X-ray Equipment and Positioning Practice Questions
20 free X-ray Equipment and Positioning practice questions for the CDA, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All X-ray Equipment and Positioning questions
- Q1. Which component of the dental X-ray machine directs and restricts the size of the X-ray beam?
- Q2. What is the function of the position-indicating device (PID)?
- Q3. Which PID shape provides the greatest reduction in patient radiation dose?
- Q4. What effect does increasing the source-to-film distance (long PID) have on the image?
- Q5. The paralleling technique requires the receptor to be placed:
- Q6. Which error occurs if the PID is not centered over the receptor?
- Q7. What is the correct vertical angulation for bitewing radiographs?
- Q8. Which component of the X-ray tube generates electrons through heating?
- Q9. What happens if the vertical angulation is too steep when taking a periapical radiograph?
- Q10. Which technique generally produces the most accurate and least distorted periapical images?
- Q11. Which error results from insufficient vertical angulation?
- Q12. What is the function of aluminum filtration in the X-ray tube head?
- Q13. What is the term for the area where the X-ray beam exits the tube head?
- Q14. What positioning error causes the contact areas of teeth to appear overlapped on a bitewing radiograph?
- Q15. Which step helps ensure correct image geometry when using the paralleling technique?
- Q16. Which type of PID reduces patient exposure the most?
- Q17. When using the bisecting technique, the central ray is directed:
- Q18. Which error results from bending a digital sensor or film?
- Q19. A blurred radiographic image is most likely caused by:
- Q20. What is the primary purpose of using receptor-holding devices?