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- Question 1 of 40
1. Question
A large source size can be compensated for by
CorrectIncorrect - Question 2 of 40
2. Question
The tube current in milliamperes multiplied by the time in seconds equals:
CorrectIncorrect - Question 3 of 40
3. Question
M1 x T1 = M2 x T2 and C2 x T2 = C2 x T2 are equations for the:
CorrectIncorrect - Question 4 of 40
4. Question
What is the one choice below that does not affect developer strength?
CorrectIncorrect - Question 5 of 40
5. Question
The minimum source-to-film distance required to reduce penumbra to satisfactory limits can be determined by using the equation D =
CorrectIncorrect - Question 6 of 40
6. Question
Covering the walls, floors, or any other object with lead, which may receive any of the primary radiation, is a method of controlling scatter. It is called:
CorrectIncorrect - Question 7 of 40
7. Question
Any material on the film side of the specimen that receives primary radiation may cause scatter called:
CorrectIncorrect - Question 8 of 40
8. Question
Inherent unsharpness is caused by free electrons that are generated by the radiographic ray as it passes through:
CorrectIncorrect - Question 9 of 40
9. Question
The formula for the inverse square law is:
CorrectIncorrect - Question 10 of 40
10. Question
The radiation effects which can be passed on to the offspring or to a later generation of a person receiving radiation are called:
CorrectIncorrect - Question 11 of 40
11. Question
Besides serving as a filter, screens of high atomic numbers, such as lead and lead antimony, also:
CorrectIncorrect - Question 12 of 40
12. Question
The range of thickness over which densities are obtained that are satisfactory for interpretation is a measure of the;
CorrectIncorrect - Question 13 of 40
13. Question
X-ray films with large grain size:
CorrectIncorrect - Question 14 of 40
14. Question
As the effective energy of the radiation increases up to about 250 kV:
CorrectIncorrect - Question 15 of 40
15. Question
Two serious obstacles to high-intensify fluoroscopy are:
CorrectIncorrect - Question 16 of 40
16. Question
In general, the quality of fluoroscopic equipment is best determined:
CorrectIncorrect - Question 17 of 40
17. Question
The load that can be handled by an X-ray tube focal spot is governed by:
CorrectIncorrect - Question 18 of 40
18. Question
In certain cases, it may advantageous to pack lead shot around a specimen. The purpose for doing this is to:
CorrectIncorrect - Question 19 of 40
19. Question
The absorption of radiation by a material varies:
CorrectIncorrect - Question 20 of 40
20. Question
In the microradiographic technique:
CorrectIncorrect - Question 21 of 40
21. Question
Which of the following X-ray generators would produce the narrowest cone of X-radiation?
CorrectIncorrect - Question 22 of 40
22. Question
Which of the following factors will not materially influence the image density of a radiograph?
CorrectIncorrect - Question 23 of 40
23. Question
Because of geometrical factors such as source size, source-to-specimen distance, and specimen-to-film distance, there can be a lack of perfect sharpness at the edges of indications. The unsharpness caused by geometrical factors may be referred to as the:
CorrectIncorrect - Question 24 of 40
24. Question
Two factors which greatly affect the suitability of the target material in an X-ray tube are:
CorrectIncorrect - Question 25 of 40
25. Question
Films that are left between lead screens too long in a high-temperature and high-humidity atmosphere may:
CorrectIncorrect - Question 26 of 40
26. Question
The quantitative measure of film blackening is referred to as:
CorrectIncorrect - Question 27 of 40
27. Question
A curve that relates density with the logarithm of exposure or of relative exposure is called:
CorrectIncorrect - Question 28 of 40
28. Question
A special radiographic method requiring two radiographs taken during separate exposures from two different positions to give the visual impression of a three-dimensional display when viewed in an optical device simultaneously is called:
CorrectIncorrect - Question 29 of 40
29. Question
The depth of a discontinuity can be estimated by making two exposures on a single film from two different positions of the X-ray tube. The depth of the discontinuity is computed from the shift in the shadow of the discontinuity with respect to the images of fixed markers on the front and back of the specimen. The method is called:
CorrectIncorrect - Question 30 of 40
30. Question
The activity of the fixer diminishes after being used for a period of time because the:
CorrectIncorrect - Question 31 of 40
31. Question
Increasing the X-ray or gamma ray energy will:
CorrectIncorrect - Question 32 of 40
32. Question
In million-volt radiography, filtration at the tube:
CorrectIncorrect - Question 33 of 40
33. Question
Film selection for an X-ray exposure depends on:
CorrectIncorrect - Question 34 of 40
34. Question
. Because of geometrical factors such as source size, source-to-specimen distance, and specimen-to-film distance, there can be a lack of perfect sharpness at the edges of indications. The unsharpness caused by these factors may be called the:
CorrectIncorrect - Question 35 of 40
35. Question
The main purpose of the X-ray generator controls on the equipment is to:
CorrectIncorrect - Question 36 of 40
36. Question
When X-rays, gamma rays, light, or electrons strike the photographic emulsion, a change takes place in the silver halide crystals. This change is called:
CorrectIncorrect - Question 37 of 40
37. Question
The ability of a material to block or partially block the passage of X-rays and gamma rays is called:
CorrectIncorrect - Question 38 of 40
38. Question
Source size, specimen thickness, and source-to-specimen distance are the three factors that determine the:
CorrectIncorrect - Question 39 of 40
39. Question
The absorption of gamma rays from a given source when passing through matter depends on the:
CorrectIncorrect - Question 40 of 40
40. Question
The fact that gases, when bombarded by radiation, ionize and become electrical conductors make them useful in:
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