Digital Radiography Utilizes the following approach
a)filmless radiographic computer imaging system
b)electronically charged plated imaging system
c)nonionizing radio frequency imaging system
d) none of the above - ANSWER a
Professor Wilhelm Roentgen
a)advocated radiology in the u.s
b)exposed the first radiographs in the u.s
c)discovered the xray
d)employed the first dental auxiliary in the united states - ANSWER c
a form of energy is
a)heat
b)light
c)electricity
d) x-radiation
e) all of the above - ANSWER e
Photons are described as
1
,a)bundles of energy
b) dental film mounts
c) electrically neutral particles
d) negatively charged atomic particles - ANSWER a
Ionizing Radiation produces ions when
a) radiation passes through the body tissues
b) ions compress into the atmosphere
c) isotopes flow freely on air
d) none of the above - ANSWER a
Limited Penetration long wavelength radiation is known as
a) short wavelengths
b) hard radiation
c) soft radiation
d) desirable wavelengths - ANSWER c
Background Radiation originates from:
a)enviornment
b) outerspace
c) radionuclides
d) terrestrail radiation
e) all of the above - ANSWER e
2
, Common Characteristics of radiation are
a) wavelengths that determine the penetrating power of the energy
b) forms of electromagnetic radiation
c) the giving off of electrical fields at right angles to the path of travel
d) straight lines that travel at 186,000 miles per second
e) all of the above - ANSWER e
Hard Radiation is considered to be
a) shortwavelengths with great penetrating power. most deseriable and capable of penetrat-
ing oral structures
b) long wavelengths with limited penetrating power. unsuitable for exposing radiographs -
ANSWER a
an electron is defined as
a) anything that occupies space and has mass
b) electrically neutral tiny particle
c) center of the atom
d) negatively charged atomic particle - ANSWER d
Penumbra is defined as
a)magnification of an object
b) diverging xrays
c) distortion of the shape of an image
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a)filmless radiographic computer imaging system
b)electronically charged plated imaging system
c)nonionizing radio frequency imaging system
d) none of the above - ANSWER a
Professor Wilhelm Roentgen
a)advocated radiology in the u.s
b)exposed the first radiographs in the u.s
c)discovered the xray
d)employed the first dental auxiliary in the united states - ANSWER c
a form of energy is
a)heat
b)light
c)electricity
d) x-radiation
e) all of the above - ANSWER e
Photons are described as
1
,a)bundles of energy
b) dental film mounts
c) electrically neutral particles
d) negatively charged atomic particles - ANSWER a
Ionizing Radiation produces ions when
a) radiation passes through the body tissues
b) ions compress into the atmosphere
c) isotopes flow freely on air
d) none of the above - ANSWER a
Limited Penetration long wavelength radiation is known as
a) short wavelengths
b) hard radiation
c) soft radiation
d) desirable wavelengths - ANSWER c
Background Radiation originates from:
a)enviornment
b) outerspace
c) radionuclides
d) terrestrail radiation
e) all of the above - ANSWER e
2
, Common Characteristics of radiation are
a) wavelengths that determine the penetrating power of the energy
b) forms of electromagnetic radiation
c) the giving off of electrical fields at right angles to the path of travel
d) straight lines that travel at 186,000 miles per second
e) all of the above - ANSWER e
Hard Radiation is considered to be
a) shortwavelengths with great penetrating power. most deseriable and capable of penetrat-
ing oral structures
b) long wavelengths with limited penetrating power. unsuitable for exposing radiographs -
ANSWER a
an electron is defined as
a) anything that occupies space and has mass
b) electrically neutral tiny particle
c) center of the atom
d) negatively charged atomic particle - ANSWER d
Penumbra is defined as
a)magnification of an object
b) diverging xrays
c) distortion of the shape of an image
3
