Test Bank For Radiologic Science for Technologists 12th Edition by Bushong Chapter 1-40 [Updated 2026]

Test3Bank3For3Radiologic3Science3for3Technologists312th33E
dition3by3Bushong3Chapter31-403[Updated32024]




TEST BANK 3

,Chapter301:3Essential3Concepts3of3Radiologic3Science3Bushon
g:3Radiologic3Science3for3Technologists,312th3Edition


MULTIPLE3CHOICE

1. Matter3is3measured3in .
a. kilograms
b. joules
c. electron3volts
d. rems

ANS:3 A
Matter3is3measured3in3kilograms.

2. Atoms3and3molecules3are3the3fundamental3building3blocks3of .
a. energy
b. radiation
c. matter
d. gravity
ANS:3 C
Atoms3and3molecules3are3the3fundamental3building3blocks3of3matter.

3. Ice3and3steam3are3examples3of3two3forms3of .
a. matter
b. radiation
c. energy
d. work
ANS:3 A
Ice3and3steam3are3examples3of3two3forms3of3matter.

4. The3formula3E3=3mc23 is3the3basis3for3the3theory3that3led3to3the3development3 of .
a. x-rays
b. electromagnetic3radiation
c. nuclear3power
d. cathode3ray3tubes

ANS:3 C
The3formula3E3=3mc23is3the3basis3for3the3theory3that3led3to3the3development3of3nuclear3power.

5. Radio3waves,3light,3and3x-rays3are3all3examples3of energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS:3 D
Electromagnetic3energy3includes3radio3waves,3light,3and3x-
rays3as3well3as3other3parts3of3the3spectrum.

, 6. A3moving3object3has energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic

ANS:3 B
A3moving3object3has3kinetic3energy.

7. What3is3the3removal3of3an3electron3from3an3atom3called?
a. Ionization
b. Pair3production
c. Irradiation
d. Electricity
ANS:3 A
The3removal3of3an3electron3from3an3atom3is3called3ionization.

8. Ionizing3radiation3is3capable3of3removing
from3atoms3as3it3passes3through3th
e3matter.
a. neutrons
b. protons
c. electrons
d. ions

ANS:3 C
Ionizing3radiation3is3capable3of3removing3electrons3from3atoms3as3it3passes3through3the3matter.

9. The3energy3of3x-rays3is3_ .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS:3 D
X-rays3are3a3form3of3electromagnetic3energy.

10. The3biggest3source3of3man-made3ionizing3radiation3exposure3to3the3public3is
.
a. atomic3fallout
b. diagnostic3x-rays
c. smoke3detectors
d. nuclear3power3plants
ANS:3 B
Medical3x-ray3exposure3is3the3biggest3source3of3man-made3radiation.

11. In3the3United3States,3we3are3exposed3to
_3mSv/year3of3ionizing3radiation3from3th
e3natural3environment.
a. 03to35
b. 53to320
c. 203to390

, d. 1003to3300
ANS:3 A
We3are3exposed3to3about333mSv/yr3of3ionizing3radiation3from3natural3environmental3sources3i
n3the3United3States.

12. Today,3radiology3is3considered3to3be3a(n) occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS:3 A
Today,3radiology3is3considered3to3be3a3safe3occupation3because3of3effective3radiation3protecti
on3practices.

13. is3a3special3quantity3of3radiologic3science.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS:3 C
Radioactivity3is3a3special3quantity3of3radiologic3science.

14. What3does3ALARA3mean?
a. All3Level3Alert3Radiation3Accident
b. As3Low3 As3Reasonably3Achievable
c. Always3Leave3A3Restricted3Area
d. As3Low3 As 3Regulations3Allow

ANS:3 B
ALARA3means3As3Low3As3Reasonably3Achievable.

15. Computed3tomography3was3developed3in3the .
a. 1890s
b. 1920s
c. 1970s
d. 1990s

ANS:3 C
Computed3tomography3was3developed3in3the31970s.

16. Filtration3is3used3to .
a. absorb3low-energy3x-rays
b. remove3high-energy3x-rays
c. restrict3the3useful3beam3to3the3body3part3imaged
d. fabricate3gonadal3shields
ANS:3 A
Filtration3is3used3to3absorb3low-energy3x-rays.