TEST BANK Radiologic Science for Technologists 12th Edition by Elizabeth Shields, Stewart C. Bushong

TEST BANK
Radiologic Science for Technologists 12th Edition by
Elizabeth Shields, Stewart C. Bushong

,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`t
he`United`States.

12. 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.


13. 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.

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.