Radiation Health and Safety - Test 1 UPDATED ACTUAL Questions and CORRECT Answers
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Course
Radiation Health and Safety
Institution
Radiation Health And Safety
Radiation Health and Safety - Test 1
UPDATED ACTUAL Questions and
CORRECT Answers
What is a true statement regarding pregnant patients and exposure to radiation? - CORRECT
ANSWER- Lead aprons prevent exposure to the fetus
Divergence of the x-ray beam is reduced using: - CORRECT ANSWER- The p...
Radiation Health and Safety - Test 1
UPDATED ACTUAL Questions and
CORRECT Answers
What is a true statement regarding pregnant patients and exposure to radiation? - CORRECT
ANSWER- ✔✔Lead aprons prevent exposure to the fetus
Divergence of the x-ray beam is reduced using: - CORRECT ANSWER- ✔✔The paralleling
technique
The maximum permissible dose (MPD) for occupationally exposed workers is: - CORRECT
ANSWER- ✔✔0.05 Sv/yr
What represents the optimum desired occupational dose? - CORRECT ANSWER- ✔✔0
rem/yr
What would be an acceptable practice for an operator of dental x-ray equipment? -
CORRECT ANSWER- ✔✔Wearing a film badge only at work
What does a film badge monitor? - CORRECT ANSWER- ✔✔Radiographer's daily
occupational radiation exposures
What is an acceptable emission from the tubehead? - CORRECT ANSWER- ✔✔Primary
radiation
What is an accurate statement about safe operating procedures? - CORRECT ANSWER-
✔✔All dental staff members should wear dosimeters
You have a new dental x-ray machine. The length of the PID is changing form 16 to 8 inches.
How does this affect the intensity of the x-ray beam? What adjustment will you need to make
to keep the dentistry of your images consistent? - CORRECT ANSWER- ✔✔The resultant
beam will be four times as intense. You will need to decrease the exposure.
, Which type of beam does not produce scatter radiation? - CORRECT ANSWER- ✔✔Both
rectangular and round
When using a stepwedge to test developer strength, a total of _________ films should be
taken. - CORRECT ANSWER- ✔✔20
A reference radiograph is used to compare: - CORRECT ANSWER- ✔✔Densities
A coin test is used to check for: - CORRECT ANSWER- ✔✔Proper safelighting
Extraoral intensifying screens should be checked periodically for: - CORRECT ANSWER-
✔✔Dirt and scratches
When densities differ by more than two steps on a stepwedge, which protocol should be
followed? - CORRECT ANSWER- ✔✔Replace the processing solutions
On average, processing solution should be changed: - CORRECT ANSWER- ✔✔Every 3-4
weeks
Which is required fro film duplication? - CORRECT ANSWER- ✔✔Duplication film
This radiograph is mounted labially. What is the radiopaque restoration on tooth #19 in this
image? - CORRECT ANSWER- ✔✔An amalgam restoration with an overhang on the mesial
surface
What process is occurring in this image? - CORRECT ANSWER- ✔✔Physiologic resorption
Which structure appears in this panoramic image? - CORRECT ANSWER- ✔✔Metal
framework for two partial dentures
What landmark is indicated by the arrow? - CORRECT ANSWER- ✔✔Coronoid process
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