1. all of the following is true about the dark room safe lighting exceptthe safe light should be mounted at least 4 feet above the processing tankGBX-2 filter is recommended as a safe lightuse of high intensity and short wavelength light(red)safe lights are mounted in work area on the wall behind the processing tanksQuestion 1 of 20 2. radioisotopes are used in the following technique exceptRIAELISAmass spectroscopysequencing of nuceic acidsQuestion 2 of 20 3. which one of the following is used to show base of skull,sphenoid sinus,position and orientation of the condyles and fractures of zygomatic archthe TMJ surgerysubmentovertex projectionreverse towni projectionthe facial profile surgeryQuestion 3 of 20 4. occlusal radiograph are useful in locatingsialoliths in stensons ductsialoliths in whartons ductmaxillary sinus mucocelesthe mental foramenQuestion 4 of 20 5. The photosensitive component of an x-ray film is ______.Silver halide crystalsSodium thiosulfate crystalsRare earth elementsGelatinQuestion 5 of 20 6. which type of radiation effect results in radiation induced thyroid cancersomaticgeneticautosomalteratogenicQuestion 6 of 20 7. radiographic view for diagnosisg horizontally favourable and unfavourable fracture islateral oblique viewreverse towne's projectionOPGPA view skullQuestion 7 of 20 8. sunburst appearance on radiograph is seen inosteopetrosisosteofibromaosteosarcomax ray chestQuestion 8 of 20 9. Which intra-oral radiographs are the most useful in detecting interproximal caries?Bitewing x-raysPeriapical x-raysnone of the aboveOcclusal x-raysQuestion 9 of 20 10. If an exposed radiograph is too dark after proper development, you should ____.Decrease exposure timePlace it back in the fixerDecrease development timePlace it back in the developerQuestion 10 of 20 11. Radiotherapy given by implantTeletherapyBrachytherapyRadioisotope therapyPhysiotherapyQuestion 11 of 20 12. all of the following increases radiation exposure excepthigh KVPuse of low speed filmslow KVPuse of gridsQuestion 12 of 20 13. The unit for measuring the absorption of x-rays is called:REMRADRoentgenQFQuestion 13 of 20 14. digital image in computerised radiography is made up ofsilver halide crystalsCCDpixelsCMOSQuestion 14 of 20 15. phosphorus-32 emitsneutronsalpha particlesx raysbeta particlesQuestion 15 of 20 16. In bitewing method of radiography, for examination of maxillary deciduous lateral incisor, vertical angulation should be10602030Question 16 of 20 17. SI unit of radioactivity iscuriebecquerelgrayroentgenQuestion 17 of 20 18. Maximum cupping artifact is seen inMulti size computed tomographyCone beam computed tomographySpiral beam computed tomographyComputed tomographyQuestion 18 of 20 19. It is generally desirable that x-ray films be all of the following exceptCoated with emulsion on both sidesSensitive to visible lightHigh speedFine grain sizeQuestion 19 of 20 20. On a radiograph, you observe a radiolucency extending from the distal aspect of the maxillary canine to the posterior wall of the maxilla above the tuberosity. The most likely cause of this radiolucency is ____.AmeloblastomaMaxillary sinusDentigerous cystZygomatic process of the maxillaQuestion 20 of 20 Loading...
