Radiography Quiz
12 Questions
11 Views

Radiography Quiz

Created by
@FresherSparrow

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the expected image on a radiograph exposed to 70 kVp, 100 mA, 100 ms from a full wave 3 phase x-ray unit?

  • Decreased contrast and density
  • No change in contrast and density
  • Blurred image
  • Increased contrast and density (correct)
  • Which of the following will serve to increase effective energy of the x-ray beam?

  • Increase in mA
  • Decrease in exposure time
  • Increase in kV (correct)
  • Increase in added filtration
  • What is indicated by visualizing 8 dots (dashes) on a finished film during a spinning top test at 200 mA, 0.05 s, and 70 kVp?

  • Overexposure due to incorrect exposures
  • The kVp setting is inaccurate
  • Underexposure due to incorrect exposures
  • The 0.5 sec time station is inaccurate (correct)
  • When comparing the mR output at 50 mA @ 0.2 s, 100 mA @ 0.1 s, and 200 mA @ 0.05 s while increasing the mAs using different mA and time combinations, this is part of which QC test?

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

    In which portion of the x-ray circuit is a step-down transformer located?

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

    If a high-voltage transformer has 100 primary turns and 35,000 secondary turns, and is supplied by 220 V and 75 A, what is the voltage across the secondary coil?

    <p>7700 V</p> Signup and view all the answers

    Which of the following will serve to increase the effective energy of the x-ray beam?

    <p>Increase in kV</p> Signup and view all the answers

    What is indicated by visualizing 8 dots (dashes) on a finished film during a spinning top test at 200 mA, 0.05 s, and 70 kVp?

    <p>The 0.5 sec time station is inaccurate</p> Signup and view all the answers

    When comparing the mR output at 50 mA @ 0.2 s, 100 mA @ 0.1 s, and 200 mA @ 0.05 s while increasing the mAs using different mA and combination, this is part of which QC test?

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

    In which portion of the x-ray circuit is a step-down transformer located?

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

    What will serve to increase the effective energy of the x-ray beam?

    <p>Increase in added filtration</p> Signup and view all the answers

    If a high-voltage transformer has 100 primary turns and 35,000 secondary turns, and is supplied by 220 V and 75 A, what is the secondary voltage?

    <p>7700 V</p> Signup and view all the answers

    Study Notes

    Radiograph Image Characteristics

    • A radiograph exposed to 70 kVp, 100 mA, 100 ms from a full wave 3 phase x-ray unit is expected to have a certain image appearance.

    X-ray Beam Energy

    • Increasing the kVp will serve to increase the effective energy of the x-ray beam.
    • Other factors that can increase the effective energy of the x-ray beam will also be explored.

    Spinning Top Test

    • Visualizing 8 dots (dashes) on a finished film during a spinning top test at 200 mA, 0.05 s, and 70 kVp indicates a specific outcome.

    Quality Control (QC) Tests

    • Comparing the mR output at 50 mA @ 0.2 s, 100 mA @ 0.1 s, and 200 mA @ 0.05 s while increasing the mAs using different mA and time combinations is part of a QC test.

    X-ray Circuit Components

    • A step-down transformer is located in the x-ray circuit.

    Transformer Calculations

    • If a high-voltage transformer has 100 primary turns and 35,000 secondary turns, and is supplied by 220 V and 75 A, the voltage across the secondary coil is 15,750 V.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of radiography with this quiz covering topics such as x-ray unit settings, image production, and factors affecting the effective energy of the x-ray beam.

    Use Quizgecko on...
    Browser
    Browser