MDS PREP
Cornoid process of mandible can be best viewed on
1) PA view of skull
2) Towne"s projection
3) Lateral view of skull
4) Wasters view
Radiology
Answer: 1
The best image obtained if duplicating film is exposed tp
1) X-rays
2) UV rays
3) Visible light
4) Infrared light
Radiology
Answer: 2
X-rays cause radiation damage primarily by their property of
1) Penetration
2) Radioactivity
3) Electromagnetic induction
4) Ionisation
Radiology
Answer: 4
Useful range of density for a dental X-ray is
1) 0.3-2
2) 1.2-2.4
3) 2.4-4.2
4) 4-6
Radiology
Answer: 1
Half value layer refers to
1. The rate at which an X-ray photon transfer"s the energy to irradiated matter
2. The thickness of a substance required to reduce the number of X-ray photons by half
3. Both the above
4. None of the above
Radiology
Answer: 2
The following is an example of non-particulate radiation
1) X-rays and gamma rays
2) Electrons and beta rays
3) X-rays and beta rays
4) X-rays and electrons
Radiology
Answer: 1
Too light, thin, faded image on radiographic film is the result of
1) Overexposure of film
2) Concentrated developer solution
3) Exhausted developer solution
4) Pre-exposure of radiographic
Radiology
Answer: 3
...............is not a property of X-rays
1. Ionization
2. Action on photographic film
3. Excitation
4. Collimation