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Level 1 - Radiography Questions

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

  
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1.  One of the general rules concerning the application of geometric principles of shadow formation to radiography is:
A.
B.
C.
D.
2.  The radiation intensity of a radioisotope:
A.
B.
C.
D.
3.  The selection of the proper type of film to be used for the X-ray examination of a particular part depends on:
A.
B.
C.
D.
4.  L5the energy of a photon cannot be destroyed, but can be converted into other forms by the photoelectric and compton effects
A.
B.
5.  L9"clearing time" refers to the time the film is in the stop bath(fixer)
A.
B.
6.  Three liquids which are essential to process an exposed film properly are:
A.
B.
C.
D.
7.  A properly exposed radiograph that is developed in a developer solution at a temperature of 58F for 5 minutes will probably be:
A.
B.
C.
D.
8.  The accidental movement of the specimen of the specimen or film during exposure or the use of a focus-film distance that is too small will:
A.
B.
C.
D.
9.  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.
10.  Which dose would be dangerous, if not fatal, if applied to the entire body in a short period of time:
A.
B.
C.
D.
11.  The formula for determining permissible accumulated personnel dose is:
A.
B.
C.
D.
12.  When producing radiographs, if the kilovoltage is increased:
A.
B.
C.
D.
13.  Gamma and X-radiation interact with matter and may be absorbed by:
A.
B.
C.
D.
14.  L3Back scattered radiation is often caused by low energy X-rays whose electron path was changed within the film.
A.
B.
15.  L2Visible light has a longer wavelength than X and Gamma rays.
A.
B.
16.  L9"water spots" are usually caused by leaving the film in the rinse tank or an excess time
A.
B.
17.  The density difference between two selected portions of a radiograph is known as:
A.
B.
C.
D.
18.  A beam of radiation consisting of a single wavelength is known as:
A.
B.
C.
D.
19.  The intensity of X or Gamma radiation is measured in:
A.
B.
C.
D.
20.  The best X-ray efficiency is produced when the target material has
A.
B.
C.
D.
21.  The small area in the X-ray tube from which the radiation emanates is called the:
A.
B.
C.
D.
22.  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.
23.  A penetrameter is used to indicate:
A.
B.
C.
D.
24.  A radioactive source with an activity of one curie has:
A.
B.
C.
D.
25.  L1An advantage of radiography is that it reveals internal discontinuities with access to only one side of the part being inspected.
A.
B.
26.  Two X-ray machines operating at the same nominal kilovoltage and milliamperage settings:
A.
B.
C.
D.
27.  L2When X-ray film is developed, the portion that was exposed to radiation turns dark.
A.
B.
28.  In film radiography, penetrameters are usually placed:
A.
B.
C.
D.
29.  Radiographic sensitivity, in the context of the minimum detectable flaw size, depends on:
A.
B.
C.
D.
30.  Lead screens in contact with the film during exposure:
A.
B.
C.
D.
31.  L3Penumbra can be reduced by increasing the source-to-specimen distance.
A.
B.
32.  X-ray exposure may be due to:
A.
B.
C.
D.
33.  Although there may be other reasons for using calcium tungstate screens in industrial radiography, they are most usually used to:
A.
B.
C.
D.
34.  The purpose of agitating an X-ray film during development is to:
A.
B.
C.
D.
35.  L5X & Gamma rays differ in that the gamma ray is actually a particle of matter that has both mass and weight
A.
B.
36.  Beta particles are:
A.
B.
C.
D.
37.  L3Scattered radiation and an excessive specimen-to-film distance will both cause a loss of definition.
A.
B.
38.  During manual film processing, the purpose of the stop bath is to:
A.
B.
C.
D.
39.  The term used to express the number of curies of radioactivity per gram or ounce of source weight is:
A.
B.
C.
D.
40.  L1If the SNT-TC-1A doc is to be used as a recommended guideline, the "Written Practice" must be submitted to ASNT for approval.
A.
B.
41.  The purpose of a dated decay curve is to:
A.
B.
C.
D.
42.  Approximately what percent of the original radioactivity is left after six half-lives:
A.
B.
C.
D.
43.  A photographic image recorded by the passage of X or gamma rays through a specimen onto a film is called a:
A.
B.
C.
D.
44.  L2A "cycle" is considered to be one complete wave either from peak to peak or trough to trough.
A.
B.
45.  The cause for poor image definition could be considered:
A.
B.
C.
D.
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