Level 1 - Radiography Questions

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

  
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1.  L2A "cycle" is considered to be one complete wave either from peak to peak or trough to trough.
A.
B.
2.  Gamma and X-radiation interact with matter and may be absorbed by:
A.
B.
C.
D.
3.  The metal that forms the image on a n X-ray film is:
A.
B.
C.
D.
4.  The activity of the developer solution is maintained stable by:
A.
B.
C.
D.
5.  A general rule used to define the amount of radiation exposure that is excessive is:
A.
B.
C.
D.
6.  L9the developer is an alkaline solution which requires and acetic acid solution in the stop bath (fixer) to neutralize
A.
B.
7.  Water spots on films can be minimized by:
A.
B.
C.
D.
8.  L9water spots, crimp marks and static marks are all considered to be "artifacts" when they appear on the film
A.
B.
9.  A beam of radiation consisting of a single wavelength is known as:
A.
B.
C.
D.
10.  The formula for determining permissible accumulated personnel dose is:
A.
B.
C.
D.
11.  The duration of an exposure is usually controlled by:
A.
B.
C.
D.
12.  An unshielded isotope sources gives a dosage rate of 900 mR per hour at 10 feet. What would the unshielded dosage rate be at 30 feet?
A.
B.
C.
D.
13.  L3Inherent unsharpness causes poor contrast & definition but can be eliminated by using a longer source-to-film distance.
A.
B.
14.  L2X-rays have a higher freq than visible light and therefore have a higher velocity.
A.
B.
15.  The primary parts of an atom are:
A.
B.
C.
D.
16.  L9"water spots" are usually caused by leaving the film in the rinse tank or an excess time
A.
B.
17.  A radioactive source with an activity of one curie has:
A.
B.
C.
D.
18.  During manual film processing, the purpose of the stop bath is to:
A.
B.
C.
D.
19.  A section with a significant increase in thickness variation is required to be shown on a single radiograph within a desired film density range. This may be accomplished by:
A.
B.
C.
D.
20.  L9coarse-grain films are advantageous because they require considerably less time in the developer, stop bath and fixer solutions
A.
B.
21.  Lead foil screens are used in radiography:
A.
B.
C.
D.
22.  Beta particles are:
A.
B.
C.
D.
23.  A curie is the equivalent of:
A.
B.
C.
D.
24.  L9the developer solution transforms the silver bromide crystals to metallic silver causing the film to turn black
A.
B.
25.  When the minute silver grains on which the X-ray film image is formed group together in relatively large masses, they produce a visual impression called
A.
B.
C.
D.
26.  L9most radiographic film uses clear acetate or polyester base with emulsion on both sides
A.
B.
27.  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.
28.  What is sometimes used to change the alternating current from the high voltage transformer to direct current for the purpose of increasing the X-ray machine output:
A.
B.
C.
D.
29.  To prevent excessive backscatter from reaching a radiographic film, one should:
A.
B.
C.
D.
30.  The purpose of a dated decay curve is to:
A.
B.
C.
D.
31.  L9because of the faster exposure time, the larger grain x-ray film will have the sharpest image
A.
B.
32.  Which of the following types of radiation is emitted by cobalt-60 and used in nondestructive testing:
A.
B.
C.
D.
33.  A fluorescent intensifying screen will
A.
B.
C.
D.
34.  L9the basic difference between types of x-ray film is due to the size of the grains of silver bromide
A.
B.
35.  The small area in the X-ray tube from which the radiation emanates is called the:
A.
B.
C.
D.
36.  L9a control strip that has been exposed under a step wedge and processed after each replenishment is also used to check excess fogging caused by safe-lights
A.
B.
37.  Two X-ray machines operating at the same nominal kilovoltage and milliamperage settings:
A.
B.
C.
D.
38.  L2The term '' absorption'' refers to the ability of a material to permit X-rays to penetrate without loss of energy.
A.
B.
39.  Approximately what percent of the original radioactivity is left after six half-lives:
A.
B.
C.
D.
40.  Any of the body tissues may be injured by excessive exposure to X or gamma rays but particularly sensitive are:
A.
B.
C.
D.
41.  One of the general rules concerning the application of geometric principles of shadow formation to radiography is:
A.
B.
C.
D.
42.  The most common material used to provide protection against X rays is:
A.
B.
C.
D.
43.  L9artifacts are often caused by improper use of safe-lights in the darkroom
A.
B.
44.  Cobalt-60 used in nondestructive testing emits:
A.
B.
C.
D.
45.  L3Back scattered radiation is often caused by low energy X-rays whose electron path was changed within the film.
A.
B.
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