DENTAL RADIOLOGY CERTIFICATION TEST EXAM WITH CORRECT QUESTIONS AND ANSWERS 2025

DENTAL RADIOLOGY CERTIFICATION
TEST EXAM WITH CORRECT
QUESTIONS AND ANSWERS 2025
I. The part of an atom that carries a negative charge is a/an - CORRECT-ANSWERS-

Electron

II. The quantity of x-rays emitted is primarily dependent upon the - CORRECT-

ANSWERS-Milliamperage setting

III. An aluminum filter in a dental x-ray unit functions to - CORRECT-ANSWERS-Absorb

x-rays of long wavelength

IV. Light radiographs can be caused by - CORRECT-ANSWERS-Film packet reversal, low

MA setting, and an exhausted developer

V. What are the principles of ideal projection - CORRECT-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

VI. What can cause a dark radiograph - CORRECT-ANSWERS-Too much time in developer

and too high MA or KVP setting

VII. If the directions on the film package call for an exposure time of 1/6 second, how many

impulses should the operator select? - CORRECT-ANSWERS-10

VIII. How frequently should a complete radiographic survey (CRS) be exposes on a typical

adult patient? - CORRECT-ANSWERS-As frequently as indicated by the patient's

clinical needs a

, IX. Which Standard International Units is equivalent to the rem - CORRECT-ANSWERS-

Sievert

X. In "real time direct" digital radiography, what is used in place of an x-ray film? -

CORRECT-ANSWERS-Sensor

XI. In digital radiography, using phosphor plates: - CORRECT-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

XII. If a film image is foreshortened, that means: - CORRECT-ANSWERS-There was too

much vertical angulation

XIII. If a herringbone pattern shows up on a radiograph, this means: - CORRECT-ANSWERS-

The film packet was reversed

XIV. Each successive panoramic radiograph appears lighter than the one before. What

adjustment should be made - CORRECT-ANSWERS-Replenish the developer solution

XV. In extra oral radiography, the intensifying screen is used to reduce the: - CORRECT-

ANSWERS-Exposure time

XVI. When processing radiographs, the smell of ammonia indicates that the: - CORRECT-

ANSWERS-Fixer has contaminated the developer

XVII. An aid to correctly mounting processed radiographs is the: - CORRECT-ANSWERS-

Raised bump on the film

XVIII. When manually processing radiographs, the standard fixing time at 68 degrees is: -

CORRECT-ANSWERS-10 minutes

XIX. Placing exposed radiographic film in fixer before developer results in a - CORRECT-

ANSWERS-Clear film