Test Bank for Digital Radiography and PACS, 4th - 2023 All Chapters

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

,Chapter7101:71Essential71Concepts71of71Radiologic71Science71B
ushong:71Radiologic71Science71for71Technologists,7112th71Editio
n


MULTIPLE71CHOICE

1. Matter71is71measured71in .
a. kilograms
b. joules
c. electron71volt
s
d. rems

ANS:7 1 A
Matter71is71measured71in71kilograms.

2. Atoms71and71molecules71are71the71fundamental71building71blocks71of .
a. energy
b. radiation
c. matter
d. gravity

ANS:7 1 C
Atoms71and71molecules71are71the71fundamental71building71blocks71of71matter.

3. Ice71and71steam71are71examples71of71two71forms71of .
a. matter
b. radiation
c. energy
d. work

ANS:7 1 A
Ice71and71steam71are71examples71of71two71forms71of71matter.

4. The71formula71E71=71mc271is71the71basis71for71the71theory71that71led71to71the71development71of .
a. x-rays
b. electromagnetic71radiatio
n
c. nuclear71power
d. cathode71ray71tubes

ANS:7 1 C
The71formula71E71=71mc271is71the71basis71for71the71theory71that71led71to71the71development71of71nu
clear71power.

5. Radio71waves,71light,71and71x-rays71are71all71examples71of energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic

ANS:7 1 D
Electromagnetic71energy71includes71radio71waves,71light,71and71x-
rays71as71well71as71other71parts71of71the71spectrum.

, 6. A71moving71object71has energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic

ANS:7 1 B
A71moving71object71has71kinetic71energy.

7. What71is71the71removal71of71an71electron71from71an71atom71called?
a. Ionization
b. Pair71productio
n
c. Irradiation
d. Electricity

ANS:7 1 A
The71removal71of71an71electron71from71an71atom71is71called71ionization.

8. Ionizing71radiation71is71capable71of71removing
from71atoms71as71it71passes71throug
h71the71matter.
a. neutrons
b. protons
c. electrons
d. ions

ANS:7 1 C
Ionizing71radiation71is71capable71of71removing71electrons71from71atoms71as71it71passes71through71t
he71matter.

9. The71energy71of71x-rays71is71_ .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS:7 1 D
X-rays71are71a71form71of71electromagnetic71energy.

10. The71biggest71source71of71man-made71ionizing71radiation71exposure71to71the71public71is
.
a. atomic71fallout
b. diagnostic71x-rays
c. smoke71detectors
d. nuclear71power71plan
ts
ANS:7 1 B
Medical71x-ray71exposure71is71the71biggest71source71of71man-made71radiation.

11. In71the71United71States,71we71are71exposed71to

, _71mSv/year71of71ionizing71radiation71fro
m71the71natural71environment.
a. 071to715
b. 571to712
0
c. 2071to71
90
d. 10071to713
00
ANS:7 1 A
We71are71exposed71to71about71371mSv/yr71of71ionizing71radiation71from71natural71environment
al71sources71in71the71United71States.

12. is71a71special71quantity71of71radiologic71science.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS:7 1 C
Radioactivity71is71a71special71quantity71of71radiologic71science.

13. Today,71radiology71is71considered71to71be71a(n) occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk

ANS:7 1 A
Today,71radiology71is71considered71to71be71a71safe71occupation71because71of71effective71radiati
on71protection71practices.

14. What71does71ALARA71mean?
a. All71Level71Alert71Radiation71Accid
ent
b. As71Low71As71Reasonably71Achiev
able
c. Always71Leave71A71Restricted71Are
a
d. As71Low71As71Regulations71Allow

ANS:7 1 B
ALARA71means71As71Low71As71Reasonably71Achievable.

15. Computed71tomography71was71developed71in71the .
a. 1890s
b. 1920s
c. 1970s
d. 1990s

ANS:7 1 C
Computed71tomography71was71developed71in71the711970s.