1. all of the following increases radiation exposure exceptuse of gridsuse of low speed filmshigh KVPlow KVPQuestion 1 of 20 2. What is the "critical target" for radiation damagechromosomesenzymeslysosomesGolgi apparatusQuestion 2 of 20 3. Chromosomal damage maximum during radiotherapy when there is damage toTelomereAutosomeCentrosomeSex chromosomeQuestion 3 of 20 4. Best radiograph to view fracture of condyle isOccipitomental viewOPGSubmentovertexReverse towne's viewQuestion 4 of 20 5. It is generally desirable that x-ray films be all of the following exceptFine grain sizeHigh speedCoated with emulsion on both sidesSensitive to visible lightQuestion 5 of 20 6. the gold standard for the diagnosis of osteoporosis issingle energy x ray absorptiometrydual energy x ray absorptiometryultrasoundquantitative computed tomographyQuestion 6 of 20 7. ALARA principle stands forAs low are resonably achievableAs lower as reasonably achievableAs low as reasonably achievableAs lower are reasonably achievableQuestion 7 of 20 8. The photosensitive component of an x-ray film is ______.GelatinSilver halide crystalsSodium thiosulfate crystalsRare earth elementsQuestion 8 of 20 9. Size of x-ray film for bitewing used in a child for molar tooth3142Question 9 of 20 10. On a radiograph, you observe a radiolucency extending from the distal aspect of the maxillary canine to the posterior wall of the maxilla above the tuberosity. The most likely cause of this radiolucency is ____.Maxillary sinusAmeloblastomaDentigerous cystZygomatic process of the maxillaQuestion 10 of 20 11. which of the following restorative material is the most radiolucentmethylmethacrylateporcelaingutta perchazinc oxide eugenolQuestion 11 of 20 12. which of the following radiographic feature is commonly associated with a traumatic bone cystdivergence of the roots of teethdome shaped radio oacity of the maxillary sinusunilocular radiolucency with focal radiooacityscalloped radiolucency extending between the roots of teethQuestion 12 of 20 13. the quantity of electrons available for x rays is determined primarily bykilovoltage settingmiliamperage settingdegree of collimationamount of filtrationQuestion 13 of 20 14. the technique employed in radiotherapy to counteract the effect of tumor motion due to breathing is known asarc technique gatingshuntingmodulationQuestion 14 of 20 15. Which of the following statements about obtaining the most geometrically accurate image is false?The object-to-film distance should be short.The film should be parallel to the object.The central ray should be perpendicular to the film.The central ray should be parallel to the object.Question 15 of 20 16. Intranuclear viral inclusions are seen in tissue specimens of which of the following?Minor aphthous ulcersSolar cheilitisHairy leukoplakiaGeographic tongueQuestion 16 of 20 17. radiographically,in early caries one can mistake a radiolucent line below the DEJ formach bandslines of retziustomes granular layerhunter schreger bandsQuestion 17 of 20 18. Which property of x-ray is utilised in intensifying screensBiologicalBiochemicalChemicalPhysicalQuestion 18 of 20 19. which of the following is the least radiosensitive tissuesmuscle cells,nerve cells,bone cellsRBC,muscle cell,nerve cellWBC,bone cells,epithelial cellsconnective tissue cell,endothelial cell,muscle cellQuestion 19 of 20 20. Structures seen in maxillary anterior periapical radiographZygomatic arch/zygomatic process of maxillalateral fossaGenial tuberclesMaxillary sinusQuestion 20 of 20 Loading...
