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Which of the following factors primarily controls X-ray beam penetration?
A) mAs
B) Focal spot size
✔✔C) kVp
D) Grid ratio
What effect does increasing OID have on image quality?
A) Increases spatial resolution
✔✔B) Increases magnification
C) Decreases contrast
D) Reduces patient dose
Which device reduces scatter radiation before it reaches the image receptor?
✔✔A) Grid
B) Collimator
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,C) AEC sensor
D) Intensifying screen
What is the main function of an anode in an X-ray tube?
A) Generate electrons
B) Reduce heat production
✔✔C) Convert electron energy into X-rays
D) Absorb scatter radiation
Which interaction between X-rays and matter contributes most to patient dose?
✔✔A) Photoelectric effect
B) Compton scattering
C) Coherent scattering
D) Pair production
Which exposure factor is most responsible for image contrast in digital radiography?
A) mAs
B) OID
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,✔✔C) kVp
D) SID
What happens if the focal spot size is increased?
A) Image contrast improves
B) Image distortion increases
✔✔C) Image sharpness decreases
D) Patient dose decreases
Which of the following will reduce motion blur in an X-ray image?
✔✔A) Shorter exposure time
B) Lower mA
C) Increasing kVp
D) Using a larger focal spot
What is the primary advantage of using a high-frequency X-ray generator?
A) Reduced scatter radiation
✔✔B) More efficient X-ray production
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, C) Increased exposure time
D) Lower contrast
Which type of X-ray beam interaction is responsible for producing most scatter radiation?
A) Photoelectric absorption
✔✔B) Compton effect
C) Coherent scatter
D) Pair production
Which of the following factors affects spatial resolution the most?
✔✔A) Focal spot size
B) kVp
C) mAs
D) Grid ratio
What effect does increasing SID have on image magnification?
✔✔A) Decreases magnification
B) Increases distortion
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