Level 1 - Radiography Questions

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

  
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1.  Penetrameters for ________ are considered Group 1 Materials and need not have an identification notch.
A.
B.
C.
D.
2.  L1It is essential that every employer that uses the SNT-TC-1A doc establish a "Written Practice".
A.
B.
3.  Lead foil screens are used in radiography:
A.
B.
C.
D.
4.  The most widely used unit of measurement for measuring the rate at which the output of a gamma-ray source decays is the:
A.
B.
C.
D.
5.  A fluorescent intensifying screen will
A.
B.
C.
D.
6.  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.
7.  Static marks, which are black tree-like or circular marks on a radiograph, are often caused by:
A.
B.
C.
D.
8.  L2A "cycle" is considered to be one complete wave either from peak to peak or trough to trough.
A.
B.
9.  L2The "freq" of an X or gamma ray is measured in cycles per second.
A.
B.
10.  To prevent excessive backscatter from reaching a radiographic film, one should:
A.
B.
C.
D.
11.  The purpose of fixation is:
A.
B.
C.
D.
12.  In X-radiography, the ability to penetrate the test object is governed by:
A.
B.
C.
D.
13.  One requirement for keeping fluorescent screens in good condition is that they must:
A.
B.
C.
D.
14.  Atoms, molecules, and various subatomic particles which carry either a positive or negative electrical charge are called:
A.
B.
C.
D.
15.  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.
16.  The image of the required penetrameter and hole on the radiograph indicates that the radiograph has the required:
A.
B.
C.
D.
17.  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.
18.  L3Sensitivity in a radiograph is usually considered to be a function to be a function of Contrast and Definition.
A.
B.
19.  Very short wavelength electromagnetic radiation produced when electrons traveling at high speeds collide with matter is called:
A.
B.
C.
D.
20.  The radiation quality of a manna-ray source is:
A.
B.
C.
D.
21.  L9"clearing time" refers to the time the film is in the stop bath(fixer)
A.
B.
22.  Upon completing an X-ray exposure and turning the equipment off:
A.
B.
C.
D.
23.  Three liquids which are essential to process an exposed film properly are:
A.
B.
C.
D.
24.  A radioactive source with an activity of one curie has:
A.
B.
C.
D.
25.  The radiation intensity of a radioisotope:
A.
B.
C.
D.
26.  L9the basic difference between types of x-ray film is due to the size of the grains of silver bromide
A.
B.
27.  A beam of radiation consisting of a single wavelength is known as:
A.
B.
C.
D.
28.  When radiographing a part which contains a large crack, the crack will appear on the radiograph as:
A.
B.
C.
D.
29.  An excellent radiograph is obtained under given conditions of exposure with the film located at a distance of 36 inches from the target of the X-ray tube. If the film is now placed only 18 inches from the target, and all exposure conditions except time are held constant, the new exposure time will be:
A.
B.
C.
D.
30.  L3Scattered radiation and an excessive specimen-to-film distance will both cause a loss of definition.
A.
B.
31.  If a fluorescent screen is accidentally exposed to unattenuated X-rays, which of the following occurs:
A.
B.
C.
D.
32.  Water spots on films can be minimized by:
A.
B.
C.
D.
33.  The penetrating ability of an X-ray beam is governed by:
A.
B.
C.
D.
34.  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.
35.  If a film is placed in a developer solution and allowed to develop without any agitation:
A.
B.
C.
D.
36.  X rays, gamma rays, and alpha particles all have one thing in common - they are all:
A.
B.
C.
D.
37.  L1To comply with the guidelines of SNT-TC-1A, all three lvls of technicians must take a "General", "Practical", and "Specific" test if examinations are used to determine certification.
A.
B.
38.  Unwanted inclusions in a part will appear on a radiograph as:
A.
B.
C.
D.
39.  The sharpness of the outline in the image of the radiograph is a measure of:
A.
B.
C.
D.
40.  A fluoroscopic installation utilizing fluorescent screen requires:
A.
B.
C.
D.
41.  In order to increase the intensity of X-radiation:
A.
B.
C.
D.
42.  L9the developer solution transforms the silver bromide crystals to metallic silver causing the film to turn black
A.
B.
43.  Cobalt-60 used in nondestructive testing emits:
A.
B.
C.
D.
44.  L2When X-ray film is developed, the portion that was exposed to radiation turns dark.
A.
B.
45.  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.
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