Industrial Radiography Quiz
Industrial Radiography quiz for people studying for RT 2 CGSB exam.
- 1.Who is given credit for the discovery of X-ray?
- A.
Henri Becquerel
- B.
Wilhelm Roentgen
- C.
Marie Curie
- D.
Pierre Curie
- 2.There are four types of radiation-matter interactions that can contribute to the total attenuation. These are:
- A.
Compton scattering, pair production, photoelectric absorption, rayleigh scattering
- B.
Compton scattering, electron exchange, photoelectric absorption, rayleigh scattering
- C.
Electron exchange, pair production, photoelectric absorption, rayleigh scattering
- D.
None of the above
- 3.X-rays and Gamma rays are a form of:
- A.
Light
- B.
Particle Radiation
- C.
Electromagnetic Radiation
- D.
Both B and C
- 4.Who is given credit for the discovery of radioactive materials?
- A.
Henri Becquerel
- B.
Wilhelm Roentgen
- C.
Marie Curie
- D.
Pierre Curie
- 5.A specific radioactive source will always produce gamma rays at the same:
- A.
Intensity
- B.
Activity
- C.
Energy Levels
- D.
None of the above
- 6.Higher energy radiation will have more:
- A.
Speed
- B.
Incident Intensity
- C.
Penetrating Power
- D.
Both B and C
- 7.X-rays and Gamma rays present a health risk because they are a form of ionizing radiation, which means that the radiation has enough energy to:
- A.
Vibrate water molecules and generate heat
- B.
Break chemical bonds
- C.
Break physical bonds
- D.
None of the above
- 8.X-rays and Gamma rays have significant penetrating power due to their:
- A.
Short Wavelength
- B.
Medium Wavelength
- C.
Long Wavelength
- D.
Wide range of wavelengths
- 9.Ionizing radiation can be used in industrial radiography because the health hazards:
- A.
Have been eliminated with controls and procedures
- B.
Are minimized through controls and procedures
- C.
Are worth the risk
- D.
Are being ignored
- 10.X-rays and Gamma rays:
- A.
Always travel in a straight line
- B.
Can be influenced by an electrical field
- C.
Can be influenced by a magnetic field
- D.
None of the above
- 11.X-rays and Gamma rays are often referred to as photons because:
- A.
They possess a charge
- B.
They have mass
- C.
They occur as small packets of energy
- D.
None of the above
- 12.X-rays and Gamma rays:
- A.
Are both affected by radioactive decay
- B.
Are both produced by a radioactive atom
- C.
Have completely different properties
- D.
Differ only in their source
- 13.Newtons Inverse Square Law is useful in radiography because it indicates how the radiation intensity is affected by:
- A.
Radioactive decay
- B.
Distance from the source
- C.
The size of the source
- D.
None of the above
- 14.The rate at which a radioactive isotope changes to a more stable atom is know as the:
- A.
Isotope decay rate
- B.
Half-life
- C.
Activity
- D.
Attenuation
- 15.Attenuation of radiation is due to:
- A.
Absorption
- B.
Scattering
- C.
Radioactive decay
- D.
Both A and B
- 16.The number of X-ray or Gamma photons that are transmitted through a material depends on the:
- A.
Energy of the photons
- B.
Thickness of the material
- C.
Atomic number of the material
- D.
All of the above
- 17.After traveling through two half-value layers, the incident radiation has been reduced to:
- A.
50%
- B.
35%
- C.
20%
- D.
None of the above
- 18.The thickness of any given material where 50% of the incident energy has been attenuated is known as the:
- A.
Half-value layer
- B.
Linear attenuation coefficient
- C.
Decay rate
- D.
Mass attenuation coefficient
- 19.Undercut is the loss of resolution at a sharp, thickness transition area due to:
- A.
Scattering within the part
- B.
Backscatter
- C.
Sidescatter
- D.
Scattering within the film
- 20.Unexposed X-ray film is comprised of a plastic, transparent base coated with an emulsion containing radiation-sensitive particle known as:
- A.
Metalic silver crystals
- B.
Silver halide grains
- C.
Both A and B
- D.
Neither A and B
- 21.Collimators are used to:
- A.
Reduce the radiation beam spread
- B.
Filter the radiation beam
- C.
Increase film latitude
- D.
Decrease film latitude
- 22.Bremsstrahlung production of X-rays produces radiation that is composed of:
- A.
A small number of very defined energies
- B.
A continuous spectrum of energies over some range
- C.
Radiation of only one energy
- D.
None of the above
- 23.Exposure to ionizing radiation can be limited:
- A.
With the use of shielding
- B.
By increasing distance form the source
- C.
By limiting the time exposed to the radiation
- D.
All of the above
- 24.X-ray generators produce radiation through:
- A.
Bremsstrahlung processes
- B.
K-shell emmission processes
- C.
Radioactive decay
- D.
Both A and B
- 25.Manmade sources of radioactive sources are produced by:
- A.
By splitting the nucleus of atoms in the source material
- B.
Adding electrons to the source material
- C.
Introducing an extra neutron to the atoms of the source material
- D.
None of the above
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