Oral Radiology....1

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    Father of radiology?

    • Carlson
    • Roentgen
    • Smith
    • Nuggler
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Oral Radiology....1 - Quiz

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  • 2. 

    In characteristic radiation ?

    • Atom is unionized

    • Atom is ionized

    • No effect

    • None

    Correct Answer
    A. Atom is ionized
  • 3. 

    Target Anode  is made up of?

    • Molybdenum

    • Copper

    • Tungston

    • None

    Correct Answer
    A. Tungston
  • 4. 

    Tungston target is embedded in ?

    • Molybdenum

    • Copper

    • Chromium

    • Any

    Correct Answer
    A. Copper
  • 5. 

    Cells with least metabolic activity?

    • Most sensitive to radiation

    • Least sensitive to radiation

    • No sensitivity

    • None

    Correct Answer
    A. Least sensitive to radiation
  • 6. 

    Dental X rays beams are usually collimated to a circle of ?

    • 1 inch

    • 2.75 inches

    • 4 inches

    • Any

    Correct Answer
    A. 2.75 inches
  • 7. 

    Increased Kvp leads to?

    • Increased contrast

    • Decreased contrast

    • No effect on contrast

    • None

    Correct Answer
    A. Decreased contrast
  • 8. 

    Least sensitive to radiation?

    • Bone marrow

    • Endocrine glands

    • Nerve tissue

    • All

    Correct Answer
    A. Nerve tissue
  • 9. 

    Long cone open cylinder technique is used as adjunct parelleling technique to?

    • To prevent distortion of image

    • To prevent elongation of image

    • To prevent shortening of image

    • None

    Correct Answer
    A. To prevent distortion of image
  • 10. 

    Which scattering produces more film fog?

    • Thompson scattering

    • Photoelectric effect

    • Compton effect

    • Coherent scattering

    Correct Answer
    A. Compton effect
  • 11. 

    All or none effect is related to?

    • Chronic effect

    • Deterministic effect

    • Somatic effect

    • Stochastic effect

    Correct Answer
    A. Stochastic effect
  • 12. 

    Which of the fillowing increases radiation exposure?

    • High KVP

    • Low KVP

    • High speed film

    • All

    Correct Answer
    A. Low KVP
  • 13. 

    X rays produced mainly due to?

    • Bremsstrahlung radiation

    • Characteristic radiation

    • Both

    • None

    Correct Answer
    A. Bremsstrahlung radiation
  • 14. 

    Which one is more ionizing?

    • X ray

    • Beta ray

    • Alpha ray

    • Gamma ray

    Correct Answer
    A. Alpha ray
  • 15. 

    Which leads to reduced patient exposure?

    • Increased mA

    • Increased Kvp

    • Use of grids

    • All

    Correct Answer
    A. Increased Kvp
  • 16. 

    Radiation dose if 7-15 GY cause?

    • Prodrimal symptoms

    • Mild hematopoietic systems

    • Gastrointestinal symptoms

    • All

    Correct Answer
    A. Gastrointestinal symptoms
  • 17. 

    Inherent character of X ray film are?

    • Defenition contrast and resolution

    • Defenition density resolution

    • Defenition,contrast density

    • All

    Correct Answer
    A. Defenition,contrast density
  • 18. 

    Total filtration for 70Kvp is? ?

    • 2.5 mm

    • 1.5 mm

    • 1mm

    • 2 mm

    Correct Answer
    A. 1.5 mm
  • 19. 

    Compared to round collimator rectangular collimator reduces exposure?

    • 15%

    • 30%

    • 60%

    • 45%

    Correct Answer
    A. 60%
  • 20. 

    Mean exposure of radiation from OPG ?

    • 80mR

    • 90mR

    • 100mR

    • 300 mR

    Correct Answer
    A. 90mR

Quiz Review Timeline (Updated): Jul 25, 2018 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 25, 2018
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 25, 2018
    Quiz Created by
    Ismayilpkn4
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