Radiology Practice Test Questions With 100% Verified Answers.

How do you correct a foreshortened image? - correct answer decrease the vertical angulation What type of radiation is most dangerous? - correct answer all is equally dangerous What is an impregnated sheet? - correct answer lead apron When is it acceptable for the operator to hold an x-ray in the patient's mouth? - correct answer never What is the Gonadal region? - correct answer male reproductive organs What is the purpose of an aluminum filter? - correct answer to filter out the low and long energy rays What material is a collimator made of? - correct answer lead What size periapical film is most likely to be used on a small child? - correct answer 0 How do you correct an elongated image? - correct answer increase the vertical angulation How will a film appear if it is accidentally struck by light? - correct answer black How will a film appear if it was unexposed? - correct answer clear What is another term for bite-wing x-rays? - correct answer interproximal True or false, can metal be penetrated by x-rays? - correct answer true How do you protect the reproductive organs? - correct answer by using a lead apron How many x-rays may be taken on a pregnant woman? - correct answer as few as possible What does an occlusal film effectively view? - correct answer the dental arch What might an occlusal film find? - correct answer abnormalities in the dental arch Foreshortening is the result of what? - correct answer too much vertical angulation What causes an overlapped image? - correct answer improper horizontal angulation Radiolucent or Radiopaque mental foramen - correct answer radiolucent Radiolucent or Radiopaque caries - correct answer radiolucent Radiolucent or Radiopaque dentin - correct answer radiopaque Elongation is the result of what? - correct answer not enough vertical angulation What type of film is used to show the apices? - correct answer periapicals True or false before fabricating a denture, should you take x-ray on an edentulous patient? - correct answer true If a film is drastically elongated, how do you correct it? - correct answer increase the vertical angulation What may the result be, if an x-ray operator is holding the film the patient? - correct answer amputation When an intra-oral film is in the mouth, what is the lead foil between? - correct answer film and the tongue What material is most radiopaque? - correct answer amalgam Name 3 things a bwx is used for? - correct answer to check to interproximal caries, bone height, open margins True or false, periapical films come in various sizes? - correct answer true What happens if you do not direct the central ray to cover the film? - correct answer cone cut X-rays that are exposed in the mouth are high or low energy? - correct answer high energy (short wavelengths) A panoramic film is not acceptable in detecting what? - correct answer decay How far should you stand away from the source? - correct answer 6 feet Using fast film does what? - correct answer reduces exposure to the patient What is the purpose of the aluminum filter? - correct answer to filter out low and long energy rays which are useless The diameter of the x-ray beam, may not exceed? - correct answer 2 3/4 True or false, does a film badge evaluate exposure the patient receives? - correct answer false (they are for the operator) What happens if you expose a film on the wrong side? - correct answer you will get a herringbone effect How often should x-rays be taken? - correct answer as often as the dentist deems necessary Why should x-rays be taken of injured teeth? - correct answer because it is the best way to diagnose the teeth How will your film appear if you have a light leak into the daylight loader? - correct answer black edge How thick is an impregnated sheet? - correct answer .25 mm What is cross contamination - correct answer spreading microorganisms from one person to another