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DANB Radio Exam Pre
| Question | Answer |
|---|---|
| The pedodontic film survey should include the following: | Smaller film size, shorter exposure times, and slightly steeper vertical angulation when utilizing bisect-the-angle technique |
| Which of the following is a correct statement about intensifying screens? | Thicker phosphor layers result in faster screens |
| A film with thin density and a herringbone pattern across it is the result of | film packet reversal |
| The safe light may be checked for accuracy by the | Observation coin test |
| Coulomb per kilogram is a unit of exposure, and its equivalent measurement is the | Roentgen |
| X-ray processing tanks are considered secondary containers, and according to OSHA (Occupational Safety and Health Administration) standards they must be | labeled |
| Penumbra is defined as | Fuzzy outline of a radiographic image |
| The hamular process is a | Radiopaque hooklike bony projection |
| Thermionic emission is created by a | Filament wire heated to incandescence |
| The tissue most sensitive to X-radiation is | Blood |
| A dark area between the teeth at the occlusal plane on a posterior bitewing indicates that the | Patient did not bite hard enough on the tab |
| Panoramic films should be marked with a(n) | Lead marker |
| Blurred films can result from | movement of the patient |
| The measurement of the number of oscillations per second of electromagnetic radiation is known as | Frequency |
| The developer and fixer tanks can be cleaned utilizing | Commercial acid solution and water |
| The projection that is used to survey one side of the mandible from the distal of the canine to the angle of the ramus, the condyle, and coronoid processes is the | Lateral oblique |
| Which electron is bound most tightly to the nucleus? | K-shell electron |
| Fluoride comtamination of a film from the operator's fingers results in | Black marks |
| Insufficient washing of processed radiographic film will result in a | brownish yellow stain on the radiograph |
| A maxillary molar film reveals a triangular radiopaque landmark on the lower corner of the film. The landmark visible in this film is the | coronoid process of mandible |
| A processed film reveals small white spots, indicating incomplete development. The error on the film during processing was caused by | films coming in contact with fixing solution before the proper processing procedure |
| The total radiation generated during dental radiographic exposure is determined by | Milliampere seconds (mAs) |
| The tire "tire track" pattern appears in an image if it is | Placed in the oral cavity backwards |
| When the target source film distance is doubled utilizing a 16-inch position-indicating device, the exposure time is adjusted by | Multiplying by 4 |
| Film fog can occur if | there is a light leak in the darkroom |
| Which is the hardening agent in film processing? | Potassium alum |
| Dark films will result from | Overdeveloping and overexposing |
| Temporary redness of the skin caused by an overexposure to radiation is known as | Erythema |
| What information helps to distinguish maxillary molar radiographs from mandibular molar radiographs? | the outline of the maxillary sinus is visible |
Created by:
Maljac