The following kVp setting produce greatest contrast in radiograph image 1) 70 kVp 2) 80 kVp 3) 90 kVp 4) 100 kVp
RadiologyAnswer: 1
Radiation injury to the haemopoietic system of the bone marrow occurs when the whole body exposure ranges between 1) 50-100 rads 2) 200-1000 rads 3) 1000-5000 rads 4) 10,000 rads to more
RadiologyAnswer: 2
A thin radiolucent line which follows the root outline on X-rays is 1) Lamina dura 2) Periodontal ligment 3) Nutrient canal 4) Pulp
RadiologyAnswer: 2
Which of these structures appears radiopaque? 1. Maxillary sinus 2. Nasal fossa 3. Nasal septum 4. Mental foramen
RadiologyAnswer: 3
An exposure of 2 R is recorded at point 8 cm. Keeping the same beam the exposure at 4 cm is 1) 4 R 2) 6 R 3) 8 R 4) 16 R
RadiologyAnswer: 3
Density of radiograph is independent of 1. Milliamperage 2. Target-film distance 3. Kilovoltage 4. Focal-spot
RadiologyAnswer: 4
The facial aspect of an intraoral film is determined by the 1) Anatomic landmarks 2) Concavity of the embossed dot 3) Convexity of the embossed dot 4) Curvature of the arch
RadiologyAnswer: 3
Which of the following statements is True 1) All photographic films are affected by X-rays to some extent 2) The standard temperature and time for developing X-rays are 3) X-ray films should be washed in running water for at least 30 minute 4) None of the above
