1. all of the following form radiolucent stones exceptxanthineorotic acidcysteineallopurinolQuestion 1 of 20 2. The radiosensitivity of cells depends on ____.Mitotic activityAll of the aboveDegree of differentiationMitotic futureQuestion 2 of 20 3. If your film-based radiographs start coming out too light, it may be that the ______.Developer is too hotDeveloper needs changingFixer needs changingExposure time is too longQuestion 3 of 20 4. which one of the following is used to show base of skull,sphenoid sinus,position and orientation of the condyles and fractures of zygomatic archreverse towni projectionthe facial profile surgerysubmentovertex projectionthe TMJ surgeryQuestion 4 of 20 5. Radiographically 'se strum' formed in osteomyelitis isNone of the aboveLess opaque than healthy boneMore opaque than healthy boneSame opaque as healthy boneQuestion 5 of 20 6. which is the best method to reduce radiation exposure to patient during a full mouth seriesUse of E speed filmsSubstitute a panaromic image for the full mouth seriesUse of F speed filmsuse of digital imagingQuestion 6 of 20 7. the radioopacity that frequently obliqueterates the apices of maxillary molarswhen using the bisecting principle of intra oral radiography is themaxillary sinuszygoma and the zygomatic process of the maxillapalatine process and the zygomaorbital process of the zygomatic boneQuestion 7 of 20 8. the size of the periapical film used in adults is22 x 35 mm21 x 31 mmnone of the above31 x 41 mmQuestion 8 of 20 9. Which of the following converts electrons into x-rays?negative cathodepositive cathodepositive anodenegative anodeQuestion 9 of 20 10. Which of these structures hinders in imaging the root of maxillary molarsMaxillary sinusZygoma and zygomatic process of maxillaOrbital process of zygomapalatine boneQuestion 10 of 20 11. The photosensitive component of an x-ray film is ______.Silver halide crystalsRare earth elementsGelatinSodium thiosulfate crystalsQuestion 11 of 20 12. When using a phosphor plate, if we tak eimage without deetion of previous one is calledDouble imageNo imageGhost imageSingle real imageQuestion 12 of 20 13. reversal lines are characteristic on the radiograph ofepidermoid cystosteosarcomaosteomapaget's disease of boneQuestion 13 of 20 14. Which property of x-ray is utilised in intensifying screensPhysicalChemicalBiologicalBiochemicalQuestion 14 of 20 15. Advantage of CT SCAN over CBCT isAll of the aboveFan shaped beanGreater contrast resolutionReduced radiation doseQuestion 15 of 20 16. which is the best technique for detecting proximal caries in children with minimum radiation exposurebitewing with paralleling technique bitewing with RVGpanoramic radiographybitewing with bisecting angle technique Question 16 of 20 17. It is important that the film base be ____.Completely clearopaque sensitive to XrayFlexibleQuestion 17 of 20 18. radiographic diagnosis of dense radioopaque cotton wool areas throughout the entire body of the mandible and associated with hypercementosis is most likelyenostosisosteomyelitispaget's diseaseexostosisQuestion 18 of 20 19. The unit for measuring the absorption of x-rays is called:QFRoentgenREMRADQuestion 19 of 20 20. campbell lines are seen in which radiographic projectionoccipitomentontranscranialtransorbitaltranspharyngealQuestion 20 of 20 Loading...