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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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Question Excerpt

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1.  Fluorescent intensifying screens are usually mounted in pairs in rigid holders called:
A.
B.
C.
D.
2.  The most common material used to provide protection against X rays is:
A.
B.
C.
D.
3.  L9if large areas of the film are exposed to radiation, this will cause the developer to become exhausted faster
A.
B.
4.  L9replenishment of the developer is necessary when the densities on the control strip start to become darker
A.
B.
5.  The term used to express the number of curies of radioactivity per gram or ounce of source weight is:
A.
B.
C.
D.
6.  Lead foil in direct contact with X-ray film:
A.
B.
C.
D.
7.  L3Radiographic sensitivity is considered to be a measure of how accurately a discontinuity can be imaged.
A.
B.
8.  A fluorescent intensifying screen will
A.
B.
C.
D.
9.  The term used to describe the loss of excess energy by the nucleus of radioactive atoms is called:
A.
B.
C.
D.
10.  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.
11.  Assuming that a good radiograph is obtained at a setting of 10 milliamperes in 40 seconds, how much time will be necessary to obtain one equivalent radiograph if the milliamperage is changed to 5 milliamperes (all other conditions remain constant):
A.
B.
C.
D.
12.  Approximately what percent of the original radioactivity is left after six half-lives:
A.
B.
C.
D.
13.  The voltage and waveform applied to the X-ray tube by a high-voltage transformer primarily determines the:
A.
B.
C.
D.
14.  L5An "ion" is a charged part of an atom that can have either a +/- charge
A.
B.
15.  L2The "freq" of an X or gamma ray is measured in cycles per second.
A.
B.
16.  When radiographing a part which contains a large crack, the crack will appear on the radiograph as:
A.
B.
C.
D.
17.  Beta particles are:
A.
B.
C.
D.
18.  Upon completing an X-ray exposure and turning the equipment off:
A.
B.
C.
D.
19.  The two most common causes for excessively high-density radiographs are:
A.
B.
C.
D.
20.  L3Geometric unsharpness can be improved by keeping the film as close as possible to the specimen during an exposure.
A.
B.
21.  X-ray heat is generated by:
A.
B.
C.
D.
22.  L14lead screens increase photographic action
A.
B.
23.  The image of the required penetrameter and hole on the radiograph indicates that the radiograph has the required:
A.
B.
C.
D.
24.  L5X & Gamma rays differ in that the gamma ray is actually a particle of matter that has both mass and weight
A.
B.
25.  L9the basic difference between types of x-ray film is due to the size of the grains of silver bromide
A.
B.
26.  L5the bremsstrahlung process may cause energy to be converted through additional compton and photolelectric effects
A.
B.
27.  In order to increase the intensity of X-radiation:
A.
B.
C.
D.
28.  If a film is placed in a developer solution and allowed to develop without any agitation:
A.
B.
C.
D.
29.  A graph which expresses the relationship between material thickness, KV, and Time specific to film, machine, FFD, processing conditions, and the resulting photographic density is called:
A.
B.
C.
D.
30.  Static marks, which are black tree-like or circular marks on a radiograph, are often caused by:
A.
B.
C.
D.
31.  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.
32.  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.
33.  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.
34.  The purpose of fixation is:
A.
B.
C.
D.
35.  A large source size can be compensated for by:
A.
B.
C.
D.
36.  Excessive exposure of film to light prior to development of the film will most likely result in:
A.
B.
C.
D.
37.  L3A distorted image on the radiograph can be caused when the specimen is not parallel with the film.
A.
B.
38.  L3Scattered radiation and an excessive specimen-to-film distance will both cause a loss of definition.
A.
B.
39.  L9"water spots" are usually caused by leaving the film in the rinse tank or an excess time
A.
B.
40.  Scattered radiation caused by any material, such as a wall or floor, table top, or cassette that is located in back of the film is known as:
A.
B.
C.
D.
41.  Movement, geometry, and screen contact are three factors that affect radiographic:
A.
B.
C.
D.
42.  L5increasing the activity of an isotope source will increase the energy of the individual rays
A.
B.
43.  Lead screens in contact with the film during exposure:
A.
B.
C.
D.
44.  When referring to a "2T" or "4T" hole in the ASTM penetrameter, the T refers to:
A.
B.
C.
D.
45.  L9coarse-grain films are advantageous because they require considerably less time in the developer, stop bath and fixer solutions
A.
B.
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