MDS PREP

Brown discolouration seen in old radiographic films is due to
1) Overdevelopment
2) Underdevelopment
3) Incomplete fixation
4) Exposure to light

Radiology Answer: 3

The substance most commonly used for protection against X-ray radiations is
1) Zinc
2) Steel
3) Lead
4) Porcelain

Radiology Answer: 3

80 kVp and 15 mA and source film distance of 8 inches exposure time for a film is 1/2 second. Keeping the kilovoltage and miliamperage constant exposure time at 16 inches
1. 1/2 second
2. 1 second
3. 2 second
4. 4 second

Radiology Answer: 3

Using "B" film, exposure is 1 R. What is the exposure when "D" film is used
1) 1 R
2) 1/2 R
3) 1/4 R
4) 1/8 R

Radiology Answer: 3

In reverse Townes projection central X-ray passess through
1) Maxillary sinus
2) Occipital bone
3) Buperior border of petrous
4) Inferior border of petrous

Radiology Answer: 2

Which of the following is/are Secreted by macrophages?
1, Coagulation proteins V. VII. IX, X/ plasmin
2. Cytokines IL-I C. Growth factor
4. All of the above

Radiology Answer: 4

The bisecting angle technique is used to take
1) Bitewing radiographs
2) Periapical radiographs
3) True occlusal radiographs of the mandible
4) None of the above

Radiology Answer: 2

Higher kVp is
1) Disadvantageous to film
2) Disadvantageous to patient
3) Advantageous to film
4) All of the above

Radiology Answer: 1

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MDS PREP

Brown discolouration seen in old radiographic films is due to1) Overdevelopment2) Underdevelopment3) Incomplete fixation4) Exposure to light

The substance most commonly used for protection against X-ray radiations is 1) Zinc2) Steel3) Lead4) Porcelain

80 kVp and 15 mA and source film distance of 8 inches exposure time for a film is 1/2 second. Keeping the kilovoltage and miliamperage constant exposure time at 16 inches 1. 1/2 second 2. 1 second 3. 2 second 4. 4 second

Using "B" film, exposure is 1 R. What is the exposure when "D" film is used1) 1 R2) 1/2 R3) 1/4 R4) 1/8 R

In reverse Townes projection central X-ray passess through1) Maxillary sinus2) Occipital bone3) Buperior border of petrous4) Inferior border of petrous

Which of the following is/are Secreted by macrophages? 1, Coagulation proteins V. VII. IX, X/ plasmin 2. Cytokines IL-I C. Growth factor 4. All of the above

The bisecting angle technique is used to take1) Bitewing radiographs2) Periapical radiographs3) True occlusal radiographs of the mandible4) None of the above

Higher kVp is 1) Disadvantageous to film2) Disadvantageous to patient3) Advantageous to film4) All of the above

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Brown discolouration seen in old radiographic films is due to
1) Overdevelopment
2) Underdevelopment
3) Incomplete fixation
4) Exposure to light

The substance most commonly used for protection against X-ray radiations is
1) Zinc
2) Steel
3) Lead
4) Porcelain

80 kVp and 15 mA and source film distance of 8 inches exposure time for a film is 1/2 second. Keeping the kilovoltage and miliamperage constant exposure time at 16 inches
1. 1/2 second
2. 1 second
3. 2 second
4. 4 second

Using "B" film, exposure is 1 R. What is the exposure when "D" film is used
1) 1 R
2) 1/2 R
3) 1/4 R
4) 1/8 R

In reverse Townes projection central X-ray passess through
1) Maxillary sinus
2) Occipital bone
3) Buperior border of petrous
4) Inferior border of petrous

Which of the following is/are Secreted by macrophages?
1, Coagulation proteins V. VII. IX, X/ plasmin
2. Cytokines IL-I C. Growth factor
4. All of the above

The bisecting angle technique is used to take
1) Bitewing radiographs
2) Periapical radiographs
3) True occlusal radiographs of the mandible
4) None of the above

Higher kVp is
1) Disadvantageous to film
2) Disadvantageous to patient
3) Advantageous to film
4) All of the above