DENTAL RADIOLOGY CERTIFICATION TEST ACTUAL
QUESTIONS AND ANSWERS VERIFIED BY EXPERT
100% CORRECT | UPDATED 2024-2025
The part of an atom that carries a negative charge is a/an - ANSWER Electron
The quantity of x-rays emitted is primarily dependent upon the - ANSWER
Milliamperage setting
An aluminum filter in a dental x-ray unit functions to - ANSWER Absorb x-rays
of long wavelength
Light radiographs can be caused by - ANSWER Film packet reversal, low MA
setting, and an exhausted developer
What are the principles of ideal projection - ANSWER The central ray should
strike the tooth at a 90 degree angle, the source-object distance should be as long
as possible, the source size should be as small as possible, and the tooth and the
film should be parallel to each other
What can cause a dark radiograph - ANSWER Too much time in developer and
too high MA or KVP setting
If the directions on the film package call for an exposure time of 1/6 second, how
many impulses should the operator select? - ANSWER 10
, How frequently should a complete radiographic survey (CRS) be exposes on a
typical adult patient? - ANSWER As frequently as indicated by the patient's
clinical needs a
Which Standard International Units is equivalent to the rem - ANSWER Sievert
In "real time direct" digital radiography, what is used in place of an x-ray film? -
ANSWER Sensor
In digital radiography, using phosphor plates: - ANSWER Images are received
and stored on a low phosphor plate, images have to be transferred to a scanner,
and the images on the plate are erased by exposure to light
If a film image is foreshortened, that means: - ANSWER There was too much
vertical angulation
If a herringbone pattern shows up on a radiograph, this means: - ANSWER The
film packet was reversed
Each successive panoramic radiograph appears lighter than the one before. What
adjustment should be made - ANSWER Replenish the developer solution
In extra oral radiography, the intensifying screen is used to reduce the: -
ANSWER Exposure time
When processing radiographs, the smell of ammonia indicates that the: -
ANSWER Fixer has contaminated the developer
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