DANB RHS PRACTICE TEST WITH COMPLETE SOLUTIONS GRADED A+
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Course
DANB RHS
Institution
DANB RHS
DANB RHS PRACTICE TEST WITH COMPLETE SOLUTIONS GRADED A+
When taking radiographs on a small child who cannot hold the film intra-orally, the dental assistant should - Answer-ask a parent or guardian to hold the film.
The BEST radiograph to evaluate a suspected salivary stone in the submandibu...
DANB RHS PRACTICE TEST WITH
COMPLETE SOLUTIONS GRADED
A+
When taking radiographs on a small child who cannot hold the film intra-orally, the
dental assistant should - Answer-ask a parent or guardian to hold the film.
The BEST radiograph to evaluate a suspected salivary stone in the submandibular
gland is a/an - Answer-occlusal
To produce ionizing radiation, an atom must - Answer-add an electron.
According to the inverse square law, when changing the PID length from 8 to 16 inches,
the beam's intensity is - Answer-1/4 as intense
The amount of radiation and exposure time needed to produce a diagnostic radiograph
is best determined by - Answer-film speed
Which of the following quality control tests evaluates safelighting in the darkroom? -
Answer-Coin test
When taking a panoramic radiograph, the patient's head should be oriented - Answer-
with the midsagittal plane perpendicular to the floor.
Which of the following errors occur when the vertical angulation is incorrect? - Answer-
Elongation
Which of the following radiation injury theories describes cells that are damaged by way
of absorption? - Answer-Indirect
During film processing, which of the following can cause a dark image? - Answer-
Overdeveloped film
Which of the following may cause film fogging? - Answer-Using expired film
If there are no teeth to serve as guides, which of the following landmarks indicates a
maxillary molar area radiograph? - Answer-Tuberosity
Which of the following is the first step in processing radiographic film? - Answer-
Developing
, Leakage radiation is defined as any radiation that is - Answer-from the primary beam.
Which of the following radiographic errors is caused by removing a film too quickly from
a tightly packed box? - Answer-Static electricity
Before exposing radiographs on a minor, the dental assistant should - Answer-obtain
consent from parent or legal guardian.
The Frankfort Plane is an imaginary plane passing through the - Answer-external
auditory meatus to the floor of the orbit.
Which of the following results in a double image radiograph? - Answer-Exposing the
same film twice
An underexposed film will appear - Answer-light
How frequently should processing solutions be replenished? - Answer-Daily
Which of the following is the measurement of force that refers to the potential difference
between two electrical charges? - Answer-Voltage
Radiographs appear dark after processing when the developing solution is - Answer-too
warm.
Which of the following regulates the manufacturing and installation of x-ray equipment?
- Answer-Federal government
Which of the following landmarks would be seen in a maxillary anterior periapical
radiograph? - Answer-Incisive foramen
If disposable barriers are not used during a radiographic procedure all clinical surfaces
should be - Answer-disinfected.
Which of the following condition may mimic caries on an intraoral radiograph? - Answer-
Root resorption
Which of the following PID produces the greatest amount of secondary radiation? -
Answer-Closed-end plastic cone
The expiration date on dental x-ray film is printed - Answer-on the film packaging box.
Which of the following landmarks is useful when mounting films of the mandibular
posterior area? - Answer-Mental foramen
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