If the size of object is 20 cm, object-film distance is 5 cm and source-film distance is 25 cm, what is the size of object on film 1. 20 cm only 2. 21 cm only 3. 25 cm only 4. 22 cm only
RadiologyAnswer: 3
The TMJ view that is used to view fractures of neck of condyle is 1) Trancranial 2) Infracranial 3) Both the above 4) None of the above
RadiologyAnswer: 2
All of the following are radiolucent except 1) Silicate restorations 2) Conventional composites 3) Zinc oxide eugenol 4) Porcelian restorations
RadiologyAnswer: 3
The maximum permissible dose of radiation to the operator of an X-ray machine is 1) 0.05 rem per year 2) 0.5 rem per year 3) 5.0 rem per year 4) 50 rem per year
RadiologyAnswer: 3
If the size of object is 20 cm, object-film distance is 5 cm and source-film distance is 25 cm, what is the size of object on film 1) 20 cm only 2) 21 cm only 3) 25 cm only 4) 22 cm only
RadiologyAnswer: 3
Best radiograph for viewing # of maxillary bone 1) Submentovertex 2) PA view 3) Waters view 4) Towne"s projection
RadiologyAnswer: 3
The main purpose of intensifying screens in extraoral radiographic films is 1) To increase the contrast of film 2) To increase the exposure time 3) To decrease the speed of film 4) Decrease secondary radiation to patient
RadiologyAnswer: 4
The gold standard for the diagnosis of osteoporosis is 1) Dual energy X-ray absorptiometry 2) Single energy X-ray absorptiometry 3) Ultrasound 4) Quantitative computed tomography
