Level 1 - Radiography Questions

45 Questions  I  By Mbelousov
Level 1 Radiography test - 135+ multiple choice questions

  
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1.  L2X-rays have a higher freq than visible light and therefore have a higher velocity.
A.
B.
2.  The cause for poor image definition could be considered:
A.
B.
C.
D.
3.  L9the developer is an alkaline solution which requires and acetic acid solution in the stop bath (fixer) to neutralize
A.
B.
4.  The image of the required penetrameter and hole on the radiograph indicates that the radiograph has the required:
A.
B.
C.
D.
5.  L3Radiographic sensitivity is considered to be a measure of how accurately a discontinuity can be imaged.
A.
B.
6.  Movement, geometry, and screen contact are three factors that affect radiographic:
A.
B.
C.
D.
7.  L3Geometric unsharpness can be improved by keeping the film as close as possible to the specimen during an exposure.
A.
B.
8.  L5the "photoelectric" effect involves complete absorption of the photon
A.
B.
9.  L3Film graininess greatly affects the amount of penumbra on a radiograph.
A.
B.
10.  Short wavelength electromagnetic radiation produced during the disintegration of nuclei or radioactive substances is called:
A.
B.
C.
D.
11.  L5when a photon goes through a "compton" effect, secondary radiation is often produced
A.
B.
12.  The purpose of agitating an X-ray film during development is to:
A.
B.
C.
D.
13.  A general rune often employed for determining the kilovoltage to be used when X-raying a part is:
A.
B.
C.
D.
14.  In a fluoroscopic inspection system using a 15-inch source-to-material distance and 2-inch material-to-screen distance, transverse vibration of which item will cause the most image blurring:
A.
B.
C.
D.
15.  "primary" radiation is considered to be any radiation that has not gone through a photolectric effect
A.
B.
16.  The purpose of a dated decay curve is to:
A.
B.
C.
D.
17.  For best results when manually processing film, solutions should be maintained within a temperature range of:
A.
B.
C.
D.
18.  L3Large grain films provide the best definition in a radiograph.
A.
B.
19.  The term used to express the number of curies of radioactivity per gram or ounce of source weight is:
A.
B.
C.
D.
20.  L3Inherent unsharpness causes poor contrast & definition but can be eliminated by using a longer source-to-film distance.
A.
B.
21.  L5when the energy form of an x-ray tube has penetrated through 3 half-value layers, only 3/4 of the original energy remains
A.
B.
22.  A graph showing (logarithmic scale) the relation between material thickness, kilovoltage, and exposure time is called:
A.
B.
C.
D.
23.  L5the energy of a photon cannot be destroyed, but can be converted into other forms by the photoelectric and compton effects
A.
B.
24.  Which has the shortest wavelengths:
A.
B.
C.
D.
25.  As the kilovoltage applied to the X-ray tube is raised:
A.
B.
C.
D.
26.  Lead screens in contact with the film during exposure:
A.
B.
C.
D.
27.  A thin metallic sheet (brass, copper, aluminum, etc) placed at the source to reduce effects of softer radiation is known as:
A.
B.
C.
D.
28.  L5the "bremsstrahlung" process involves the production of ion pairs when one electron collides with another
A.
B.
29.  L9excessive voltage across the x-ray tube will cause static marks on the radiographic film
A.
B.
30.  L9artifacts are often caused by improper use of safe-lights in the darkroom
A.
B.
31.  L5secondary radiation is never dangerous to the radiographer
A.
B.
32.  L2The "electromagnetic spectrum" describes the family of electromagnetic waves relative to their frequency and wavelength.
A.
B.
33.  L5An isotope, such as Cobalt 60, always emits rays that have a specific energy
A.
B.
34.  L1It is essential that every employer that uses the SNT-TC-1A doc establish a "Written Practice".
A.
B.
35.  Frilling or loosening of the emulsion from the base of the film is most likely caused by:
A.
B.
C.
D.
36.  In X-radiography, the ability to penetrate the test object is governed by:
A.
B.
C.
D.
37.  The normal development time for manually processing X-ray film is:
A.
B.
C.
D.
38.  The reason a "shim" is used in radiographic setup is to:
A.
B.
C.
D.
39.  Radiographic sensitivity, in the context of the minimum detectable flaw size, depends on:
A.
B.
C.
D.
40.  To produce X rays, electrons are accelerated to a high velocity by an electrical field and then suddenly stopped by a collision with a solid body. This body is called:
A.
B.
C.
D.
41.  Which of the following materials is suitable for use in vessels or pails used to mix processing solutions:
A.
B.
C.
D.
42.  L2Wavelength is usually described as the distance between two angstrom units.
A.
B.
43.  In performing fluoroscopic examination of a part, it is important to control
A.
B.
C.
D.
44.  During manual film processing, the purpose of the stop bath is to:
A.
B.
C.
D.
45.  With a given exposure time and kilovoltages, a properly exposed radiograph is obtained with a 6 milliamperes-minutes exposure at the distance of 20 inches. It is desired to increase the sharpness of detail in the image by increasing the source-to-film distance to 40 inches. The correct milliamperes-minutes exposure to obtain the desired radiographic density at the increased distance is:
A.
B.
C.
D.
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