,Chapter 01: Essential Concepts of Radiologic Science
g1 g1 g1 g1 g1 g1
Bushong: Radiologic Science for Technologists, 13th Edition
g1 g1 g1 g1 g1 g1 g1
MULTIPLE CHOICE g1
1. Matter is measured in g1 g1 g1 .
a. kilograms
b. joules
c. electron volts g1
d. rems
ANS: A g1
Matter is measured in kilograms.
g1 g1 g1 g1
2. Atoms and molecules are the fundamental building blocks of
g1 g1 g1 g1 g1 g1 g1 g1 .
a. energy
b. radiation
c. matter
d. gravity
ANS: C g1
Atoms and molecules are the fundamental building blocks of matter.
g1 g1 g1 g1 g1 g1 g1 g1 g1
3. Ice and steam are examples of two forms of
g1 g1 g1 g1 g1 g1 g1 g1 .
a. matter
b. radiation
c. energy
d. work
ANS: A g1
Ice and steam are examples of two forms of matter.
g1 g1 g1 g1 g1 g1 g1 g1 g1
4. The formula E = mc2 is the basis for the theory that led to the development of
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 .
a. x-rays
b. electromagnetic radiation g1
c. nuclear power g1
d. cathode ray tubes g1 g1
ANS: C g1
The formula E = mc2 is the basis for the theory that led to the development of nuclear
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
power.
g1
5. Radio waves, light, and x-rays are all examples of
g1 g1 g1 g1 g1 g1 g1 g1 energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D g1
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
spectrum.
g1
, 6. A g1 moving object has g1 g1 energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B g1
A moving object has kinetic energy.
g1 g1 g1 g1 g1
7. What is the removal of an electron from an atom called?
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
a. Ionization
b. Pair production g1
c. Irradiation
d. Electricity
ANS: A g1
The removal of an electron from an atom is called ionization.
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
8. Ionizing radiation is capable of removing
g1 g1 g1 g1 g1 from atoms as it passes through
g1 g1 g1 g1 g1
the matter.
g1 g1
a. neutrons
b. protons
c. electrons
d. ions
ANS: C g1
Ionizing radiation is capable of removing electrons from atoms as it passes through the
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
matter.
g1
9. The energy of x-rays is _
g1 g1 g1 g1 g1 .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D g1
X-rays are a form of electromagnetic energy.
g1 g1 g1 g1 g1 g1
10. The biggest source of man-made ionizing radiation exposure to the public is
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
.
a. atomic fallout g1
b. diagnostic x-rays g1
c. smoke detectors g1
d. nuclear power g1
plants
g1
ANS: B g1
Medical x-ray exposure is the biggest source of man-made radiation.
g1 g1 g1 g1 g1 g1 g1 g1 g1
11. In the United States, we are exposed to
g1 g1 g1 g1 g1 g1 g1 _ mSv/year of ionizing radiation from
g1 g1 g1 g1 g1
the natural environment.
g1 g1 g1
a. 0 to 5 g1 g1
, b. 5 to 20g1 g1
c. 20 to g1
90
g1
d. 100 to g1
300
g1
ANS: A g1
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
sources in the United States.
g1 g1 g1 g1 g1
12. is a special quantity of radiologic science. g1 g1 g1 g1 g1 g1
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C g1
Radioactivity is a special quantity of radiologic science.
g1 g1 g1 g1 g1 g1 g1
13. Today, radiology is considered to be a(n)
g1 g1 g1 g1 g1 g1 occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A g1
Today, radiology is considered to be a safe occupation because of effective radiation
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
protection practices.
g1 g1
14. What does ALARA mean?
g1 g1 g1
a. All Level Alert Radiation
g1 g1 g1
g1 Accident
b. As Low As Reasonably
g1 g1 g1
Achievable
g1
c. Always Leave A Restricted Area g1 g1 g1 g1
d. As Low As Regulations Allow
g1 g1 g1 g1
ANS: B g1
ALARA means As Low As Reasonably Achievable.
g1 g1 g1 g1 g1 g1
15. Computed tomography was developed in the
g1 g1 g1 g1 g1 .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C g1
Computed tomography was developed in the 1970s.
g1 g1 g1 g1 g1 g1
16. Filtration is used to g1 .g1 g1
a. absorb low-energy x-rays g1 g1
b. remove high-energy x-rays g1 g1
c. restrict the useful beam to the body part
g1 g1 g1 g1 g1 g1 g1
g1 g1 g1 g1 g1 g1
Bushong: Radiologic Science for Technologists, 13th Edition
g1 g1 g1 g1 g1 g1 g1
MULTIPLE CHOICE g1
1. Matter is measured in g1 g1 g1 .
a. kilograms
b. joules
c. electron volts g1
d. rems
ANS: A g1
Matter is measured in kilograms.
g1 g1 g1 g1
2. Atoms and molecules are the fundamental building blocks of
g1 g1 g1 g1 g1 g1 g1 g1 .
a. energy
b. radiation
c. matter
d. gravity
ANS: C g1
Atoms and molecules are the fundamental building blocks of matter.
g1 g1 g1 g1 g1 g1 g1 g1 g1
3. Ice and steam are examples of two forms of
g1 g1 g1 g1 g1 g1 g1 g1 .
a. matter
b. radiation
c. energy
d. work
ANS: A g1
Ice and steam are examples of two forms of matter.
g1 g1 g1 g1 g1 g1 g1 g1 g1
4. The formula E = mc2 is the basis for the theory that led to the development of
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 .
a. x-rays
b. electromagnetic radiation g1
c. nuclear power g1
d. cathode ray tubes g1 g1
ANS: C g1
The formula E = mc2 is the basis for the theory that led to the development of nuclear
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
power.
g1
5. Radio waves, light, and x-rays are all examples of
g1 g1 g1 g1 g1 g1 g1 g1 energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D g1
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
spectrum.
g1
, 6. A g1 moving object has g1 g1 energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B g1
A moving object has kinetic energy.
g1 g1 g1 g1 g1
7. What is the removal of an electron from an atom called?
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
a. Ionization
b. Pair production g1
c. Irradiation
d. Electricity
ANS: A g1
The removal of an electron from an atom is called ionization.
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
8. Ionizing radiation is capable of removing
g1 g1 g1 g1 g1 from atoms as it passes through
g1 g1 g1 g1 g1
the matter.
g1 g1
a. neutrons
b. protons
c. electrons
d. ions
ANS: C g1
Ionizing radiation is capable of removing electrons from atoms as it passes through the
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
matter.
g1
9. The energy of x-rays is _
g1 g1 g1 g1 g1 .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D g1
X-rays are a form of electromagnetic energy.
g1 g1 g1 g1 g1 g1
10. The biggest source of man-made ionizing radiation exposure to the public is
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
.
a. atomic fallout g1
b. diagnostic x-rays g1
c. smoke detectors g1
d. nuclear power g1
plants
g1
ANS: B g1
Medical x-ray exposure is the biggest source of man-made radiation.
g1 g1 g1 g1 g1 g1 g1 g1 g1
11. In the United States, we are exposed to
g1 g1 g1 g1 g1 g1 g1 _ mSv/year of ionizing radiation from
g1 g1 g1 g1 g1
the natural environment.
g1 g1 g1
a. 0 to 5 g1 g1
, b. 5 to 20g1 g1
c. 20 to g1
90
g1
d. 100 to g1
300
g1
ANS: A g1
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
sources in the United States.
g1 g1 g1 g1 g1
12. is a special quantity of radiologic science. g1 g1 g1 g1 g1 g1
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C g1
Radioactivity is a special quantity of radiologic science.
g1 g1 g1 g1 g1 g1 g1
13. Today, radiology is considered to be a(n)
g1 g1 g1 g1 g1 g1 occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A g1
Today, radiology is considered to be a safe occupation because of effective radiation
g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1 g1
protection practices.
g1 g1
14. What does ALARA mean?
g1 g1 g1
a. All Level Alert Radiation
g1 g1 g1
g1 Accident
b. As Low As Reasonably
g1 g1 g1
Achievable
g1
c. Always Leave A Restricted Area g1 g1 g1 g1
d. As Low As Regulations Allow
g1 g1 g1 g1
ANS: B g1
ALARA means As Low As Reasonably Achievable.
g1 g1 g1 g1 g1 g1
15. Computed tomography was developed in the
g1 g1 g1 g1 g1 .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C g1
Computed tomography was developed in the 1970s.
g1 g1 g1 g1 g1 g1
16. Filtration is used to g1 .g1 g1
a. absorb low-energy x-rays g1 g1
b. remove high-energy x-rays g1 g1
c. restrict the useful beam to the body part
g1 g1 g1 g1 g1 g1 g1
