1. Mandible in single plane is seen inOPGAP viewPA viewLateral obliqueque Question 1 of 20 2. 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 circuitpotential difference between the two electrodesvoltage in the filament circuitangle between the filament and the targetQuestion 2 of 20 3. which of the following views is useful in viewing a stone in the submandibular glandocclusal view of mandibletomogramOPGsubmentovertexQuestion 3 of 20 4. Sharpness of image is increased byEgg shell effectSmall focal spotIncreased object to receptor distanceLow miliamperageQuestion 4 of 20 5. Which of the following projections is the best for evaluating midface fractures?Submentovertex projectionLateral jaw projectionReverseTowne projectionWaters projectionQuestion 5 of 20 6. If your film-based radiographs start coming out too light, it may be that the ______.Exposure time is too longFixer needs changingDeveloper needs changingDeveloper is too hotQuestion 6 of 20 7. Which of the following projections is the best for evaluating the maxillary sinus?Reverse Towne projectionWaters projectionSubmentovertex projectionLateral jaw projectionQuestion 7 of 20 8. which of the following is most valuable in determining x ray beam qualityeffective photon energypeak kilovoltage with added filtrationhomogeneity cofficientspectral distribution of photon energiesQuestion 8 of 20 9. SI unit of radioactivity isgrayroentgenbecquerelcurieQuestion 9 of 20 10. Floating teeth' are seen in which of the following conditions?Cleidocranial dysplasiaOsteoporosisEhler danlos syndromeHistiocytosis XQuestion 10 of 20 11. Advantage of CT SCAN over CBCT isFan shaped beanReduced radiation doseAll of the aboveGreater contrast resolutionQuestion 11 of 20 12. What is the main ingredient of the developing solution that serves to convert the exposed silver salts on the emulsion film into silver metallic ions?Potassium bromideSodium sulfiteHydroquinoneSodium carbonateQuestion 12 of 20 13. Discoid lupus erythematosus has all of the following characteristics except one. Which one is the exception?Predominately affects middle-aged womenAffects the skin of the face and scalpInvolves damage to the heart and kidneyProduces oral lesions that resemble erosive lichen planusQuestion 13 of 20 14. A nephrocalcinosis treated patient and on omeprazole for last 3 weeks, has midline crossing lesion in the lower jaw, radiolucent, hazy trabeculae,giant cells , expanding cortical plates .Diagnosis isTreated nephrocalcinosisCGCGBrown tumorOdontogenic keratocystQuestion 14 of 20 15. characteristic 'tram line' calcifications in the skull radiographs is observed inpaget's diseasesturge weber syndromemaccune albright syndromecleidocranial dystosesQuestion 15 of 20 16. In case of suspected metastasis to lymph nodes of neck,ultrasound will reveal all of the following exceptPresence of microcalcificationsLoss of fatty hyaline layerHypoechoic shadowDecreased vascularityQuestion 16 of 20 17. filters are used in x ray beam tocorrect the x ray beam sizeremove low energy x ray photonsreduce film densityreduce exposure timeQuestion 17 of 20 18. In the body which atom is useful in magnetic resonance imaging(MRI)OxygenHydrogenSulphurNitrogenQuestion 18 of 20 19. Charge transferred across rows of detector in a 'bucket brigade ' fashion is seen inPSPFlat panel detectorCMOSCCDQuestion 19 of 20 20. Elongation (the most common error) can be caused byThe film is not parallel to the long axisToo little vertical angulationThe occlusal plane is not parallel to the floorAll of the aboveQuestion 20 of 20 Loading...
