1. Q.1 Radiation dose of CT scan of Head and Neck is equivalent to : A. 50 chest x-rays B. 100 chest x-rays C. 150 chest x-rays D. 200 chest x-rays

2. Q2. How many pixels are required to resolve one line pair ? A. 1 B. 2 C. 3 D. 4

3. Q3.First Direct Digital Imaging System(RVG) was introduced in the year : A. 1980 B. 1984 C. 1988 D. 1982

4. Q4. Size of a Pixel in CCD is approximately: A. 10 microns B. 20 microns C. 30 microns D. 40 microns

5. Q5. Radiation effective dose of CBCT is: A. 13 µSv B. 1-8 µSv C. 36-50 µSv D. 5-16 µSv

6. Q6. Most commonly used imaging for assessment of implant: A. Intra oral periapical radiograph B. Lateral Cephalogram C. Panoramic radiograph D. Dentascan