s s s s .
a. energy
b. radiation
c. matter
d. gravity

ANS: C s



Atoms and molecules are the fundamental building blocks of matter.
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3. Ice and steam are examples of two forms of
s s s s s s s s .
a. matter
b. radiation
c. energy
d. work

ANS: A s



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
s s s s s s s s s s s s s s s s .
a. x-rays
b. electromagnetic radiation s



c. nuclear power s



d. cathode ray tubes s s




ANS: C s



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
s s s s s s s s energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic

ANS: D s



Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the spectrum.
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, 6. A moving object has
s s s energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic

ANS: B s



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 s



c. Irradiation
d. Electricity

ANS: A s



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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from atoms as it passes through the m
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atter.
a. neutrons
b. protons
c. electrons
d. ions

ANS: C s



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 _
s s s s s .
a. thermal
b. potential
c. kinetic
d. electromagnetic

ANS: D s



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 s



b. diagnostic x-rays s



c. smoke detectors s



d. nuclear power plants s s




ANS: B s



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
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_ mSv/year of ionizing radiation from the na
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tural environment.
s



a. 0 to 5 s s

, b. 5 to 20s s



c. 20 to 90 s s



d. 100 to 300 s s




ANS: A s



We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources in the U
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nited States.
s




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



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



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




13. Today, radiologyis considered to be a(n)
s s s s s s occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk

ANS: A s



Today, radiology is considered to be a safe occupation because of effective radiation protection pra
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ctices.

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 s s s s



d. As Low As Regulations Allow
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ANS: B s



ALARA means As Low As Reasonably Achievable.
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15. Computed tomography was developed in the s s s s s .
a. 1890s
b. 1920s
c. 1970s
d. 1990s

ANS: C s



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




16. Filtration is used to s . s s



a. absorb low-energy x-rays s s



b. remove high-energy x-rays s s



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



d. fabricate gonadal shields s s




ANS: A s



Filtration is used to absorb low-energyx-rays.
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