Level 1 - Radiography Questions

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Radiography Quizzes & Trivia
Level 1 Radiography test - 135+ multiple choice questions

  
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1.  Cobalt-60 used in nondestructive testing emits:
A.
B.
C.
D.
2.  If a film is placed in a developer solution and allowed to develop without any agitation:
A.
B.
C.
D.
3.  Three liquids which are essential to process an exposed film properly are:
A.
B.
C.
D.
4.  L9water spots, crimp marks and static marks are all considered to be "artifacts" when they appear on the film
A.
B.
5.  Unexposed boxes of X-ray film should be stored:
A.
B.
C.
D.
6.  When manually processing films, the purpose for sharply taping hangers two or three times after the films have been lowered in the developer is to:
A.
B.
C.
D.
7.  L1If the SNT-TC-1A guidlines are to be followed, the Lvl III technician should have the knowledge of other commonly used methods of NDT even though cert is needed in only the radiographic area.
A.
B.
8.  X rays and gamma rays always travel
A.
B.
C.
D.
9.  Kilovoltage, exposure time, and source-to-film distance are three of the most important X-ray exposure factors that can be controlled. A fourth such exposure factor is:
A.
B.
C.
D.
10.  Static marks, which are black tree-like or circular marks on a radiograph, are often caused by:
A.
B.
C.
D.
11.  A sheet of lead with an opening cut in the shape of the part to be radiographed may be used to decrease the effect of scattered radiation which undercuts the specimens. Such a device is called:
A.
B.
C.
D.
12.  The density of a radiograph image refers to:
A.
B.
C.
D.
13.  Movement, geometry, and screen contact are three factors that affect radiographic:
A.
B.
C.
D.
14.  Two X-ray machines operating at the same nominal kilovoltage and milliamperage settings:
A.
B.
C.
D.
15.  L9the basic difference between types of x-ray film is due to the size of the grains of silver bromide
A.
B.
16.  L3Film graininess greatly affects the amount of penumbra on a radiograph.
A.
B.
17.  Any of the body tissues may be injured by excessive exposure to X or gamma rays but particularly sensitive are:
A.
B.
C.
D.
18.  L2The higher the "amplitude" of an electromagnetic wave, the higher the energy.
A.
B.
19.  Radiographic sensitivity, in the context of the minimum detectable flaw size, depends on:
A.
B.
C.
D.
20.  If a piece of lead 1/2-inch this is placed in the path of a beam of radiation emanating from cobalt-60, it will reduce the dose rate at a given location by:
A.
B.
C.
D.
21.  When radiographing a part which contains a large crack, the crack will appear on the radiograph as:
A.
B.
C.
D.
22.  L2The "freq" of an X or gamma ray is measured in cycles per second.
A.
B.
23.  A general rule used to define the amount of radiation exposure that is excessive is:
A.
B.
C.
D.
24.  The term used to express the number of curies of radioactivity per gram or ounce of source weight is:
A.
B.
C.
D.
25.  Lead foil in direct contact with X-ray film:
A.
B.
C.
D.
26.  The primary parts of an atom are:
A.
B.
C.
D.
27.  L9replenishment of the developer is necessary when the densities on the control strip start to become darker
A.
B.
28.  A good radiograph is obtained using a milliamperage of 15 milliamperes and an exposure time of 1/2 minute. What exposure time will be necessary to produce and equivalent radiograph is the milliamperage is changed to 5 milliamperes and all other conditions remain the same?
A.
B.
C.
D.
29.  A beam of radiation consisting of a single wavelength is known as:
A.
B.
C.
D.
30.  Penetrameters for ________ are considered Group 1 Materials and need not have an identification notch.
A.
B.
C.
D.
31.  L14lead screens increase photographic action
A.
B.
32.  "primary" radiation is considered to be any radiation that has not gone through a photolectric effect
A.
B.
33.  The most common material used to provide protection against X rays is:
A.
B.
C.
D.
34.  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.
35.  Primary radiation which strikes a film holder or cassette through a thin portion of the specimen will cause scattering into the shadows of the adjacent thicker portions producing an effect called:
A.
B.
C.
D.
36.  L1The 1980 Edition of SNT-TC-1A permits the employer to waive an examination for Lvl III personnel provided that documentation is on file showing the technician's qualifications.
A.
B.
37.  The intensity of X or Gamma radiation is measured in:
A.
B.
C.
D.
38.  L9coarse-grain films are advantageous because they require considerably less time in the developer, stop bath and fixer solutions
A.
B.
39.  L9most radiographic film uses clear acetate or polyester base with emulsion on both sides
A.
B.
40.  L3Scattered radiation and an excessive specimen-to-film distance will both cause a loss of definition.
A.
B.
41.  L5increasing the activity of an isotope source will increase the energy of the individual rays
A.
B.
42.  L1It is essential that every employer that uses the SNT-TC-1A doc establish a "Written Practice".
A.
B.
43.  L5the energy of a photon cannot be destroyed, but can be converted into other forms by the photoelectric and compton effects
A.
B.
44.  An excellent radiograph is obtained under given exposure conditions with a tube current of 5 milliamperes and an exposure time of 12 minutes. If other conditions are not changed, what exposure time would be required if the X-ray tube current could be raised to 10 milliamperes?
A.
B.
C.
D.
45.  L5when a photon goes through a "compton" effect, secondary radiation is often produced
A.
B.
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