Rad Test B 2

26 Questions | Total Attempts: 40

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Radiography Quizzes & Trivia

Questions and Answers
  • 1. 
    What happens to the radiographic image when a short (8in) PID is used?
    • A. 

      Magnification results

    • B. 

      Shorter exposure time

    • C. 

      Increased accuracy

  • 2. 
    Which of the following are advantages of the bisecting technique?
    • A. 

      Increased accuracy

    • B. 

      Dimplicity of use

    • C. 

      Shorter exposure time

    • D. 

      A,b,c

    • E. 

      C only

    • F. 

      A only

  • 3. 
    How much film should be between the occlusal surface of the teeth and the occlusal edge of the film on posterior radiographs?
    • A. 

      1/4 in =5mm

    • B. 

      3/8 in = 7.5mm

    • C. 

      1/16 in = 1.25mm

    • D. 

      1.2 in = 10mm

  • 4. 
    How much area should be on a film beyond the apex of the tooth?
    • A. 

      3/8 in = 7.5mm

    • B. 

      1/2 in = 10mm

    • C. 

      3/4 in = 15mm

    • D. 

      1/4 in = 5mm

    • E. 

      1/8 in = 2.5mm

  • 5. 
    What information is required to be recorded on the patients chart after dental x-ray exposure?
    • A. 

      Number of films

    • B. 

      Total kvp

    • C. 

      Total mA's

    • D. 

      Type of film

    • E. 

      Managing problems

    • F. 

      The position of the PID

    • G. 

      A,e,f

    • H. 

      A,b,c

    • I. 

      B,d,e

  • 6. 
    What is the patient instructed to do during each exposure of the film?
    • A. 

      To close their eyes

    • B. 

      To hold their breath momentarily

    • C. 

      Do not move

    • D. 

      A and b

    • E. 

      A,b,c

  • 7. 
    For maxillary radiographs, the patient's head is positioned so that the occlusal plane of the maxillary teeth is
    • A. 

      Parallel to the floor

    • B. 

      Parallel with the border of maxillary

    • C. 

      Parallel to the ala tragus line

  • 8. 
    In what location whould the identification dot be correctly placed on film?
    • A. 

      Toward the occlusal or incisal

    • B. 

      Toward the distal

    • C. 

      Toward the medline

    • D. 

      Toward the plate or floor of the mouth

    • E. 

      None of the answers given

  • 9. 
    What term describes the imaginary line between the long axis of the tooth and the film plane?
    • A. 

      Target

    • B. 

      Median

    • C. 

      Plain of the film

    • D. 

      Bisector

    • E. 

      None of the answers given

  • 10. 
    What location along the ala tragus line is used as a point of entry for the canine exposure?
    • A. 

      Inner canthus of eye

    • B. 

      Synthesis of chin

    • C. 

      Outer canthus of eye

    • D. 

      Tip of nose

  • 11. 
    What is the normal film requirement for the adult periapical survey when standard-sized film packets are used?
    • A. 

      18

    • B. 

      16

    • C. 

      14

    • D. 

      20

    • E. 

      12

  • 12. 
    How many standard-size film are recommended to make the full bitewing survey of the posterior tooth?
    • A. 

      2

    • B. 

      4

    • C. 

      6

    • D. 

      8

  • 13. 
    Which of these conditions could not be visible on a bitewing radiograph?
    • A. 

      Incipient caries

    • B. 

      Recurrent carries

    • C. 

      Apical abscess

    • D. 

      Aiveolar crest resorption

  • 14. 
    Which of these factors is most likely to reduce the usefulness of a bitewing radiograph?
    • A. 

      Error in horizontal angulation

    • B. 

      Error in vertical angulation

    • C. 

      Vertical instead of horizontal film placement

    • D. 

      Horizontal instead of verticle film placement

  • 15. 
    Which size film is used and how is it positioned in the anterior area of small narrow adult arch?
    • A. 

      Long-bitewing film placed vertically

    • B. 

      Narrow film placed horizontally

    • C. 

      Narrow film plaved vertically

    • D. 

      Standard film placed horizontally

  • 16. 
    The interproximal exposure gives an excellent view of the height of the alveolar ridge.
    • A. 

      True

    • B. 

      False

  • 17. 
    How many interproximal exposures are taken on an edentulous patient
    • A. 

      0

    • B. 

      2

    • C. 

      4

  • 18. 
    What size film is used to include all the posterior teeth in one bitewing exposure?
    • A. 

      Size 0

    • B. 

      Size 2

    • C. 

      Size 3

    • D. 

      Size 4

  • 19. 
    Which of the following is the correct vertical angulation used with the bitewing technique?
    • A. 

      -10 degrees

    • B. 

      -20 degrees

    • C. 

      +10 degrees

    • D. 

      +15 degrees

  • 20. 
    What is the function of the lead foil in the x-ray packet?
    • A. 

      Moisture protection

    • B. 

      Protection against fluorescence

    • C. 

      Protection against backscatter

    • D. 

      Protection against central ray

    • E. 

      None of the answers

  • 21. 
    The function of the gelatin in the dental film is to:
    • A. 

      Reduce the silver salts

    • B. 

      Give contrast to the film

    • C. 

      Keep silver compound suspended evenly on the film

    • D. 

      Provide a solid base for the dental x ray

    • E. 

      Speed processing

  • 22. 
    The purpose of the small raised bump is:
    • A. 

      An identification dot

    • B. 

      Used to distinguish left and right

    • C. 

      Signigicant in film mounting

    • D. 

      All of the above

    • E. 

      None of the above.

  • 23. 
    Radiographs must be protected:
    • A. 

      From heat

    • B. 

      From smudging

    • C. 

      From scratching

    • D. 

      All of the above

  • 24. 
    Radiographs are valuable for:
    • A. 

      Current conditions for about 6 months

    • B. 

      Comparison with previous conditions

    • C. 

      Use in a court of law

    • D. 

      Cases of forensic identification

    • E. 

      All of the above

  • 25. 
    If the films are mounted with the patient's left on the viewer's right, the identification dot will be:
    • A. 

      A bump (convex)

    • B. 

      A dimple (concave)

    • C. 

      Unimportant

  • 26. 
    Which of the following film size is known as the standard film?
    • A. 

      Size 0

    • B. 

      Size 1

    • C. 

      Size 2

    • D. 

      Size 3