1 | Page
DANB RHS STUDY QUESTIONS AND
ANSWERS
Storing unexposed radiographic film in high humidity conditions
may cause - correct answer- Film fog
The shorter the wavelength of electromagnetic radiation, the
greater the - correct answer- Energy
Which of the following radiograph techniques is recommended
for a patient with a shallow palate? - correct answer- Bisecting
Which of the following landmarks are located by the midline of
the mandible? - correct answer- Genial tubercles
Which of the following should be labeled on the radiographic
mount prior to film duplication? - correct answer- Right and left
sides
When exposing radiographs, what is the minimum distance the
operator should stand from the tube head? - correct answer- 6
feet
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Which of the following may cause film fogging? - correct
answer- Using expired film
A panoramic image appears to have a "reverse smile" when the
- correct answer- Frankfort plane is angled upward
To assist the patient in controlling the gag reflex, the dental
assistant should - correct answer- Use a distraction technique
Somatic effects of radiation do NOT have damaging effects on -
correct answer- Offspring
When the tubehead drifts, the first step the dental assistant
should take is to - correct answer- Stop using the machine
What is the primary advantage in using digital radiography? -
correct answer- Reduces the radiation to patient
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The best way to prevent cross-contamination from an exposed
film packet is by - correct answer- Using individual barrier
envelopes
When radiographs are mounted with the embossed dot
appearing outward, this is known as - correct answer- Facial
mounting
While exposing x-ray films, radiation deflecting off the patient's
head is called - correct answer- Scatter radiation
Which of the following is a disposable intraoral x-ray film holder
device? - correct answer- Stabe®
The position-indicating device (PID) shape that most effectively
reduces patient exposure to radiation is - correct answer-
Rectangular
Which of the following is most likely to cause a stored
radiograph to turn brown over time? - correct answer-
Underwashing
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The annual maximum accumulated dose (MAD) of radiation for
dental assistant is based on which of the following calculations?
- correct answer- Age minus 18 times 5 rems/year
The amount of radiation and exposure time needed to produce
a diagnostic radiograph is best determined by - correct answer-
Film speed
Which of the following can be used to measure excessive
occupational exposure? - correct answer- Film badge
The endentulous radiographic series may include all of the
following EXCEPT - correct answer- Bitewings
Emulsion damage to a film is caused by - correct answer-
Improper handling of the film
When exposing a posterior periapical radiograph on an adult
patient with no intraoral restrictions, which size film should be
used? - correct answer- 2
DANB RHS STUDY QUESTIONS AND
ANSWERS
Storing unexposed radiographic film in high humidity conditions
may cause - correct answer- Film fog
The shorter the wavelength of electromagnetic radiation, the
greater the - correct answer- Energy
Which of the following radiograph techniques is recommended
for a patient with a shallow palate? - correct answer- Bisecting
Which of the following landmarks are located by the midline of
the mandible? - correct answer- Genial tubercles
Which of the following should be labeled on the radiographic
mount prior to film duplication? - correct answer- Right and left
sides
When exposing radiographs, what is the minimum distance the
operator should stand from the tube head? - correct answer- 6
feet
,2 | Page
Which of the following may cause film fogging? - correct
answer- Using expired film
A panoramic image appears to have a "reverse smile" when the
- correct answer- Frankfort plane is angled upward
To assist the patient in controlling the gag reflex, the dental
assistant should - correct answer- Use a distraction technique
Somatic effects of radiation do NOT have damaging effects on -
correct answer- Offspring
When the tubehead drifts, the first step the dental assistant
should take is to - correct answer- Stop using the machine
What is the primary advantage in using digital radiography? -
correct answer- Reduces the radiation to patient
,3 | Page
The best way to prevent cross-contamination from an exposed
film packet is by - correct answer- Using individual barrier
envelopes
When radiographs are mounted with the embossed dot
appearing outward, this is known as - correct answer- Facial
mounting
While exposing x-ray films, radiation deflecting off the patient's
head is called - correct answer- Scatter radiation
Which of the following is a disposable intraoral x-ray film holder
device? - correct answer- Stabe®
The position-indicating device (PID) shape that most effectively
reduces patient exposure to radiation is - correct answer-
Rectangular
Which of the following is most likely to cause a stored
radiograph to turn brown over time? - correct answer-
Underwashing
, 4 | Page
The annual maximum accumulated dose (MAD) of radiation for
dental assistant is based on which of the following calculations?
- correct answer- Age minus 18 times 5 rems/year
The amount of radiation and exposure time needed to produce
a diagnostic radiograph is best determined by - correct answer-
Film speed
Which of the following can be used to measure excessive
occupational exposure? - correct answer- Film badge
The endentulous radiographic series may include all of the
following EXCEPT - correct answer- Bitewings
Emulsion damage to a film is caused by - correct answer-
Improper handling of the film
When exposing a posterior periapical radiograph on an adult
patient with no intraoral restrictions, which size film should be
used? - correct answer- 2
