1. Fastest X-ray filmDCEFQuestion 1 of 20 2. Fogging seen in x- ray film is seen due to all of the following reasons exceptImproper safe lightingGridOld filmStray radiationsQuestion 2 of 20 3. It is acceptable for the operator to hold the film in a patient's mouth____.If the patient or parent grants permissionIf the patient is a childNeverIf the patient has a handicapQuestion 3 of 20 4. a developer at high temperature will causeclear white spots on the filmyellow stainsvery light imagevery dark imageQuestion 4 of 20 5. First radiographic sign of osteomyelitisBlurring of trabeculaeSubperiosteal bone depositionLoss of vascularityWidening of PDLQuestion 5 of 20 6. Lamina dura, Nasal fossa and maxillary sinus appear distinct and clear in a radiograph due toWindow effectPhotoelectric effectMach band effectEgg shell effectQuestion 6 of 20 7. when a child is not able to hold the IOPA who should hold the filmassistantradiographerparentdentistQuestion 7 of 20 8. Structures seen in maxillary anterior periapical radiographlateral fossaGenial tuberclesMaxillary sinusZygomatic arch/zygomatic process of maxillaQuestion 8 of 20 9. osteoradionecrosis isosteomyelitis with anaerobic infectionosteomyelitis with mixed infectionradiation trauma infectionnon healing hypoxic woundQuestion 9 of 20 10. Maxillary sinus is seen inReverse Towne projectionSubmento vertexWaters viewPA viewQuestion 10 of 20 11. 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 isBrown tumorCGCGOdontogenic keratocystTreated nephrocalcinosisQuestion 11 of 20 12. Radiotherapy given by implantRadioisotope therapyBrachytherapyTeletherapyPhysiotherapyQuestion 12 of 20 13. half value layer refers tothe rate at which an x ray photon transfer its energy to irradiated matterthe time taken for x ray photons to travel half of the distance from the source to the objectthe heel effect seen when the anode is placed at an angle to the electron stream in the x ray cathode tubethe thickness of a substance required to reduce the number of x ray photons by halfQuestion 13 of 20 14. Linear accelerators used in medical radiology produce which type of particlesNeutrons and protonsPhotons and neutronsElectrons and neutronsElectrons and photonsQuestion 14 of 20 15. Mc gregor and trapnell lines are seen on atrue lateral viewSMVPA view skullwater's viewQuestion 15 of 20 16. reversal lines are characteristic on the radiograph ofosteomaepidermoid cystosteosarcomapaget's disease of boneQuestion 16 of 20 17. at the atomic level x ray photons lose their energy throughbremstrahlung interactionsspontaneous disintegration and mutation of photon energycollisions with other photonscompton and photoelectric processesQuestion 17 of 20 18. digital image in computerised radiography is made up ofCMOSpixelssilver halide crystalsCCDQuestion 18 of 20 19. The purpose and use of the panaromic image include all of the following except one. Which one is the exceptionTo evaluate traumaTo evaluate and diagnose cariesTo examine extent of large lesionsTo evaluate impacted teethQuestion 19 of 20 20. What is the name of the radiographic technique when the central ray of the cone is directly perpendicular to the object?none of the aboveSubmentovertex technique Paralleling technique Bisecting technique Question 20 of 20 Loading...
