Questions With Complete Solutions
A collimator is usually made out of which of the following
materials? Correct Answers Lead
A diaphragm on the x-ray machine is Correct Answers
collimator
A micro organism capable of causing diseases is called a Correct
Answers Pathogen
After each patient has been treated,___________ should be used
for cleaning all surfaces that have been contaminated Correct
Answers Intermediate level disinfectants
Bitewing radiographs are taken during check ups and are useful
for _____________. Correct Answers Detecting inter-proximal
caries or decay
Blurred image of an x-ray film is a result of Correct Answers
Movement during exposure
Cone Cutting is a result of_____________. Correct Answers
Not directing central ray to completely cover the film.
Digital radiology utilizes_____________as image receptors
Correct Answers Electronic sensor
Father of radiology Correct Answers Wilhelm Conrad Roentgen
, Faulty x-rays due to using the old film, presence of heat or x-
rays accidentally exposed to radiation cause___________.
Correct Answers Film fogging
Hand hygiene with water and anti-microbial soap for 40 to 60
seconds is called Correct Answers Routine hand wash
If active radiation on human tissue is harmful because it is
Correct Answers Accumulative
If film is perfectly clear when processing, after it's developed, a
cause would be: Correct Answers The x-ray machine was not
turned on
If root tips cannot be seen on dental x-ray film, the cause was:
Correct Answers Film was improperly placed
If teeth appear overlapped on the x-ray film Correct Answers
Horizontal angulation's were incorrect
If teeth appear too short on the x-ray film, the cause would be:
Correct Answers Incorrect vertical angulation
If temperature of developer solution is too low _________.
Correct Answers X-ray films will be too light
If the x-ray beam does not hit the total surface of the film, the x-
ray will result in Correct Answers Cone cutting
Image magnification occurs when the Correct Answers
Distance is increased