Industrial Radiography Quiz

105 Questions | By Suchanjv | Updated: Mar 21, 2022 | Attempts: 3716

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Industrial Radiography quiz for people studying for RT 2 CGSB exam.

Questions and Answers

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