Edition by Bushong Chapter 1-40 [Updated 2025]
TEST BANK
,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.n
atural.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. 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.p
ractices.
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.