MDS PREP
The purpose of aluminium filters in the path of X-ray beam is to
1. Increase contrast
2. Reduce patient exposure
3. Reduce film density
4. Reduce film details
Radiology
Answer: 2
Gamma camera in Nuclear Medicine is used for
1) Organ imaging
2) Measuring the radioactivity
3) Monitoring the surface contamination
4) RIA
Radiology
Answer: 2
Submentovertex view is best useful for
1) Sinuses
2) Zygomatic fractures
3) Mandibular fractures
4) Maxillary fractures
Radiology
Answer: 3
The structure of protein least affected by radiation is
1. Primary structure
2. Secondary structure
3. Tertiary structure
4. Quarternary structure
Radiology
Answer: 1
Radiographically mental foramen lies between the roots of
1. Canine and first premolar
2. First and second premolars
3. Second premolar and first molar
4. In the incisor region
Radiology
Answer: 2
Which of the following is most radiolucent
1. Porcelian
2. Composites
3. Dental amalgam
4. Zinc-oxide eugenol
Radiology
Answer: 1
Radiation dose to patient can be reduced by all of the following except
1) Speed films
2) Filters
3) By increasing target-object distance
4) Decreasing kilovoltage potential
Radiology
Answer: 4
...............is not a property of X-rays
1. Ionization
2. Action on photographic film
3. Excitation
4. Collimation