Level 1 - Radiography Questions

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

  
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1.  L2The wavelength of a typical X-ray is usually considered to be several miles long.
A.
B.
2.  The normal development time for manually processing X-ray film is:
A.
B.
C.
D.
3.  The difference between the densities of two areas of a radiograph is called:
A.
B.
C.
D.
4.  L2Rays from the X-ray source should be parallel to the plane of the film.
A.
B.
5.  The velocity of all electromagnetic radiation is:
A.
B.
C.
D.
6.  Lead foil in direct contact with X-ray film:
A.
B.
C.
D.
7.  Approximately what percent of the original radioactivity is left after six half-lives:
A.
B.
C.
D.
8.  The term used to describe the loss of excess energy by the nucleus of radioactive atoms is called:
A.
B.
C.
D.
9.  L5increasing the activity of an isotope source will increase the energy of the individual rays
A.
B.
10.  L2Frequency is described as the number of electromagnetic waves that pass a given point in one second.
A.
B.
11.  Water spots on films can be minimized by:
A.
B.
C.
D.
12.  Any of the body tissues may be injured by excessive exposure to X or gamma rays but particularly sensitive are:
A.
B.
C.
D.
13.  Gamma and X-radiation interact with matter and may be absorbed by:
A.
B.
C.
D.
14.  A large source size can be compensated for by:
A.
B.
C.
D.
15.  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.
16.  L2When X-ray film is developed, the portion that was exposed to radiation turns dark.
A.
B.
17.  Fluorescent intensifying screens are usually mounted in pairs in rigid holders called:
A.
B.
C.
D.
18.  One of the general rules concerning the application of geometric principles of shadow formation to radiography is:
A.
B.
C.
D.
19.  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.
20.  L3Gradual changes in specimen thickness produce radiographs that show excellent definition.
A.
B.
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21.  X rays, gamma rays, and alpha particles all have one thing in common - they are all:
A.
B.
C.
D.
22.  The two most common causes for excessively high-density radiographs are:
A.
B.
C.
D.
23.  L3Radiographic sensitivity is considered to be a measure of how accurately a discontinuity can be imaged.
A.
B.
24.  Three liquids which are essential to process an exposed film properly are:
A.
B.
C.
D.
25.  A fluoroscopic installation utilizing fluorescent screen requires:
A.
B.
C.
D.
26.  L9the developer solution transforms the silver bromide crystals to metallic silver causing the film to turn black
A.
B.
27.  L9because of the faster exposure time, the larger grain x-ray film will have the sharpest image
A.
B.
28.  The duration of an exposure is usually controlled by:
A.
B.
C.
D.
29.  Which dose would be dangerous, if not fatal, if applied to the entire body in a short period of time:
A.
B.
C.
D.
30.  L9"water spots" are usually caused by leaving the film in the rinse tank or an excess time
A.
B.
31.  Which has the shortest wavelengths:
A.
B.
C.
D.
32.  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.
33.  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.
34.  The lead symbol "B" is attached to the back of the film holder to determine:
A.
B.
C.
D.
35.  Frilling or loosening of the emulsion from the base of the film is most likely caused by:
A.
B.
C.
D.
36.  The cause for poor image definition could be considered:
A.
B.
C.
D.
37.  The density difference between two selected portions of a radiograph is known as:
A.
B.
C.
D.
38.  In X-radiography, the ability to penetrate the test object is governed by:
A.
B.
C.
D.
39.  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.
40.  Fluoroscopy differs from radiography in that:
A.
B.
C.
D.
41.  L1ASNT provides a service for examining Lvl I, II, and III personnel in the General and Specific areas.
A.
B.
42.  L9artifacts are often caused by improper use of safe-lights in the darkroom
A.
B.
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43.  The time required for one-half of the atoms in a particular sample of radioactive material to disintegrate is called:
A.
B.
C.
D.
44.  White crescent-shaped marks on an exposed X-ray film are most likely caused by:
A.
B.
C.
D.
45.  A radioactive source with an activity of one curie has:
A.
B.
C.
D.
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