Test Bank for Radiologic Science for Technologists: Physics, Biology, and Protection 12th Edition by Stewart C. Bushong 2025/2026

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

ANS: | A
We |are |exposed |to |about |3 |mSv/yr |of |ionizing |radiation |from |natural |environmental |sources |in
|the |United |States.




12. is |a |special |quantity |of |radiologic |science.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: | C
Radioactivity |is |a |special |quantity |of |radiologic |science.

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

ANS: | A
Today, |radiology |is |considered |to |be |a |safe |occupation |because |of |effective |radiation |protection
|practices.




14. What |does |ALARA |mean?
a. All |Level |Alert |Radiation |Accident
b. As |Low |As |Reasonably |Achievable
c. Always |Leave |A |Restricted |Area
d. As |Low |As |Regulations |Allow

ANS: | B
ALARA |means |As |Low |As |Reasonably |Achievable.

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

ANS: | C
Computed |tomography |was |developed |in |the |1970s.

16. Filtration |is |used |to .
a. absorb |low-energy |x-rays
b. remove |high-energy |x-rays
c. restrict |the |useful |beam |to |the |body |part |imaged
d. fabricate |gonadal |shields

ANS: | A
Filtration |is |used |to |absorb |low-energy |x-rays.