30 Question RT quiz

1. The interval between the time a film is placed in a fixer solution and the time when the original diffuse, yellow miliciness disappears is known as:

2. While using an Isotope the operator may vary.

3. Images of discontinuities close to the source side of the specimen become less clearly defined as:

4. The "density" of a radiographic image refers to:

5. The main factor that determines the penetrating ability of an X-ray beam is?

6. The ability of a material to block or partially block the passage of X-rays and gamma rays is referred to as:

7. The activity of the fixer diminishes after being used for a period of time because:

8. The slope of the characteristic curve of a radiographic film is called:

9. Constant agitation of the developer during the development process by means of mechanical stirrers or circulating pumps may:

10. A general rule governing the application of the geometric principles of shadow formation states that:

11. Lead screens are used for almost all exposures when using:

12. The main purpose of the X-ray generator controls on the equipment is:

13. The sharpness of a radiographic image is determined by?

14. Film selection for an X-ray exposure depends on:

15. Cobalt-59 becomes Cobalt-60 when it is placed in a nuclear reactor where it captures:

16. Subject contrast is affected by:

17. In X-ray radiography, alternating current must be changed to pulsating direct current in order to satisfy the need for unidirectional current. This change may be accomplished by

18. The load that can be handled by an X-ray tube focal spot is governed by:

19. A light image of a backing "B" on a processed radiograph is probably caused by:

20. Improper geometric factors, poor contact between film and lead foil screens, and graininess of film are possible causes of:

21. The developer solution is:

22. A special form of scatter due to X-ray diffraction effects in a specimen with large grains will result in:

23. The mottling caused by diffraction when radiographing fairly large-grained metallic specimens can be reduced and in some cases eliminated by:

24. Which of the following types of radiation is commonly used in radiographic testing?

25. Filters used at the port of the X-ray tube:

26. The primary form of energy conversion when electrons strike a target in an X-ray tube results in the production of:

27. The amount of unsharpness or blurring of a radiograph is:

28. The greys and blacks in a radiographic image are composed of:

29. What is the primary difference between X-rays and gamma rays of the same energy?

30. The primary function of a darkroom is the protection of sensitive film by control of:

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