NEET MDS Quiz - Practice Test

1

Radiology

The region which is closest to satisfying all the principles of shadow casting and parallel placement of the film in a paralleling technique full mouth series of periodical radiographs is
1. Maxillary premolar view
2. Mandibular premolar view
3. Maxillary molar view
4. Mandubular molar view

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

The region closest to satisfying all the principles of shadow casting and parallel placement of the film in a paralleling technique full mouth series of periapical radiographs is mandibular molar view.

2

Radiology

Light radiographic film is due to�
1. Overdeveloping
2. Overfixing
3. Directly putting in fixer
4. Exposure to sunlight

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Overfixing occurs when the radiographic film remains in the fixing solution for an extended period, leading to excessive clearing of the image. Fixing agents, such as sodium thiosulfate, dissolve unexposed silver halide crystals. Prolonged exposure results in a lighter image as even some of the developed silver may be affected. Other options, such as overdeveloping, directly putting in fixer, or sunlight exposure, typically lead to other issues like dark films or fogging.

3

Radiology

Double intensifying screen and screen film are used in extraoral radiographs to
1) Reduce density
2) Reduce contrast
3) Reduce exposure time
4) Reduce secondary radiation

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Double intensifying screens with screen film significantly reduce exposure time by amplifying the X-ray effect. The screens convert X-ray photons to light photons, which expose the film more efficiently than direct X-ray exposure. This reduces radiation dose to the patient while maintaining image quality.

📚 Menu

📚 Select Subject

📚 Subjects

Practice Test

📝 Explanation:

📝 Explanation:

📝 Explanation:

📚 Menu

📚 Select Subject

📚 Subjects

Practice Test

📝 Explanation:

📝 Explanation:

📝 Explanation:

🎉 Quiz Completed!