Final Exam part 4

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Anonymous
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122859
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Final Exam part 4
Updated:
2011-12-12 00:33:46
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Radiography
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pacquiao > mayweather
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  1. What is the Archiving process?

    A] uses activators in the fixer

    B] uses a clearing agent that bonds with unexposed silver halides

    C] prepares the film for long-term storage as medical record
    C] prepares the film for long-term storage as medical record
  2. What is the function of the transport system

    A] Constant tension to move film through each tank

    B] removes excess water

    C] tranports agents towards crystals
    A] Constant tension to move film through each tank
  3. What is the function of the dryer system
    remove excess water with squeegee roller & hot air blown
  4. What is the function of the drive system?
    series of gears & mechanical devices & motor that turn rollers
  5. What is the function of the replenishment system?
    and has (2) types
    replaces chemicals.... 1.Volume replenishment 2. Flood replenishment
  6. Flood replishment (low volume units) how many?

    A] 1-3 ml.
    B] 6-8 ml.
    C] 4-5 ml.
    C] 4-5 ml.
  7. Volume replenishment (higher volume units) how many?

    a] 7-9 ml.
    b] 5-7 ml.
    c] 6-8 ml.
    c] 6-8ml.
  8. what is the function of the circulation system?

    a]stabilizes temperature
    b]filters solution
    c]mixes chemistry
    d]all of the above
    d]all of the above

    stabilizes temp. filters solution, mixes chemistry
  9. what is safelight?

    a] light for the film
    b]protective light in darkroom
    c]light inside xray tube
    b]protective light in darkroom
  10. when is direct illuminate for most radiographic films possible?

    a]dark red light at 7-15 watts
    b]hot pink light at 6-12 watts
    c]dark blue light at 10-16 watts
    a]dark red light at 7-15 watts
  11. most common types of silver recovery units?

    a]metallic replacement, electrolytic, chemical precipitation

    b]silver replacement, condensation, chemical units
    a] metallic replacement, electrolytic, chemical precipitation
  12. what is the Penetrometer (also called Step Wedge) function?
    used to produce step wedge on film by exposure to xrays
  13. What is sensitometry?

    a]measurement of the characteristic responses of film to exposure and processing

    b]measurement of the films senses

    c]measurement of penumbra
    a] measurement of the characteristic responses of film to exposure and processing
  14. whats the function of a densitometer?

    a]measures white specks on film
    b]provides a readout of the amount of density on a film
    c]provides amount of pi lines
    b]provides a readout of the amount of density on a film
  15. What does OD stand for?

    a]Oblique Distance number
    b]Optical Density number
    c]Optimum Decimal number
    b]Optical Density number
  16. What is another name for the D Log E curve?

    a]Sensitometric curve
    b]H & D curve
    c]LED curve
    d] a&b both ( sensitometric and, H&d)
    d] a&b both ( sensitometric and, H&d)
  17. what is base plus fog?

    a]long scale fog
    b]darkest spots
    c]lightest a film can be
    c]lightest a film can be
  18. what controls the toe of the curve?

    a]feet of the curve
    b]speed
    c]density
    b]speed
  19. what is the straight-line portion?

    a]portion between Toe & shoulder of curve
    b] under the toe
    c]after the shoulder
    a]portion between Toe & shoulder of curve
  20. what is Dmax?

    a]maximum light
    b]maximum darkness
    c]few grays
    b]maximum darkness
  21. what is Reversal or Solarization?

    a]after maximum darknes (Dmax) reverses by turning light again
    b]turns dark after base plug fog
    a]after maximum darknes (Dmax) reverses by turning light again
  22. what are the primary characteristics of film?

    a]desity,frequency,longitude
    b]speed,contrast,latitude,resolution
    c]pace,crossover effect,emulsion
    b]speed,contrast,latitude,resolution
  23. what is resolution?
    a] given amount of exposure
    b]number of sensitivity specks
    c]ability to accurately image an object(detail, sharpness, definition)
    c]ability to accurately image an object(detail, sharpness, definition)
  24. What is the relationship between resolution and crystal size?

    a]bigger crystals=less detail/ smaller crystals=better detail

    b]bigger crystals=better detail/ smaller crystals=less detail
    a]bigger crystals=less detail/ smaller crystals=better detail
  25. what is film speed? what is it determined by?

    a] determined by size of crystals
    b] exposure time
    c]film size
    a] determined by size of crystals
  26. what is speed point?

    a]point where speed starts
    b]speed decreases
    c]to sign an average number to speed
    c]to sign an average number to speed
  27. what is film contrast?

    a] exposure in film
    b]difference in various densities
    c]thickness of emulsion layer
    b]difference in various densities
  28. what controls the contrast on the sensitometric curve?

    a]the steep of the slope
    b]the speed
    c]solarization
    a]the steep of the slope
  29. what is gamma?

    a]maximum slope (between 1.5-2.5)
    b]average slope
    a]maximum slope (between 1.5-2.5)
  30. what is the average gradient?

    a]average of speed
    b]average of kvp
    c]average of contrast
    c]average of contrast
  31. what is latitude?

    a]range of exposure you can use for a film
    b]highest number for density
    c]maximum darkness
    a]range of exposure you can use for a film
  32. how are contrast and latitude related?

    a]their mothers are sisters

    b]latitude gives range of density to avoid too light (high contrast) and too dark (low contrast)

    c]both provide the maximum lightness
    b]latitude gives range of density to avoid too light (high contrast) and too dark (low contrast)

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