z z z z z
h Edition Test bank A+
z z z z
,Chapter 01: Essential Concepts of Radiologic Science Bushong:
z z z z z z z z
Radiologic Science for Technologists, 12th Edition
z z z z z
MULTIPLEzCHOICE
1. Matterziszmeasuredzin .
a. kilograms
b. joules
c. electronzvolts
d. rems
ANS:z A
Matterziszmeasuredzinzkilograms.
2. Atomszandzmoleculeszarezthezfundamentalzbuildingzblockszof .
a. energy
b. radiation
c. matter
d. gravity
ANS:z C
Atomszandzmoleculeszarezthezfundamentalzbuildingzblockszofzmatter.
3. Icezandzsteamzarezexampleszofztwozformszof .
a. matter
b. radiation
c. energy
d. work
ANS:z A
Icezandzsteamzarezexampleszofztwozformszofzmatter.
4. ThezformulazEz=zmc2ziszthezbasiszforztheztheoryzthatzledztozthezdevelopmentzof .
a. x-rays
b. electromagneticzradiation
c. nuclearzpower
d. cathodezrayztubes
ANS:z C
ThezformulazEz=zmc2ziszthezbasiszforztheztheoryzthatzledztozthezdevelopmentzofznuclearzpower.
5. Radiozwaves,zlight,zandzx-rayszarezallzexampleszof energy.
a. nuclear
b. thermal
c. electrical
d. electromagnetic
ANS:z D
Electromagneticzenergyzincludeszradiozwaves,zlight,zandzx-rayszaszwellzaszotherzpartszofzthezspectrum.
, 6. Azmovingzobjectzhas energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS:z B
Azmovingzobjectzhaszkineticzenergy.
7. Whatziszthezremovalzofzanzelectronzfromzanzatomzcalled?
a. Ionization
b. Pairzproduction
c. Irradiation
d. Electricity
ANS:z A
Thezremovalzofzanzelectronzfromzanzatomziszcalledzionization.
8. Ionizingzradiationziszcapablezofzremoving
fromzatomszaszitzpasseszthroughzthez
matter.
a. neutrons
b. protons
c. electrons
d. ions
ANS:z C
Ionizingzradiationziszcapablezofzremovingzelectronszfromzatomszaszitzpasseszthroughzthezmatter.
9. Thezenergyzofzx-rayszisz_ .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS:z D
X-rayszarezazformzofzelectromagneticzenergy.
10. Thezbiggestzsourcezofzman-madezionizingzradiationzexposureztozthezpubliczis
.
a. atomiczfallout
b. diagnosticzx-rays
c. smokezdetectors
d. nuclearzpowerzplants
ANS:z B
Medicalzx-rayzexposureziszthezbiggestzsourcezofzman-madezradiation.
11. InzthezUnitedzStates,zwezarezexposedzto
_zmSv/yearzofzionizingzradiationzfromzthez
naturalzenvironment.
a. 0ztoz5
, b. 5ztoz20
c. 20ztoz90
d. 100ztoz300
ANS:z A
Wezarezexposedztozaboutz3zmSv/yrzofzionizingzradiationzfromznaturalzenvironmentalzsourceszinzth
ezUnitedzStates.
12. iszazspecialzquantityzofzradiologiczscience.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS:z C
Radioactivityziszazspecialzquantityzofzradiologiczscience.
13. Today,zradiologyziszconsideredztozbeza(n) occupation.
a. safe
b. unsafe
c. dangerous
d. high-risk
ANS:z A
Today,zradiologyziszconsideredztozbezazsafezoccupationzbecausezofzeffectivezradiationzprotectionz
practices.
14. WhatzdoeszALARAzmean?
a. AllzLevelzAlertzRadiationzAccident
b. AszLowzAszReasonablyzAchievable
c. AlwayszLeavezAzRestrictedzArea
d. AszLowzAszRegulationszAllow
ANS:z B
ALARAzmeanszAszLowzAszReasonablyzAchievable.
15. Computedztomographyzwaszdevelopedzinzthe .
a. 1890s
b. 1920s
c. 1970s
d. 1990s
ANS:z C
Computedztomographyzwaszdevelopedzinzthez1970s.
16. Filtrationziszusedzto .
a. absorbzlow-energyzx-rays
b. removezhigh-energyzx-rays
c. restrictzthezusefulzbeamztozthezbodyzpartzimaged
d. fabricatezgonadalzshields
ANS:z A
Filtrationziszusedztozabsorbzlow-energyzx-rays.