TEST BANK FOR RADIOLOGIC
SCIENCE FOR TECHNOLOGISTS
12TH EDITION BY STEWART C
BUSHONG CHAPTERS 1 - 40,
COMPLETE
Radiologic Science for Technologists, 12th Edition - Complete Test Bank with Answers and Rationales
Chapter 01: Essential Concepts of Radiologic Science
1. Matter is measured in
a. kilograms
b. joules
c. electron volts
d. rems
Answer: A
Rationale: Matter is measured in kilograms. Kilograms are the SI unit of mass, which is the quantity of
matter in an object. Joules measure energy, electron volts measure energy at the atomic level, and rems
measure radiation dose equivalent.
2. Atoms and molecules are the fundamental building blocks of
a. energy
b. radiation
c. matter
d. gravity
Answer: C
Rationale: Atoms and molecules are the fundamental building blocks of matter. Everything in the
physical universe is composed of matter, which is made up of atoms and molecules.
3. Ice and steam are examples of two forms of
a. matter
b. radiation
,c. energy
d. work
Answer: A
Rationale: Ice and steam are examples of two forms of matter. They represent different states (solid
and gas) of the same substance, water, which is matter.
4. The formula E = mc² is the basis for the theory that led to the development of
a. x-rays
b. electromagnetic radiation
c. nuclear power
d. cathode ray tubes
Answer: C
Rationale: Einstein's formula E = mc² established the equivalence of mass and energy, which is the
fundamental principle behind nuclear power. This theory explains how mass can be converted to energy
in nuclear reactions.
5. Radio waves, light, and x-rays are all examples of _____ energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
Answer: D
Rationale: Radio waves, light, and x-rays are all forms of electromagnetic energy. They are part of the
electromagnetic spectrum, differing only in their wavelength and frequency.
6. A moving object has _____ energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
Answer: B
Rationale: A moving object has kinetic energy, which is the energy of motion. Kinetic energy depends on
the mass and velocity of the object.
,7. What is the removal of an electron from an atom called?
a. Ionization
b. Pair production
c. Irradiation
d. Electricity
Answer: A
Rationale: The removal of an electron from an atom is called ionization. This process creates an ion pair
consisting of a positively charged atom (cation) and a free electron.
8. Ionizing radiation is capable of removing _____ from atoms as it passes through the matter.
a. neutrons
b. protons
c. electrons
d. ions
Answer: C
Rationale: Ionizing radiation is capable of removing electrons from atoms as it passes through matter.
This is the definition of ionization, which creates charged particles.
9. The energy of x-rays is _____
a. thermal
b. potential
c. kinetic
d. electromagnetic
Answer: D
Rationale: X-rays are a form of electromagnetic energy. They are part of the electromagnetic spectrum
and travel as photons with wave-particle duality.
10. The biggest source of man-made ionizing radiation exposure to the public is
a. atomic fallout
b. diagnostic x-rays
c. smoke detectors
d. nuclear power plants
, Answer: B
Rationale: Medical x-ray exposure is the biggest source of man-made radiation exposure to the public.
Diagnostic imaging procedures account for the majority of artificial radiation exposure.
11. In the United States, we are exposed to _____ mSv/year of ionizing radiation from the natural
environment.
a. 0 to 5
b. 5 to 20
c. 20 to 90
d. 100 to 300
Answer: A
Rationale: We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources
in the United States. This includes cosmic radiation, terrestrial radiation, and internal radiation from
radon.
12. Today, radiology is considered to be a(n) _____ occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
Answer: A
Rationale: Today, radiology is considered to be a safe occupation because of effective radiation
protection practices. The implementation of ALARA principles, shielding, and monitoring has made
radiology a safe profession.
13. _____ is a special quantity of radiologic science.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
Answer: C
Rationale: Radioactivity is a special quantity of radiologic science. It refers to the spontaneous decay of
unstable atomic nuclei, which is fundamental to radiation physics and nuclear medicine.
SCIENCE FOR TECHNOLOGISTS
12TH EDITION BY STEWART C
BUSHONG CHAPTERS 1 - 40,
COMPLETE
Radiologic Science for Technologists, 12th Edition - Complete Test Bank with Answers and Rationales
Chapter 01: Essential Concepts of Radiologic Science
1. Matter is measured in
a. kilograms
b. joules
c. electron volts
d. rems
Answer: A
Rationale: Matter is measured in kilograms. Kilograms are the SI unit of mass, which is the quantity of
matter in an object. Joules measure energy, electron volts measure energy at the atomic level, and rems
measure radiation dose equivalent.
2. Atoms and molecules are the fundamental building blocks of
a. energy
b. radiation
c. matter
d. gravity
Answer: C
Rationale: Atoms and molecules are the fundamental building blocks of matter. Everything in the
physical universe is composed of matter, which is made up of atoms and molecules.
3. Ice and steam are examples of two forms of
a. matter
b. radiation
,c. energy
d. work
Answer: A
Rationale: Ice and steam are examples of two forms of matter. They represent different states (solid
and gas) of the same substance, water, which is matter.
4. The formula E = mc² is the basis for the theory that led to the development of
a. x-rays
b. electromagnetic radiation
c. nuclear power
d. cathode ray tubes
Answer: C
Rationale: Einstein's formula E = mc² established the equivalence of mass and energy, which is the
fundamental principle behind nuclear power. This theory explains how mass can be converted to energy
in nuclear reactions.
5. Radio waves, light, and x-rays are all examples of _____ energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
Answer: D
Rationale: Radio waves, light, and x-rays are all forms of electromagnetic energy. They are part of the
electromagnetic spectrum, differing only in their wavelength and frequency.
6. A moving object has _____ energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
Answer: B
Rationale: A moving object has kinetic energy, which is the energy of motion. Kinetic energy depends on
the mass and velocity of the object.
,7. What is the removal of an electron from an atom called?
a. Ionization
b. Pair production
c. Irradiation
d. Electricity
Answer: A
Rationale: The removal of an electron from an atom is called ionization. This process creates an ion pair
consisting of a positively charged atom (cation) and a free electron.
8. Ionizing radiation is capable of removing _____ from atoms as it passes through the matter.
a. neutrons
b. protons
c. electrons
d. ions
Answer: C
Rationale: Ionizing radiation is capable of removing electrons from atoms as it passes through matter.
This is the definition of ionization, which creates charged particles.
9. The energy of x-rays is _____
a. thermal
b. potential
c. kinetic
d. electromagnetic
Answer: D
Rationale: X-rays are a form of electromagnetic energy. They are part of the electromagnetic spectrum
and travel as photons with wave-particle duality.
10. The biggest source of man-made ionizing radiation exposure to the public is
a. atomic fallout
b. diagnostic x-rays
c. smoke detectors
d. nuclear power plants
, Answer: B
Rationale: Medical x-ray exposure is the biggest source of man-made radiation exposure to the public.
Diagnostic imaging procedures account for the majority of artificial radiation exposure.
11. In the United States, we are exposed to _____ mSv/year of ionizing radiation from the natural
environment.
a. 0 to 5
b. 5 to 20
c. 20 to 90
d. 100 to 300
Answer: A
Rationale: We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources
in the United States. This includes cosmic radiation, terrestrial radiation, and internal radiation from
radon.
12. Today, radiology is considered to be a(n) _____ occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
Answer: A
Rationale: Today, radiology is considered to be a safe occupation because of effective radiation
protection practices. The implementation of ALARA principles, shielding, and monitoring has made
radiology a safe profession.
13. _____ is a special quantity of radiologic science.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
Answer: C
Rationale: Radioactivity is a special quantity of radiologic science. It refers to the spontaneous decay of
unstable atomic nuclei, which is fundamental to radiation physics and nuclear medicine.
