Test Bank for Radiologic Science for Technologists 13th Edition By Stewart C. Bushong, and Elizabeth Shields| 9780323765367| All Chapters| LATEST

,Chapter 01: Essential Concepts of Radiologic Science Busho
n2 n2 n2 n2 n2 n2 n2


ng: Radiologic Science for Technologists, 13th Edition
n2 n2 n2 n2 n2 n2




MULTIPLE CHOICE n2




1. Matter is measured inn2 n2 n2 .
a. kilograms
b. joules
c. electron volts n2


d. rems
ANS: A n2


Matter is measured in kilograms.
n2 n2 n2 n2




2. Atoms and molecules are the fundamental building blocks of
n2 n2 n2 n2 n2 n2 n2 n2 .
a. energy
b. radiation
c. matter
d. gravity
ANS: C n2


Atoms and molecules are the fundamental building blocks of matter.
n2 n2 n2 n2 n2 n2 n2 n2 n2




3. Ice and steam are examples of two forms of
n2 n2 n2 n2 n2 n2 n2 n2 .
a. matter
b. radiation
c. energy
d. work
ANS: A n2


Ice and steam are examples of two forms of matter.
n2 n2 n2 n2 n2 n2 n2 n2 n2




4. The formula E = mc2 is the basis for the theory that led to the development of
n2 n2 n2 n2
n2
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 .
a. x-rays
b. electromagnetic radiation n2


c. nuclear power n2


d. cathode ray tubes n2 n2




ANS: C n2


The formula E = mc2 is the basis for the theory that led to the development of nuclear power.
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2




5. Radio waves, light, and x-rays are all examples of
n2 n2 n2 n2 n2 n2 n2 n2 energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS: D n2


Electromagnetic energy includes radio waves, light, and x- n2 n2 n2 n2 n2 n2 n2


rays as well as other parts of the spectrum.
n2 n2 n2 n2 n2 n2 n2 n2

, 6. A n2 moving object has n2 n2 energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B n2


A moving object has kinetic energy.
n2 n2 n2 n2 n2




7. What is the removal of an electron from an atom called?
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2


a. Ionization
b. Pair production n2


c. Irradiation
d. Electricity
ANS: A n2


The removal of an electron from an atom is called ionization.
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2




8. Ionizing radiation is capable of removing
n2 n2 n2 n2 n2


from atoms as it passes through th
n2 n2 n2 n2 n2 n2


e matter.
n2


a. neutrons
b. protons
c. electrons
d. ions
ANS: C n2


Ionizing radiation is capable of removing electrons from atoms as it passes through the matter.
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2




9. The energy of x-rays is _
n2 n2 n2 n2 n2 .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D n2


X-rays are a form of electromagnetic energy.
n2 n2 n2 n2 n2 n2




10. The biggest source of man-made ionizing radiation exposure to the public is
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2


.
a. atomic fallout n2


b. diagnostic x-rays n2


c. smoke detectors n2


d. nuclear power plants n2 n2




ANS: B n2


Medical x-ray exposure is the biggest source of man-made radiation.
n2 n2 n2 n2 n2 n2 n2 n2 n2




11. In the United States, we are exposed to
n2 n2 n2 n2 n2 n2 n2


_ mSv/year of ionizing radiation from th
n2 n2 n2 n2 n2 n2


e natural environment.
n2 n2


a. 0 to 5 n2 n2


b. 5 to 20 n2 n2


c. 20 to 90 n2 n2

, d. 100 to 300 n2 n2




ANS: A n2


We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2


in the United States.
n2 n2 n2




12. Today, radiology is considered to be a(n)
n2 n2 n2 n2 n2 n2 occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A n2


Today, radiology is considered to be a safe occupation because of effective radiation protect
n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2


ion practices.
n2




13. is a special quantity of radiologic science.
n2 n2 n2 n2 n2 n2


a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C n2


Radioactivity is a special quantity of radiologic science.
n2 n2 n2 n2 n2 n2 n2




14. What does ALARA mean?
n2 n2 n2


a. All Level Alert Radiation Accident
n2 n2 n2 n2


b. As Low As Reasonably Achievable
n2 n2 n2 n2


c. Always Leave A Restricted Area n2 n2 n2 n2


d. As Low As Regulations Allow
n2 n2 n2 n2




ANS: B n2


ALARA means As Low As Reasonably Achievable.
n2 n2 n2 n2 n2 n2




15. Computed tomography was developed in the
n2 n2 n2 n2 n2 .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS: C n2


Computed tomography was developed in the 1970s.
n2 n2 n2 n2 n2 n2




16. Filtration is used to n2 .
n2 n2


a. absorb low-energy x-rays n2 n2


b. remove high-energy x-rays n2 n2


c. restrict the useful beam to the body part imaged
n2 n2 n2 n2 n2 n2 n2 n2


d. fabricate gonadal shields n2 n2




ANS: A n2


Filtration is used to absorb low-energy x-rays.
n2 n2 n2 n2 n2 n2