Radiologic Science for Technologists

Bushong Radiologic Science for Technologists,
12th Edition Test bank A+

,Chapter 01: Essential Concepts of Radiologic Science
Bushong: Radiologic Science for Technologists, 12th Edition


MULTIPLE CHOICE

1. Matter is measured in .
a. kilograms
b. joules
c. electron volts
d. rems

ANS: A
Matter is measured in kilograms.

2. Atoms and molecules are the fundamental building blocks of .
a. energy
b. radiation
c. matter
d. gravity

ANS: C
Atoms and molecules are the fundamental building blocks of matter.

3. Ice and steam are examples of two forms of .
a. matter
b. radiation
c. energy
d. work

ANS: A
Ice and steam are examples of two forms of 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

ANS: C
The formula E = mc2 is the basis for the theory that led to the development of nuclear power.

5. Radio waves, light, and x-rays are all examples of energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic

ANS: D
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
spectrum.

, 6. A moving object has energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic

ANS: B
A moving object has kinetic energy.

7. What is the removal of an electron from an atom called?
a. Ionization
b. Pair production
c. Irradiation
d. Electricity

ANS: A
The removal of an electron from an atom is called ionization.

8. Ionizing radiation is capable of removing from atoms as it passes through the
matter.
a. neutrons
b. protons
c. electrons
d. ions

ANS: C
Ionizing radiation is capable of removing electrons from atoms as it passes through the matter.

9. The energy of x-rays is _ .
a. thermal
b. potential
c. kinetic
d. electromagnetic

ANS: D
X-rays are a form of electromagnetic energy.

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
ANS: B
Medical x-ray exposure is the biggest source of man-made radiation.

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 g g




ANS: A g


We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources in
g g g g g g g g g g g g g g


the United States.
g g g




12. is a special quantity of radiologic science. g g g g g g


a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C g


Radioactivity is a special quantity of radiologic science.
g g g g g g g




13. Today, radiology is considered to be a(n)
g g g g g g occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk

ANS: A g


Today, radiology is considered to be a safe occupation because of effective radiation
g g g g g g g g g g g g


protection practices.
g g




14. What does ALARA mean?
g g g


a. All Level Alert Radiation Accident
g g g g


b. As Low As Reasonably Achievable
g g g g


c. Always Leave A Restricted Area g g g g


d. As Low As Regulations Allow
g g g g




ANS: B g


ALARA means As Low As Reasonably Achievable.
g g g g g g




15. Computed tomography was developed in the
g g g g g .
a. 1890s
b. 1920s
c. 1970s
d. 1990s

ANS: C g


Computed tomography was developed in the 1970s.
g g g g g g




16. Filtration is used to g g . g


a. absorb low-energy x-rays g g


b. remove high-energy x-rays g g


c. restrict the useful beam to the body part imaged
g g g g g g g g


d. fabricate gonadal shields g g




ANS: A g


Filtration is used to absorb low-energy x-rays.
g g g g g g