Test Bank Bushong’s Radiologic Science for Technologists: Physics, Biology, and Protection, 13th Edition (By Stewart C. Bushong, Elizabeth Shields.)

,Chapter 01: Essential Concepts of Radiologic Science Bushon
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g: Radiologic Science for Technologists, 13th Edition
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MULTIPLE CHOICE $r




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


d. rems
ANS: A $r


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 $r


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 $r


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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$r
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a. x-rays
b. electromagnetic radiation $r


c. nuclear power $r


d. cathode ray tubes $r $r




ANS: C $r


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 $r


Electromagnetic energy includes radio waves, light, and x- $r $r $r $r $r $r $r


rays as well as other parts of the spectrum.
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, 6. A moving object has
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a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B $r


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 $r


c. Irradiation
d. Electricity
ANS: A $r


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
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matter.
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a. neutrons
b. protons
c. electrons
d. ions
ANS: C $r


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 $r


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 $r


b. diagnostic x-rays $r


c. smoke detectors $r


d. nuclear power plants $r $r




ANS: B $r


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
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natural environment.
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a. 0 to 5 $r $r


b. 5 to 20 $r $r


c. 20 to 90 $r $r

, d. 100 to 300 $r $r




ANS: A $r


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 $r


Today, radiology is considered to be a safe occupation because of effective radiation protectio
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n practices.
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13. is a special quantity of radiologic science. $r $r $r $r $r $r


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


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 $r $r $r $r


d. As Low As Regulations Allow
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ANS: B $r


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


Computed tomography was developed in the 1970s.
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16. Filtration is used to $r . $r $r


a. absorb low-energy x-rays $r $r


b. remove high-energy x-rays $r $r


c. restrict the useful beam to the body part imaged
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d. fabricate gonadal shields $r $r




ANS: A $r


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