DANB RHS (2025) Actual Exam Questions
and Answers A+ Graded
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 .- .CORRECT .ANSWER-c
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 .- .CORRECT .ANSWER-a
a .form .of .energy .is .
a)heat
b)light
c)electricity
d) .x-radiation
e) .all .of .the .above .- .CORRECT .ANSWER-e
Photons .are .described .as .
a)bundles .of .energy
b) .dental .film .mounts
c) .electrically .neutral .particles
d) .negatively .charged .atomic .particles .- .CORRECT .ANSWER-a
Limited .Penetration .long .wavelength .radiation .is .known .as .
a) .short .wavelengths
b) .hard .radiation
c) .soft .radiation
d) .desirable .wavelengths .- .CORRECT .ANSWER-c
Background .Radiation .originates .from:
a)enviornment
b) .outerspace
c) .radionuclides
, d) .terrestrail .radiation
e) .all .of .the .above .- .CORRECT .ANSWER-e
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 .- .CORRECT .ANSWER-a
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 .- .CORRECT .ANSWER-e
Hard .Radiation .is .considered .to .be .
a) .shortwavelengths .with .great .penetrating .power. .most .deseriable .and .capable
.of .penetrating .oral .structures
b) .long .wavelengths .with .limited .penetrating .power. .unsuitable .for .exposing
.radiographs .- .CORRECT .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 .- .CORRECT .ANSWER-d
Penumbra .is .defined .as .
a)magnification .of .an .object
b) .diverging .xrays
c) .distortion .of .the .shape .of .an .image
d) .fuzzy .outline .of .a .radiographic .image .- .CORRECT .ANSWER-d
What .are .the .properties .of .electromagnectic .radiation?
a) .travels .at .the .speed .of .light
b) .no .electrical .charge .and .no .mass .or .weight
c) .measurable .energies
d) .a .& .b .
e) .all .of .the .above .- .CORRECT .ANSWER-e
Ionizing .types .of .radiation .include .
and Answers A+ Graded
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 .- .CORRECT .ANSWER-c
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 .- .CORRECT .ANSWER-a
a .form .of .energy .is .
a)heat
b)light
c)electricity
d) .x-radiation
e) .all .of .the .above .- .CORRECT .ANSWER-e
Photons .are .described .as .
a)bundles .of .energy
b) .dental .film .mounts
c) .electrically .neutral .particles
d) .negatively .charged .atomic .particles .- .CORRECT .ANSWER-a
Limited .Penetration .long .wavelength .radiation .is .known .as .
a) .short .wavelengths
b) .hard .radiation
c) .soft .radiation
d) .desirable .wavelengths .- .CORRECT .ANSWER-c
Background .Radiation .originates .from:
a)enviornment
b) .outerspace
c) .radionuclides
, d) .terrestrail .radiation
e) .all .of .the .above .- .CORRECT .ANSWER-e
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 .- .CORRECT .ANSWER-a
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 .- .CORRECT .ANSWER-e
Hard .Radiation .is .considered .to .be .
a) .shortwavelengths .with .great .penetrating .power. .most .deseriable .and .capable
.of .penetrating .oral .structures
b) .long .wavelengths .with .limited .penetrating .power. .unsuitable .for .exposing
.radiographs .- .CORRECT .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 .- .CORRECT .ANSWER-d
Penumbra .is .defined .as .
a)magnification .of .an .object
b) .diverging .xrays
c) .distortion .of .the .shape .of .an .image
d) .fuzzy .outline .of .a .radiographic .image .- .CORRECT .ANSWER-d
What .are .the .properties .of .electromagnectic .radiation?
a) .travels .at .the .speed .of .light
b) .no .electrical .charge .and .no .mass .or .weight
c) .measurable .energies
d) .a .& .b .
e) .all .of .the .above .- .CORRECT .ANSWER-e
Ionizing .types .of .radiation .include .
