Radiography Principles and Techniques Quiz
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Questions and Answers

What is true regarding low energy and wave length?

  • Wave length is unrelated to energy.
  • Low energy has a short wave length.
  • High energy has a long wave length.
  • Low energy has a long wave length. (correct)

    • Which of the following statements about collimation is correct?

  • Collimation is solely for improving image contrast.
  • Collimation does not affect the amount of tissue irradiated.
  • Collimation is only effective for reducing secondary radiation.
  • A collimator is used to control the size and shape of the beam. (correct)

    • Which factor does not positively affect film density?

  • Milliampere value increase.
  • Developing time increase.
  • Kilovoltage increase.
  • Longer exposure time. (correct)

    • What is the consequence of excessive bending of the film during exposure?

    <p>Blurred film.</p> Signup and view all the answers

    What defines 'cone cut' in radiography?

    <p>Clearly unexposed areas due to improper positioning.</p> Signup and view all the answers

    Which term describes the measure of damage to different organs from radiation?

    <p>Relative biological effectiveness (RBE).</p> Signup and view all the answers

    How does increasing Kilovoltage (kV) affect film density?

    <p>It increases film density.</p> Signup and view all the answers

    What happens to radiation when it changes direction without losing energy?

    <p>Scattering.</p> Signup and view all the answers

    Which imaging technique is best for investigating the soft tissue component of the TMJ?

    <p>MRI</p> Signup and view all the answers

    What type of radiation is produced when an outer shell electron fills an inner shell void?

    <p>Characteristics radiation</p> Signup and view all the answers

    What is the primary source of electrons within the x-ray tube?

    <p>Cathode Filament</p> Signup and view all the answers

    Which view is most effective for visualizing the submandibular salivary gland?

    <p>Lower oblique occlusal</p> Signup and view all the answers

    Which material is the anode primarily made of in an x-ray tube?

    <p>Tungsten</p> Signup and view all the answers

    Which of the following is NOT a basic principle of projection geometry for radiography?

    <p>Film should be angled towards the source of radiation.</p> Signup and view all the answers

    Which of the following factors DOES NOT affect x-ray quality?

    <p>Milliamperage</p> Signup and view all the answers

    What is the correct diagnosis for black dots or dark spots on a developed film?

    <p>Accidental spilling of developer solution.</p> Signup and view all the answers

    Which radiograph is primarily used to image the coronal portions of the maxillary and mandibular posterior teeth?

    <p>Bitewing</p> Signup and view all the answers

    The principle that emphasizes minimizing radiation exposure while obtaining necessary diagnostic information is known as?

    <p>ALARA principle</p> Signup and view all the answers

    What is the maximum amount of whole body radiation a worker in an X-ray clinic should receive per year?

    <p>50 rem</p> Signup and view all the answers

    The latent period in radiation biology refers to the time between exposure to radiation and which of the following?

    <p>Clinical symptoms.</p> Signup and view all the answers

    To minimize exposure intervals for patients with neuromuscular problems, which method can be utilized?

    <p>Using higher kilo voltage.</p> Signup and view all the answers

    What is the purpose of following the ALARA Principle in radiographic imaging?

    <p>To minimize radiation exposure</p> Signup and view all the answers

    Which consequence can result from rough handling of film during processing?

    <p>Pale film</p> Signup and view all the answers

    What visual artifact can occur if processing solutions are contaminated?

    <p>Yellow stain</p> Signup and view all the answers

    What is the result of incorrect horizontal angulation in radiography?

    <p>Overlapping of adjacent structures</p> Signup and view all the answers

    Which factor contributes to a cone cut artifact during imaging?

    <p>Incorrect tube position and alignment</p> Signup and view all the answers

    What term is used to describe the difference in degree of darkening in a radiograph?

    <p>Contrast</p> Signup and view all the answers

    In the bisecting angle technique, how should the central ray be directed?

    <p>90 degrees to the imaginary bisector</p> Signup and view all the answers

    Which type of film is classified as periapical film used for examining the apical area of the tooth?

    <p>Type II intra oral film</p> Signup and view all the answers

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