DENTAL RADIOLOGY CERTIFICATION TEST
The part of an atom that carries a negative charge is a/an - Answers - Electron
The quantity of x-rays emitted is primarily dependent upon the - Answers -
Milliamperage setting
An aluminum filter in a dental x-ray unit functions to - Answers - Absorb x-rays of long
wavelength
Light radiographs can be caused by - Answers - Film packet reversal, low MA setting,
and an exhausted developer
What are the principles of ideal projection - Answers - 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 - Answers - 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? - Answers - 10
How frequently should a complete radiographic survey (CRS) be exposes on a typical
adult patient? - Answers - As frequently as indicated by the patient's clinical needs a
Which Standard International Units is equivalent to the rem - Answers - Sievert
In "real time direct" digital radiography, what is used in place of an x-ray film? -
Answers - Sensor
In digital radiography, using phosphor plates: - Answers - 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: - Answers - There was too much vertical
angulation
If a herringbone pattern shows up on a radiograph, this means: - Answers - The film
packet was reversed
Each successive panoramic radiograph appears lighter than the one before. What
adjustment should be made - Answers - Replenish the developer solution
The part of an atom that carries a negative charge is a/an - Answers - Electron
The quantity of x-rays emitted is primarily dependent upon the - Answers -
Milliamperage setting
An aluminum filter in a dental x-ray unit functions to - Answers - Absorb x-rays of long
wavelength
Light radiographs can be caused by - Answers - Film packet reversal, low MA setting,
and an exhausted developer
What are the principles of ideal projection - Answers - 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 - Answers - 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? - Answers - 10
How frequently should a complete radiographic survey (CRS) be exposes on a typical
adult patient? - Answers - As frequently as indicated by the patient's clinical needs a
Which Standard International Units is equivalent to the rem - Answers - Sievert
In "real time direct" digital radiography, what is used in place of an x-ray film? -
Answers - Sensor
In digital radiography, using phosphor plates: - Answers - 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: - Answers - There was too much vertical
angulation
If a herringbone pattern shows up on a radiograph, this means: - Answers - The film
packet was reversed
Each successive panoramic radiograph appears lighter than the one before. What
adjustment should be made - Answers - Replenish the developer solution
