Radiation Health And Safety Review

83 Questions | Total Attempts: 409

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Medical Test Quizzes & Trivia

Quiz to help students study for the RHS Exam.


Questions and Answers
  • 1. 
    _______ regulate(s) the manufacture and installation of dental x-ray equipment.
    • A. 

      The federal government

    • B. 

      State government

    • C. 

      Local government

  • 2. 
    The position indicating device (PID) is extension of the:
    • A. 

      Tubehead

    • B. 

      Extension Arm

    • C. 

      Control Panel

  • 3. 
    The _______ allows for positioning of the tubehead.
    • A. 

      Control devices

    • B. 

      Extension arm

    • C. 

      Control panel

  • 4. 
    The _____ activate(s) the machine to produce x-rays.
    • A. 

      On-off switch

    • B. 

      Exposure button

    • C. 

      Exposure light

  • 5. 
    During an exposure:
    • A. 

      The exposure button is briefly depressed and then released to initiate the exposure

    • B. 

      The exposure button is firmly depressed until the preset exposure time is completed.

    • C. 

      The exposure light on control panel is illuminated to signal the completion of the exposure.

  • 6. 
    Which of the following statements is true of the film holder?
    • A. 

      It is used to align an extraoral dental x-ray film.

    • B. 

      It requires the patient to stabilize the film in the mount

    • C. 

      It is required when using the intraoral paralleling technique.

  • 7. 
    A _______ eliminates the need for the patient to stabilize the film.
    • A. 

      PID

    • B. 

      Film holder

    • C. 

      Control panel

  • 8. 
    Which of the following intraoral film holders is a disposable Styrofoam bite-block?
    • A. 

      EEZEE-Grip

    • B. 

      Stable bite-block

    • C. 

      EndoRay

  • 9. 
    Features of the Stable bite-block include:
    • A. 

      Disposable

    • B. 

      Slot for film retention

    • C. 

      Molded plastic that can be sterilized

    • D. 

      Both a & b

  • 10. 
    Which of the following are beam alignment devices?
    • A. 

      XCP bite-block

    • B. 

      EEZEE-Grip

    • C. 

      Precision film holders

  • 11. 
    A beam alignment device can be used to help the dental radiographer position the PID in relation to the ______ and film.
    • A. 

      Collimator

    • B. 

      Tooth

    • C. 

      Extension arm

  • 12. 
    The Rinn XCP system includes a:
    • A. 

      Beam alignment device

    • B. 

      Snap-on metal collimating device

    • C. 

      Styrofoam bite-block

    • D. 

      Both a & b

  • 13. 
    Which of the following statements is true regarding the dental x-ray film and formation of the latent image?
    • A. 

      The film is placed to the buccal of the teeth

    • B. 

      The film is placed to the lingual of the teeth

    • C. 

      A periapical film is an extraoral film

  • 14. 
    Which component of the x-ray film provides a stable support for the emulsion?
    • A. 

      Film base

    • B. 

      Adhesive layer

    • C. 

      Gelatin

  • 15. 
    The film base is a flexible piece of:
    • A. 

      Cardboard

    • B. 

      Acetate

    • C. 

      Polyester plastic

  • 16. 
    The film base is transparent with a slight ______ tint used to emphasize image quality.
    • A. 

      Amber

    • B. 

      Red

    • C. 

      Blue

  • 17. 
    The film base is _____ mm thick
    • A. 

      0.02

    • B. 

      0.2

    • C. 

      2.0

  • 18. 
    The adhesive layer is added to the ____ before the ____ is applied.
    • A. 

      Gelatin; halide crystals

    • B. 

      Halide crystals; gelatin

    • C. 

      Film base; emulsion

    • D. 

      Emulsion; film base

  • 19. 
    The film emulsion is:
    • A. 

      Attached to both sides of the film

    • B. 

      Attached to one side of the film

    • C. 

      Made of polyester plastic

  • 20. 
    The film emulsion is composed of homogenous mixture of:
    • A. 

      Calcium tungstate and lead salt crystal

    • B. 

      Gelatin and barium salt crystals

    • C. 

      Gelatin and silver halide crystals

  • 21. 
    The halide in dental x-ray film is primarily silver:
    • A. 

      Iodide

    • B. 

      Bromide

    • C. 

      Chloride

  • 22. 
    The latent image is stored by the ________ in dental x-ray film.
    • A. 

      Film base

    • B. 

      Adhesive layer

    • C. 

      Silver halide crystals

  • 23. 
    The invisible pattern of stored energy on the exposed film is called the:
    • A. 

      Latent image

    • B. 

      Variable density pattern

    • C. 

      X-ray photon

  • 24. 
    Latent image centers are aggregates of:
    • A. 

      Neutral silver atoms

    • B. 

      Bromine atoms

    • C. 

      Silver bromide crystals

  • 25. 
    During formation of the latent image, irregularities in the lattice structure of the exposed crystal, known  as _______, attract silver atoms.
    • A. 

      The protective layer

    • B. 

      The emulsion

    • C. 

      Sensitivity specks

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