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f 12th Edition Test bank A+
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,Chapter 01: Essential Concepts of Radiologic Science Bushong:
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Radiologic ScienceforTechnologists,12thEdition
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MULTIPLE CHOICE f
1. Matter is measured in f f f .
a. kilograms
b. joules
c. electron volts f
d. rems
ANS: A f
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 f
Atoms and molecules are the fundamental building blocks of matter.
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3. Ice and steam are examples of two forms of
f f f f f f f f .
a. matter
b. radiation
c. energy
d. work
ANS: A f
Ice and steam are examples of two forms of matter.
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4. The formula E = mc2 is the basis for the theorythat led to the development of
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a. x-rays
b. electromagneticradiation f
c. nuclear power f
d. cathode ray tubes f f
ANS: C f
The formula E = mc2 is the basis for the theorythat led to the development of nuclear power.
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5. Radio waves, light, and x-rays are all examples of
f f f f f f f f energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D f
Electromagnetic energyincludes radio waves, light, and x-rays as well as other parts of the spectrum.
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, 6. A moving object has
f f f energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B f
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 f
c. Irradiation
d. Electricity
ANS: A f
The removal of an electron from an atom is called ionization.
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8. Ionizing radiation is capable of removing f f f f f from atoms as it passes through the
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f matter.
a. neutrons
b. protons
c. electrons
d. ions
ANS: C f
Ionizing radiation is capable of removing electrons from atoms as it passes through the matter.
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9. The energyof x-rays is _
f f f f f .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D f
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 f
b. diagnostic x-rays f
c. smoke detectors f
d. nuclear power plants f f
ANS: B f
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
f f f f f f f _mSv/yearofionizingradiation from the
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f natural environment. f
a. 0 to 5 f f
b. 5 to 20 f f
c. 20 to 90 f f
, d. 100 to 300 f f
ANS: A f
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources in the
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United States.
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12. is a special quantityof radiologic science. f f f f f f
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C f
Radioactivityis a special quantityof radiologic science. f f f f f f f
13. Today, radiologyis considered to be a(n)
f f f f f f occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A f
Today, radiologyis considered to be a safe occupation because of effective radiation protection
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practices.
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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 f f f f
d. As Low As Regulations Allow
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ANS: B f
ALARA means As Low As ReasonablyAchievable.
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15. Computed tomographywas developed in the f f f f f .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C f
Computed tomographywas developed in the 1970s. f f f f f f
16. Filtration is used to f . f f
a. absorb low-energy x-rays f f
b. remove high-energyx-rays f f
c. restrict the useful beam to the bodypart imaged f f f f f f f f
d. fabricate gonadal shields f f
ANS: A f
Filtration is used to absorb low-energyx-rays.
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