,Chapter 01: Essential Concepts of Radiologic Science
hp hp hp hp hp hp
Bushong: Radiologic Science for Technologists, 12th Edition
hp hp hp hp hp hp hp
MULTIPLE CHOICE hp
1. Matter is measured in hp hp hp .
a. kilograms
b. joules
c. electron volts hp
d. rems
ANS: A hp
Matter is measured in kilograms.
hp hp hp hp
2. Atoms and molecules are the fundamental building blocks of
hp hp hp hp hp hp hp hp .
a. energy
b. radiation
c. matter
d. gravity
ANS: C hp
Atoms and molecules are the fundamental building blocks of matter.
hp hp hp hp hp hp hp hp hp
3. Ice and steam are examples of two forms of
hp hp hp hp hp hp hp hp .
a. matter
b. radiation
c. energy
d. work
ANS: A hp
Ice and steam are examples of two forms of matter.
hp hp hp hp hp hp hp hp hp
4. The formula E = mc2 is the basis for the theory that led to the development of
hp hp hp hp
hp
hp hp hp hp hp hp hp hp hp hp hp .
a. x-rays
b. electromagnetic radiation hp
c. nuclear power hp
d. cathode ray tubes hp hp
ANS: C hp
The formula E = mc2 is the basis for the theory that led to the development of nuclear
hp hp hp hp hp hp hp hp hp hp hp hp hp hp hp hp hp
power.
hp
5. Radio waves, light, and x-rays are all examples of
hp hp hp hp hp hp hp hp energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D hp
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
hp hp hp hp hp hp hp hp hp hp hp hp hp hp
spectrum.
hp
, 6. A moving object has
hp hp hp energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B hp
A moving object has kinetic energy.
hp hp hp hp hp
7. What is the removal of an electron from an atom called?
hp hp hp hp hp hp hp hp hp hp
a. Ionization
b. Pair production hp
c. Irradiation
d. Electricity
ANS: A hp
The removal of an electron from an atom is called ionization.
hp hp hp hp hp hp hp hp hp hp
8. Ionizing radiation is capable of removing
hp hp hp hp hp from atoms as it passes through
hp hp hp hp hp
the matter.
hp hp
a. neutrons
b. protons
c. electrons
d. ions
ANS: C hp
Ionizing radiation is capable of removing electrons from atoms as it passes through the
hp hp hp hp hp hp hp hp hp hp hp hp hp
matter.
hp
9. The energy of x-rays is _
hp hp hp hp hp .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D hp
X-rays are a form of electromagnetic energy.
hp hp hp hp hp hp
10. The biggest source of man-made ionizing radiation exposure to the public is
hp hp hp hp hp hp hp hp hp hp hp
.
a. atomic fallout hp
b. diagnostic x-rays hp
c. smoke detectors hp
d. nuclear power plants hp hp
ANS: B hp
Medical x-ray exposure is the biggest source of man-made radiation.
hp hp hp hp hp hp hp hp hp
11. In the United States, we are exposed to
hp hp hp hp hp hp hp _ mSv/year of ionizing radiation from
hp hp hp hp hp
the natural environment.
hp hp hp
a. 0 to 5 hp hp
b. 5 to 20 hp hp
c. 20 to 90 hp hp
, d. 100 to 300 hp hp
ANS: A hp
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental
hp hp hp hp hp hp hp hp hp hp hp hp
sources in the United States.
hp hp hp hp hp
12. Today, radiology is considered to be a(n)
hp hp hp hp hp hp occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A hp
Today, radiology is considered to be a safe occupation because of effective radiation
hp hp hp hp hp hp hp hp hp hp hp hp
protection practices.
hp hp
13. is a special quantity of radiologic science. hp hp hp hp hp hp
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C hp
Radioactivity is a special quantity of radiologic science.
hp hp hp hp hp hp hp
14. What does ALARA mean?
hp hp hp
a. All Level Alert Radiation Accident
hp hp hp hp
b. As Low As Reasonably Achievable
hp hp hp hp
c. Always Leave A Restricted Area hp hp hp hp
d. As Low As Regulations Allow
hp hp hp hp
ANS: B hp
ALARA means As Low As Reasonably Achievable.
hp hp hp hp hp hp
15. Computed tomography was developed in the
hp hp hp hp hp .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C hp
Computed tomography was developed in the 1970s.
hp hp hp hp hp hp
16. Filtration is used to hp . hp hp
a. absorb low-energy x-rays hp hp
b. remove high-energy x-rays hp hp
c. restrict the useful beam to the body part imaged
hp hp hp hp hp hp hp hp
d. fabricate gonadal shields hp hp
ANS: A hp
Filtration is used to absorb low-energy x-rays.
hp hp hp hp hp hp
hp hp hp hp hp hp
Bushong: Radiologic Science for Technologists, 12th Edition
hp hp hp hp hp hp hp
MULTIPLE CHOICE hp
1. Matter is measured in hp hp hp .
a. kilograms
b. joules
c. electron volts hp
d. rems
ANS: A hp
Matter is measured in kilograms.
hp hp hp hp
2. Atoms and molecules are the fundamental building blocks of
hp hp hp hp hp hp hp hp .
a. energy
b. radiation
c. matter
d. gravity
ANS: C hp
Atoms and molecules are the fundamental building blocks of matter.
hp hp hp hp hp hp hp hp hp
3. Ice and steam are examples of two forms of
hp hp hp hp hp hp hp hp .
a. matter
b. radiation
c. energy
d. work
ANS: A hp
Ice and steam are examples of two forms of matter.
hp hp hp hp hp hp hp hp hp
4. The formula E = mc2 is the basis for the theory that led to the development of
hp hp hp hp
hp
hp hp hp hp hp hp hp hp hp hp hp .
a. x-rays
b. electromagnetic radiation hp
c. nuclear power hp
d. cathode ray tubes hp hp
ANS: C hp
The formula E = mc2 is the basis for the theory that led to the development of nuclear
hp hp hp hp hp hp hp hp hp hp hp hp hp hp hp hp hp
power.
hp
5. Radio waves, light, and x-rays are all examples of
hp hp hp hp hp hp hp hp energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D hp
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
hp hp hp hp hp hp hp hp hp hp hp hp hp hp
spectrum.
hp
, 6. A moving object has
hp hp hp energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B hp
A moving object has kinetic energy.
hp hp hp hp hp
7. What is the removal of an electron from an atom called?
hp hp hp hp hp hp hp hp hp hp
a. Ionization
b. Pair production hp
c. Irradiation
d. Electricity
ANS: A hp
The removal of an electron from an atom is called ionization.
hp hp hp hp hp hp hp hp hp hp
8. Ionizing radiation is capable of removing
hp hp hp hp hp from atoms as it passes through
hp hp hp hp hp
the matter.
hp hp
a. neutrons
b. protons
c. electrons
d. ions
ANS: C hp
Ionizing radiation is capable of removing electrons from atoms as it passes through the
hp hp hp hp hp hp hp hp hp hp hp hp hp
matter.
hp
9. The energy of x-rays is _
hp hp hp hp hp .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D hp
X-rays are a form of electromagnetic energy.
hp hp hp hp hp hp
10. The biggest source of man-made ionizing radiation exposure to the public is
hp hp hp hp hp hp hp hp hp hp hp
.
a. atomic fallout hp
b. diagnostic x-rays hp
c. smoke detectors hp
d. nuclear power plants hp hp
ANS: B hp
Medical x-ray exposure is the biggest source of man-made radiation.
hp hp hp hp hp hp hp hp hp
11. In the United States, we are exposed to
hp hp hp hp hp hp hp _ mSv/year of ionizing radiation from
hp hp hp hp hp
the natural environment.
hp hp hp
a. 0 to 5 hp hp
b. 5 to 20 hp hp
c. 20 to 90 hp hp
, d. 100 to 300 hp hp
ANS: A hp
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental
hp hp hp hp hp hp hp hp hp hp hp hp
sources in the United States.
hp hp hp hp hp
12. Today, radiology is considered to be a(n)
hp hp hp hp hp hp occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A hp
Today, radiology is considered to be a safe occupation because of effective radiation
hp hp hp hp hp hp hp hp hp hp hp hp
protection practices.
hp hp
13. is a special quantity of radiologic science. hp hp hp hp hp hp
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C hp
Radioactivity is a special quantity of radiologic science.
hp hp hp hp hp hp hp
14. What does ALARA mean?
hp hp hp
a. All Level Alert Radiation Accident
hp hp hp hp
b. As Low As Reasonably Achievable
hp hp hp hp
c. Always Leave A Restricted Area hp hp hp hp
d. As Low As Regulations Allow
hp hp hp hp
ANS: B hp
ALARA means As Low As Reasonably Achievable.
hp hp hp hp hp hp
15. Computed tomography was developed in the
hp hp hp hp hp .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C hp
Computed tomography was developed in the 1970s.
hp hp hp hp hp hp
16. Filtration is used to hp . hp hp
a. absorb low-energy x-rays hp hp
b. remove high-energy x-rays hp hp
c. restrict the useful beam to the body part imaged
hp hp hp hp hp hp hp hp
d. fabricate gonadal shields hp hp
ANS: A hp
Filtration is used to absorb low-energy x-rays.
hp hp hp hp hp hp
