Which of the following restrorative material is most radiolucent 1) Methyl methacrylate 2) Conventional composites 3) Zinc oxide eugenol 4) Gutta-percha cone
RadiologyAnswer: 1
The structure of protein least affected by radiation is 1) Primary structure 2) Secondary structure 3) Tertiary structure 4) Quarternary structure
RadiologyAnswer: 1
What is the function of filtration process while taking radiographs? 1) Remove the short wavelength photons 2) Remove the portion of long wavelength photons 3) To increase the radiation dose to patient 4) None of the above
RadiologyAnswer: 2
Foreshortening of radiographic image results when central X-ray is 1) Parallel to object and film 2) Parallel to object but not to film 3) Perpendicular to film but not to object 4) Perpendicular to object but not to film
RadiologyAnswer: 3
Initiator in developing solution is 1) Acetic acid 2) Sodium thiosulphate 3) Hydroquinone 4) Potassium bromide
RadiologyAnswer: 3
Choose the false statement among the four 1) X-rays are ionizing rays 2) X-rays can be focused 3) X-rays cannot be seen or touched 4) X-rays can cause mutation
RadiologyAnswer: 2
Most susceptible to radiations are 1. Nucleic acids 2. Nerve cells 3. Muscle cells 4. Epithelial cells
RadiologyAnswer: 1
The extraoral radiograph that best demonstrates the subcondylar portion of mandible is the (neck of the condyle) 1) AP mandible 2) Waters view 3) Towne"s view 4) Submental vertex
