1. filters are used in x ray beam toreduce exposure timecorrect the x ray beam sizeremove low energy x ray photonsreduce film densityQuestion 1 of 20 2. Normal angulation for recording a periapical radiograph of a maxillary lateral incisor:30 degrees40 degrees-ve 30 degrees70 degressQuestion 2 of 20 3. When the X-ray tube is shifted to the right, the object shifts to the left as compred to the adjacent teeth.The object is positionedLabial to the teethLingual to the teethIt has no relation to the teethIn the line with the teethQuestion 3 of 20 4. A periapical image shows overlapped contacts. This error is caused byBeam not centered over receptorVertical angulation is excessiveIncorrect horizontal angulationVertical angulation is insufficientQuestion 4 of 20 5. which of the following restorative material is the most radiolucentmethylmethacrylategutta perchaporcelainzinc oxide eugenolQuestion 5 of 20 6. Fogging seen in x- ray film is seen due to all of the following reasons exceptStray radiationsImproper safe lightingOld filmGridQuestion 6 of 20 7. The unit for measuring the absorption of x-rays is called:REMRADRoentgenQFQuestion 7 of 20 8. What is the effect on radiograph if there are scratches on intensifying screenNo effectReticulation in the radiographLight spots on radiographDark spot on radiographQuestion 8 of 20 9. Best view for condylar neck fratureReverse towne'sOccipito mentalSubmentovertexPA skullQuestion 9 of 20 10. Maximum fogging effect is seen byCoherentCharacteristic radiationCompton scatteringPhotoelectric absorptionQuestion 10 of 20 11. 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 11 of 20 12. All are advantages of digital radiography exceptPatient educationSize of the intraoral sensorThe ability to enhance the imageDigital subtractionQuestion 12 of 20 13. What is the role of potassium bromide and benzotriazole in developerPreservativeInitiatorRestrainerActivatorQuestion 13 of 20 14. Most radiosensitive phase of cell cycle isG2SG1S2Question 14 of 20 15. all of them use non ionizing radiation exceptMRIthermographyradiographyultrasonographyQuestion 15 of 20 16. Foreshorting where the teeth appear too short is caused by:Too little vertical angulationBeam not aimed at the center of the filmToo much vertical angulationIncorrect horizontal angulationQuestion 16 of 20 17. Advantage of CT SCAN over CBCT isReduced radiation doseFan shaped beanGreater contrast resolutionAll of the aboveQuestion 17 of 20 18. radiographic view for diagnosisg horizontally favourable and unfavourable fracture islateral oblique viewreverse towne's projectionPA view skullOPGQuestion 18 of 20 19. dead bone appear on a radiograph assalt and pepper appearanceradiolucentcotton wool appearanceradio opaqueQuestion 19 of 20 20. zygomatic arch fractures are best seen inpostero anterior view skulllateral view of skullsubmentovertex viewoccipitomental viewQuestion 20 of 20 Loading...