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RHS EXAM, PRACTICE EXAM AND STUDY GUIDE EXAM QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
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RHS EXAM, PRACTICE EXAM AND STUDY GUIDE EXAM QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
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RHS EXAM, PRACTICE EXAM AND STUDY GUIDE EXAM 2024-2025QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
What charge do neutrons have? - ANSWER-neutral (no charge)
What are the 3 components to an X-ray Machine? - ANSWER-control panel, extension arm,
tubehead
A atom contains an equal number of protons (positive charges) and electrons (negative
charges)
a) neutral
b) undefined
c) unbalanced - ANSWER-a) neutral
If the atom gains an electron, it has more electrons than protons and neutrons, and therefore it
has a charge
a) positive
b) negative
c) neutral
d) unbalanced - ANSWER-b) negative
What does a control panel contain? - ANSWER-1) master switch, indicator light
2) exposure button, indicator light
3) control devices (kV, mA, time)
Which is a measurement of tissue damage from x-ray energy? - ANSWER-- Radiation absorbed
dose
To help desensitize the tissue prior to fil placement, the dental assistant should do what? -
ANSWER--Rub a finger along the tissues where the film touches.
,Energy carried by waves or stream of particles is what?
a) X-radiation
b) x-ray
c) radiation - ANSWER-C) radiation
In dental imaging, the term is used to describe the mean energy or penetrating ability of
the x-ray beam
a) quality
b) quantity
c) kilovoltage
d) milamperage - ANSWER-a) quality
If the kilovoltage is increased, the resultant image exhibits an density and appears
a) increased, darker
b) decreased, lighter
c) radiopaque, darker
d) radiolucent, lighter - ANSWER-a) increased
What is the primary function of collimation? - ANSWER--To restrict the size of the beam.
Added filtration in the x-ray tubehead protects what? - ANSWER--The Patient.
To prevent cross-contamination, wipe the counter top with what? - ANSWER--An EPA-
approved disinfectant.
Patients receive less radiation when using which: A round PID, External PID or Rectangular PID?
- ANSWER--Rectangular PID.
,Which of these radiographic errors is caused by removing a film too quickly from a tightly
packed box? Reticulation, Cone Cut or Static Electricity? - ANSWER--Static Electricity.
Paralleling technique require the film to be place how? - ANSWER--Away from the tooth,
towards the middle of the oral cavity.
When using a 16- inch PID compared to an 8-inch PID, should you increase or decrease the
exposure time? - ANSWER--Increase the exposure time.
What is the optimal temperature of the developer in automatic processing? - ANSWER--80-95
Degrees F
What is duplicating film coated with? - ANSWER--One-sided emulsion
Which of the following is a disposable intraoral x-ray film holder device: Rinn XCP, Stabe or
EeZee Grip? - ANSWER--Stabe
What is the most common radiographic exposure used to evaluate a dental implant on an
adult? - ANSWER--Periapical
What error may cause film fogging? - ANSWER--Using expired film.
, Leakage radiation is defined as any radiation that it from the primary beam or the secondary
beam? - ANSWER--From the primary beam.
What is the maximum permissible does (MPD) of ionizing radiation for occupational exposure -
ANSWER--5.0 rem per year
What size film is the most effective when places vertically, in the anterior region, to evaluare
caries and periodontal health? - ANSWER--Size 4
Radiation injury can be measured by dose rate, somatic dose or kvp? - ANSWER-- Dose rate
ALARA is primarily concerned with what kind of radiation? - ANSWER--artificial radiation
Black-scatter radiation to the film is prevented by what? - ANSWER--the lead foil
What is the first step in processing radiographic film- rinsing, drying, fixing or developing? -
ANSWER--Developing
On a full mouth series with 18 films, how many anterior films are exposed? - ANSWER--6
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