Equipment Operation and Quality Control II

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Anonymous
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295636
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Equipment Operation and Quality Control II
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2015-02-11 23:52:59
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Equipment Operation Quality Control II
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Equipment Operation and Quality Control II
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  1. Which among the following components is (are) part of the gantry of a CT imaging system?

    1. X-ray tube

    2. Detector array

    3. Control panel






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
    •  
    •  
    • 1 and 2 only
  2. When using the smaller field in a dual-field image intensifier,















    1. a smaller patient area is viewed.
    2. the image is magnified.
    3. the image is less bright.






     
    1 only 



     
    1 and 3 only 



     
    2 and 3 only 



     
    1, 2, and 3
    •  
    •  
    • 1, 2, and 3
  3. Which of the following devices converts electrical energy to mechanical energy?




     
    Motor 



     
    Generator 



     
    Stator 



     
    Rotor
    •  
    •  
    • Motor
  4. Which of the following is (are) essential to high-quality mammographic examinations?

    1. Small-focal-spot x-ray tube

    2. Short-scale contrast

    3. Use of a compression device






     
    1 only 



     
    1 and 2 only 



     
    1 and 3 only 



     
    1, 2, and 3
    •  
    •  
    • 1, 2, and 3
  5. An advantage of using photospot camera film instead of cassette-loaded spot film to record conventional fluoroscopic images is:




     
    Larger anatomical image size 



     
    Reduced rate of exposures 



     
    Reduced patient dosage 



     
    No need for processing chemicals
    •  
    •  
    • Reduced patient dosage
  6. The type of x-ray tube designed to turn on and off rapidly, providing multiple short, precise exposures, is




     
    high speed 



     
    grid-controlled 



     
    diode 



     
    electrode
    •  
    •  
    • grid-controlled
  7. Digital fluoroscopy units use which of the following devices in lieu of a television camera tube?




     
    charge-coupled device (CCD) 



     
    photometer 



     
    photomultiplier tube 



     
    light gate
    •  
    •  
    • charge-coupled device (CCD)
  8. Components of digital imaging include

    1. computer manipulation of the image

    2. formation of an electronic image on the radiation detector

    3. formation of an x-ray image directly on the IR






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
    •  
    •  
    • 1 and 2 only
  9. All the following statements regarding CR IPs are true except




     
    IPs do not contain radiographic film. 



     
    IPs use no intensifying screens. 



     
    IPs must exclude all white light. 



     
    IPs function to protect the PSP.
    •  
    •  
    • IPs must exclude all white light.
  10. What x-ray tube component does the number 6 in Figure 5–4 indicate?








     
    Anode stem 



     
    Rotor 



     
    Stator 



     
    Focal track
    •  
    •  
    • Stator
  11. The component of a CR image plate (IP) that records the radiologic image is the




     
    emulsion 



     
    helium–neon laser 



     
    photostimulable phosphor 



     
    scanner–reader
    •  
    •  
    • photostimulable phosphor
  12. The electron beam in a television cathode ray tube (CRT) is projected onto the output phosphor in a:




     
    Vertical pattern 



     
    Fixed direct beam 



     
    Broad field 



     
    Raster pattern
    •  
    •  
    • Raster pattern
  13. The advantages of capacitor-discharge mobile x-ray equipment include

    1. compact size

    2. light weight

    3. high kilovoltage capability






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
    •  
    •  
    • 1 and 2 only
  14. Which of the following would be appropriate cassette front material(s)?















    1. Tungsten
    2. Magnesium
    3. Bakelite






     
    1 only 



     
    1 and 2 only 



     
    2 and 3 only 



     
    1, 2, and 3
    •  
    •  
    • 2 and 3 only

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