1. the speed with which electrons travel from the filament of the cathode to the target of the anode depends upon thenumber of milliamperes in the tube circuitvoltage in the filament circuitangle between the filament and the targetpotential difference between the two electrodesQuestion 1 of 20 2. Radiographic view for displaced root fragment in maxillary sinus , best view is:Occipitomenton at 30 degreeMRILateral oblique viewIOPAQuestion 2 of 20 3. Which of the following converts electrons into x-rays?negative anodepositive anodenegative cathodepositive cathodeQuestion 3 of 20 4. Digital x-rays require less radiation than conventional x-rays because:The exposure time is increasedThe sensor is largerThe pixels sense transmitted light quicklyThe sensor is more sensitive to x-raysQuestion 4 of 20 5. Which projection is best for examining zygomatic arch fractures?Submentovertex projectionLateral cephalometric projectionReverse Towne projectionWaters projectionQuestion 5 of 20 6. The first electron donor in a developer solution isPhenidoneHydroquinonePotassium bromideSodium bicarbonateQuestion 6 of 20 7. reversal lines are characteristic on the radiograph ofepidermoid cystosteosarcomaosteomapaget's disease of boneQuestion 7 of 20 8. In bitewing method of radiography, for examination of maxillary deciduous lateral incisor, vertical angulation should be10203060Question 8 of 20 9. which of the following restorative material is the most radiolucentzinc oxide eugenolmethylmethacrylateporcelaingutta perchaQuestion 9 of 20 10. Dental radiographs are the legal property of thedentistnone of the abovestatepatientQuestion 10 of 20 11. Intranuclear viral inclusions are seen in tissue specimens of which of the following?Solar cheilitisHairy leukoplakiaMinor aphthous ulcersGeographic tongueQuestion 11 of 20 12. the most common cause of light radiographs isusing an exhausted developerplacing the shielded side of the film toward the tube during exposureusing low kilovoltageover developing the filmsQuestion 12 of 20 13. Mandible in single plane is seen inAP viewOPGLateral obliqueque PA viewQuestion 13 of 20 14. phosphorus-32 emitsneutronsbeta particlesalpha particlesx raysQuestion 14 of 20 15. Least radiation exposure occurs inArthrographyCT scanMRIOPGQuestion 15 of 20 16. Radiograph of a tooth shows appearance of a halo around the root.It may be indicative ofRoot cariesPeriapical periostitisHorizontal root fractureWidening of the periodontal ligamentQuestion 16 of 20 17. SI unit of radioactivity isroentgencuriegraybecquerelQuestion 17 of 20 18. dead bone appear on a radiograph ascotton wool appearanceradio opaqueradiolucentsalt and pepper appearanceQuestion 18 of 20 19. campbell lines are seen in which radiographic projectiontranspharyngealtransorbitaltranscranialoccipitomentonQuestion 19 of 20 20. which of the following is not done as an investigation in osteosarcoma bone marrow biopsyx ray chestbone scanMRI femurQuestion 20 of 20 Loading...