1
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Radiation Protection in Medical
Radiography/ Final Exam Questions and
Answers (100% Correct Answers) Already
Graded A+
Which of the following is a form of radiation that is capable of
creating electrically charged particles by removing orbital
electrons from the atom of normal matter through which it
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passes?
a. Ionizing radiation
b. Nonionizing radiation
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c. Subatomic radiation
d. Ultrasonic radiation [ Ans: ] a. Ionizing Radiation
The millisievert (mSv) is equal to
a. 1/10 of a sievert.
b. 1/100 of a sievert.
c. 1/1000 of a sievert.
d. 1/10,000 of a sievert. [ Ans: ] C. 1/1000 of a sievert
Which of the following provides the basis for determining whether
an imaging procedure or practice is justified?
a. ALARA concept
b. BERT method
c. Diagnostic efficacy
d. NEXT program [ Ans: ] C. Diagnostic Efficacy
Which of the following radiation quantities is intended to be the
best overall measure of the biologic effects of ionizing radiation?
a. Exposure
, 2
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b. Effective dose
c. Absorbed dose
d. There is no radiation quantity that is intended to be the best
overall measure of the biologic effects of ionizing radiation. [ Ans:
] B. Effective Dose
Which of the following statements below is true?
a. It appears that no safe dose level exists for radiation-induced
malignant disease.
b. The ALARA principle establishes a dose level for radiation-
induced malignancy.
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c. The BERT method establishes a dose level for radiation-induced
malignancy.
d. The NEXT program and reference values establish a dose level
for radiation-induced malignancy. [ Ans: ] A. It appears that no
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safe dose level exists for radiation-induced malignant disease.
Electromagnetic radiation travels or propagates through space in
the form of a wave but can interact with matter as a particle of
energy called a photon. This dual nature is referred to as
a. wave attenuation capability.
b. wave-particle interchange ability.
c. wave-particle duality.
d. wave-particle phenomena. [ Ans: ] C
Which of the following statements concerning the 1979 nuclear
reactor accident at TMI-2 is not true?
a. Many excess cancer deaths have been predicted to occur in
the 2 million people living within 50 miles of the plant at the time of
the accident.
b. During the time of the accident, if persons living within a 100-
mile radius of the nuclear power plant received an average
radiation exposure of 15 microgray, and this dose is used as the
population dose, then no more than two additional resulting
, 3
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cancer deaths can be predicted in the exposed inhabitants as a
consequence of radiation exposure.
c. The average dose received by the exposed population living
within a 50-mile radius of the TMI nuclear power station at the time
of the accident was determined to be 0.08 mSv, which is well
below the average annual background level.
d. No melt-through of the reactor vessel resulted during the
accident. [ Ans: ] A
Terrestrial radiation includes which of the following sources?
a. Long-lived radioactive elements such as uranium-238, radium-
226, and
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thorium-232 that are present in variable quantities in the crust of
the earth
b. Radioactive fallout from nuclear weapons tests in which
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detonation occurred
above ground
c. The sun and beyond the solar system
d. Airport surveillance systems and electron microscopes [ Ans: ]
A
When exposed to high radon levels in the home, which of the
following groups of people have the highest risk of developing
lung
cancer?
a. Teenagers
b. Adults from 20 to 30 years of age
c. Nonsmokers
d. Smokers [ Ans: ] D
In the electromagnetic spectrum, higher frequencies are
associated with
a. longer wavelengths and lower energies.
b. longer wavelengths and higher energies.
, 4
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c. shorter wavelengths and lower energies.
d. shorter wavelengths and higher energies. [ Ans: ] D
Which of the following radiation quantities use the same unit of
measure?
1. Effective dose and equivalent dose
2. Exposure and effective dose
3. Absorbed dose and equivalent dose [ Ans: ] 1 ONLY
The first decay product of radium is
a. cesium.
b. radon.
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c. strontium.
d. x-ray. [ Ans: ] B
The mass of an alpha particle is approximately
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a. two times the mass of a hydrogen atom and a negative charge
of minus 2.
b. four times the mass of a hydrogen atom and a positive charge
twice that of an
electron.
c. six times the mass of a hydrogen atom and a negative charge
of minus 1.
d. eight times the mass of a hydrogen atom and a positive charge
four times that of
an electron. [ Ans: ] B
Which of the following sources of radiation is manmade?
1. Atmospheric fallout from nuclear weapons testing
2. Cosmic radiation from the sun and beyond the solar system
3. Nuclear power plant accidents as a consequence of natural
disasters
a. 1 and 2 only
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Radiation Protection in Medical
Radiography/ Final Exam Questions and
Answers (100% Correct Answers) Already
Graded A+
Which of the following is a form of radiation that is capable of
creating electrically charged particles by removing orbital
electrons from the atom of normal matter through which it
© 2025 Assignment Expert
passes?
a. Ionizing radiation
b. Nonionizing radiation
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c. Subatomic radiation
d. Ultrasonic radiation [ Ans: ] a. Ionizing Radiation
The millisievert (mSv) is equal to
a. 1/10 of a sievert.
b. 1/100 of a sievert.
c. 1/1000 of a sievert.
d. 1/10,000 of a sievert. [ Ans: ] C. 1/1000 of a sievert
Which of the following provides the basis for determining whether
an imaging procedure or practice is justified?
a. ALARA concept
b. BERT method
c. Diagnostic efficacy
d. NEXT program [ Ans: ] C. Diagnostic Efficacy
Which of the following radiation quantities is intended to be the
best overall measure of the biologic effects of ionizing radiation?
a. Exposure
, 2
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b. Effective dose
c. Absorbed dose
d. There is no radiation quantity that is intended to be the best
overall measure of the biologic effects of ionizing radiation. [ Ans:
] B. Effective Dose
Which of the following statements below is true?
a. It appears that no safe dose level exists for radiation-induced
malignant disease.
b. The ALARA principle establishes a dose level for radiation-
induced malignancy.
© 2025 Assignment Expert
c. The BERT method establishes a dose level for radiation-induced
malignancy.
d. The NEXT program and reference values establish a dose level
for radiation-induced malignancy. [ Ans: ] A. It appears that no
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safe dose level exists for radiation-induced malignant disease.
Electromagnetic radiation travels or propagates through space in
the form of a wave but can interact with matter as a particle of
energy called a photon. This dual nature is referred to as
a. wave attenuation capability.
b. wave-particle interchange ability.
c. wave-particle duality.
d. wave-particle phenomena. [ Ans: ] C
Which of the following statements concerning the 1979 nuclear
reactor accident at TMI-2 is not true?
a. Many excess cancer deaths have been predicted to occur in
the 2 million people living within 50 miles of the plant at the time of
the accident.
b. During the time of the accident, if persons living within a 100-
mile radius of the nuclear power plant received an average
radiation exposure of 15 microgray, and this dose is used as the
population dose, then no more than two additional resulting
, 3
For Expert help and assignment solutions, +254707240657
cancer deaths can be predicted in the exposed inhabitants as a
consequence of radiation exposure.
c. The average dose received by the exposed population living
within a 50-mile radius of the TMI nuclear power station at the time
of the accident was determined to be 0.08 mSv, which is well
below the average annual background level.
d. No melt-through of the reactor vessel resulted during the
accident. [ Ans: ] A
Terrestrial radiation includes which of the following sources?
a. Long-lived radioactive elements such as uranium-238, radium-
226, and
© 2025 Assignment Expert
thorium-232 that are present in variable quantities in the crust of
the earth
b. Radioactive fallout from nuclear weapons tests in which
Guru01 - Stuvia
detonation occurred
above ground
c. The sun and beyond the solar system
d. Airport surveillance systems and electron microscopes [ Ans: ]
A
When exposed to high radon levels in the home, which of the
following groups of people have the highest risk of developing
lung
cancer?
a. Teenagers
b. Adults from 20 to 30 years of age
c. Nonsmokers
d. Smokers [ Ans: ] D
In the electromagnetic spectrum, higher frequencies are
associated with
a. longer wavelengths and lower energies.
b. longer wavelengths and higher energies.
, 4
For Expert help and assignment solutions, +254707240657
c. shorter wavelengths and lower energies.
d. shorter wavelengths and higher energies. [ Ans: ] D
Which of the following radiation quantities use the same unit of
measure?
1. Effective dose and equivalent dose
2. Exposure and effective dose
3. Absorbed dose and equivalent dose [ Ans: ] 1 ONLY
The first decay product of radium is
a. cesium.
b. radon.
© 2025 Assignment Expert
c. strontium.
d. x-ray. [ Ans: ] B
The mass of an alpha particle is approximately
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a. two times the mass of a hydrogen atom and a negative charge
of minus 2.
b. four times the mass of a hydrogen atom and a positive charge
twice that of an
electron.
c. six times the mass of a hydrogen atom and a negative charge
of minus 1.
d. eight times the mass of a hydrogen atom and a positive charge
four times that of
an electron. [ Ans: ] B
Which of the following sources of radiation is manmade?
1. Atmospheric fallout from nuclear weapons testing
2. Cosmic radiation from the sun and beyond the solar system
3. Nuclear power plant accidents as a consequence of natural
disasters
a. 1 and 2 only
