If the size of object is 20 cm, object-film distance is 5 cm and source-film distance is 25 cm, what is the size of object on film 1) 20 cm only 2) 21 cm only 3) 25 cm only 4) 22 cm only
RadiologyAnswer: 3
Sensitivity of a body tissue to radiation is dependent on 1. Blood flow 2. Mitotic rate of cells 3. Iron content 4. Protein content of cells
RadiologyAnswer: 2
Which of the following is useful for studying the movements of the tongue 1) Angiography 2) Arthroscope 3) Fluroscope 4) Sonograpgy
RadiologyAnswer: 3
Reduced salivary flow following irradiation is dose dependent. At what dose does the flow reach essentially zero? 1) 4000 rads 2) 5000 rads 3) 6000 rads 4) 7000 rads
RadiologyAnswer: 3
Distortion of image is more in 1) Parallel (or) long cone technique 2) Bisecting angle (or) short cone technique 3) Same in both of the above 4) No distoration in either of them
RadiologyAnswer: 2
The maximum permissible dose of radiation to the operator of an X-ray machine is 1) 0.05 rem per year 2) 0.5 rem per year 3) 5.0 rem per year 4) 50 rem per year
RadiologyAnswer: 3
For detection of herniation and perforation of fibrous disc of TMJ that is best indicated is 1) Transcranial view 2) CT scan 3) MRI 4) Arthrography
RadiologyAnswer: 4
In radiography "latent image period" is the period between 1) Subsequent doses of radiation 2) Exposure of film and development of image 3) Exposure to X-rays and development of radiographic image 4) None of the above
