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Bushong: Radiologic Science for Technologists, 12th Edition
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MULTIPLE CHOICE L
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1. Matter is measured in T L T L T L T L .
a. kilograms
b. joules
c. electron volts L
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d. rems
ANS: T L A
Matter is measured in kilograms.T L L
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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: T L C
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: T L A
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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a. x-rays
b. electromagnetic radiation L
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c. nuclear power L
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d. cathode ray tubes L
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ANS: T L C
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: T L D
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the T L L
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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: T L B
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
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c. Irradiation
d. Electricity
ANS: T L A
The removal of an electron from an atom is called ionization.
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8. Ionizing radiation is capable of removing T L T L L
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a. neutrons
b. protons
c. electrons
d. ions
ANS: T L C
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: T L D
X-rays are a form of electromagnetic energy. T L L
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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 T L
b. diagnostic x-rays L
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c. smoke detectors L
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d. nuclear power plants L
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ANS: T L B
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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T mSv/year of ionizing radiation from the
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a. 0 to 5 L
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b. 5 to 20 L
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c. 20 to 90 L
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, d. 100 to 300 L
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ANS: T L A
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. is a special quantity of radiologic science. L
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a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: T L C
Radioactivity is a special quantity of radiologic science. L
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13. Today, radiology is considered to be a(n)
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a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: T L A
Today, radiology is 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 T L L
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d. As Low As Regulations Allow
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ANS: T L B
ALARA means As Low As Reasonably Achievable.
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15. Computed tomography was developed in the T L T L L
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a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: T L C
Computed tomography was developed in the 1970s. L
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16. Filtration is used to . T L T L T L T L
a. absorb low-energy x-rays T L L
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b. remove high-energy x-rays T L L
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c. restrict the useful beam to the body part imaged L
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d. fabricate gonadal shields L
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ANS: T L A
Filtration is used to absorb low-energy x-rays.
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, TRUE/FALSE
1. Mass is the quantity of matter as described by its energy equivalence.
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ANS: T L T
Mass is the quantity of matter as described by its energy equivalence.
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2. Radiation is the removal of an electron from an atom. L
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ANS: T L F
Ionization is the removal of an electron from an atom. L
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3. Radiology emerged as a medical specialty because of the Snook transformer and the Crookes
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ANS: T L F
Radiology emerged as a medical specialty because of the Snook transformer and the Coolidge
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x-ray tube.
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Chapter 02: Basic Physics Primer
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Bushong: Radiologic Science for Technologists, 12th Edition
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MULTIPLE CHOICE L
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1. The basic quantities measured in mechanics are
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a. volume; length; meters L
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b. mass; length; time T L L
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c. radioactivity; dose; exposure L
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d. meters; kilos; seconds T L T L
ANS: T L B
The basic quantities measured in mechanics are mass, length, and time.
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2. An example of a derived quantity in mechanical physics is a
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a. meter
b. second
c. dose
d. volume
ANS: T L D
Volume is a derived unit. T L T L L
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3. Exposure is measured in units of T L T L L
T T L T L T L .
a. becquerel
b. sieverts
c. meters
d. grays
ANS: T L D