1. which of the following is most valuable in determining x ray beam qualityeffective photon energyhomogeneity cofficientpeak kilovoltage with added filtrationspectral distribution of photon energiesQuestion 1 of 20 2. the technique employed in radiotherapy to counteract the effect of tumor motion due to breathing is known asshuntingarc technique modulationgatingQuestion 2 of 20 3. Best radiograph to view relationship of adjacent anatomical structures to impacted mandibular toothIOPAOPGCBCTLateral cephalogramQuestion 3 of 20 4. While taking IOPA radiographs of maxillary 1st molar, to avoid superimposition of the zygomatic arch, the x ray tube should be angulated :Distal with an increase in vertical angulationDistalMesialMesial with decrease in vertical angulationQuestion 4 of 20 5. The radiation generated at the anode of the x-ray tube is calledReverse radiationScattered radiationPrimary radiationPotential radiationQuestion 5 of 20 6. Proper radiographic infection control includes all of the following except one. Which one is the exception?Disinfecting x-ray machine surfaceWearing gloves while making radiographsSterilizing film packetsCovering working surfaces with barriersQuestion 6 of 20 7. Best view for TMJ derangements isCTCone beam CTMRILateral skullQuestion 7 of 20 8. ALARA principle stands forAs lower as reasonably achievableAs lower are reasonably achievableAs low as reasonably achievableAs low are resonably achievableQuestion 8 of 20 9. It is important that the film base be ____.sensitive to XrayCompletely clearopaque FlexibleQuestion 9 of 20 10. All are advantages of digital radiography exceptSize of the intraoral sensorPatient educationThe ability to enhance the imageDigital subtractionQuestion 10 of 20 11. Lamina dura, Nasal fossa and maxillary sinus appear distinct and clear in a radiograph due toEgg shell effectWindow effectMach band effectPhotoelectric effectQuestion 11 of 20 12. the most common cause of light radiographs isover developing the filmsusing an exhausted developerusing low kilovoltageplacing the shielded side of the film toward the tube during exposureQuestion 12 of 20 13. If an unwrapped, nonprocessed x-ray film is exposed to normal light for just a second and then processed, it ______.May still be used but will be brownWill be completely blackMay still be used but will be a little lightMay still be used but will be a little darkQuestion 13 of 20 14. The disadvantage of digital radiography over conventional radiographyHigher radiation exposureHigh costProcessing defectsTime consumingQuestion 14 of 20 15. Maximum cupping artifact is seen inSpiral beam computed tomographyComputed tomographyCone beam computed tomographyMulti size computed tomographyQuestion 15 of 20 16. which of the following is not done as an investigation in osteosarcoma MRI femurx ray chestbone scanbone marrow biopsyQuestion 16 of 20 17. When mounting a full mouth survey, radiographs of which of the following teeth should be mounted first for orientationmaxillary right and left molarsright and left bitewingsmandibular central incisorsmaxillary central incisorQuestion 17 of 20 18. Occlusal radiographs are useful for all of the following except one. Which one is the exception?When there are sialoliths in the floor of the mouthFor views of the temporomandibular joint (TMJ)When there is buccal-lingual expansion of the mandibleFor displaying large segments of the mandibular archQuestion 18 of 20 19. Cervical burnout is phenomenon seen inCervical cariesOcclusal cariesCervical thin enamelproximal cariesQuestion 19 of 20 20. What is the name of the radiographic technique when the central ray of the cone is directly perpendicular to the object?Bisecting technique Submentovertex technique none of the aboveParalleling technique Question 20 of 20 Loading...
