1. When using a phosphor plate, if we tak eimage without deetion of previous one is calledNo imageSingle real imageGhost imageDouble imageQuestion 1 of 20 2. Radiographic appearance of hypophosphatasiaCemental thickeningShell teethGhost teethFloating teethQuestion 2 of 20 3. Radiotherapy given by implantPhysiotherapyBrachytherapyTeletherapyRadioisotope therapyQuestion 3 of 20 4. In cone beam CT scan what is the artifact seen when the size of the object being imaged is smaller than the voxel sizeBeam hardeningStreakingPartial volume averagingDistortionQuestion 4 of 20 5. Penny test is used forPersonnel protectionStatic electricity artifactStrength of developerdarkroom safe lightingQuestion 5 of 20 6. Dental radiographs are the legal property of thestatepatientnone of the abovedentistQuestion 6 of 20 7. the quantity of electrons available for x rays is determined primarily bydegree of collimationamount of filtrationmiliamperage settingkilovoltage settingQuestion 7 of 20 8. In taking radiographs, gagging is usually caused whenThe film is moved across the soft palateThe film impinges on the floor of the mouthThe film is held by the patientBite wings are takenQuestion 8 of 20 9. Best view for condylar neck fratureSubmentovertexOccipito mentalPA skullReverse towne'sQuestion 9 of 20 10. What is the effect on radiograph if there are scratches on intensifying screenLight spots on radiographReticulation in the radiographNo effectDark spot on radiographQuestion 10 of 20 11. which type of radiation effect results in radiation induced thyroid cancerteratogenicsomaticautosomalgeneticQuestion 11 of 20 12. the density of a radiograph is reduced by increasingexposure timemiliamperagesource film distancekilovoltageQuestion 12 of 20 13. all of the following radioisotopes are used in systemic radionucleotide exceptphosphorus-32samarium-153iridium-192strontium-89Question 13 of 20 14. The unit for measuring the absorption of x-rays is called:RADREMQFRoentgenQuestion 14 of 20 15. Least radiation exposure occurs inArthrographyCT scanMRIOPGQuestion 15 of 20 16. the radioopacity that frequently obliqueterates the apices of maxillary molarswhen using the bisecting principle of intra oral radiography is themaxillary sinusorbital process of the zygomatic bonezygoma and the zygomatic process of the maxillapalatine process and the zygomaQuestion 16 of 20 17. the size of the periapical film used in adults is22 x 35 mm31 x 41 mmnone of the above21 x 31 mmQuestion 17 of 20 18. Best radiograph to view fracture of condyle isOccipitomental viewOPGSubmentovertexReverse towne's viewQuestion 18 of 20 19. Which of the following uses alogarithmCariostarCariogramlaser dopplerDifotiQuestion 19 of 20 20. Chromosomal damage maximum during radiotherapy when there is damage toCentrosomeAutosomeSex chromosomeTelomereQuestion 20 of 20 Loading...