EOH 353 - Global Perspective of Environmental Health » Spring 2020 » Chapter 8 Quiz

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Question #1
Which of the following is a measure of radiation dose related to biological effect?
A.   None of these is correct.
B.   The rad or gray
C.   The roentgen or coulomb per kilogram
D.   The curie or becquerel
E.   The rem or sievert
Question #2
Which of the following forms of radiation can penetrate up to a 2-cm layer of skin tissue?
A.   Alpha particles
B.   X-rays
C.   None of these is correct.
D.   Beta particles
E.   Gamma rays
Question #3
The amount of exposure to radiation that a person receives is not affected by which of the following?
A.   None of these is correct.
B.   Size or weight of the radioactive source
C.   Distance from the source
D.   Degree of radioactivity of the material
E.   Total time of exposure
Question #4
Which of the following products sometimes contain radioactive substances?
A.   Dentures
B.   Dentures, tobacco products, and smoke detectors
C.   Smoke detectors
D.   Tobacco products
E.   Toothpaste
Question #5
Which of the following is a measure used to describe the amount of radioactivity in a sample of material?
A.   The rem or sievert
B.   None of these is correct.
C.   The rad or gray
D.   The curie or becquerel
E.   The roentgen or coulomb per kilogram
Question #6
Which of the following statements is false?
A.   All of these are correct.
B.   Washing contaminated skin can reduce radiation exposure.
C.   Street clothing protects the skin against alpha and beta particles.
D.   Cosmic rays are a form of natural background radiation.
E.   Alpha and beta particles pose little or no hazard to human health.
Question #7
You calculated the dose you received for the following flight:  March 3rd 2016 you flew from Los Angeles to Boston Massachusetts. You took off and it took you 20 minutes to get to 20,000 feet. It took you an additional 15 minutes to get to the cruising altitude of 34,000 feet. After 5 hours you begin to descend and it takes you 45 minutes to get on the ground. The answer you obtained was :
A.   27.17 seiverts
B.   27.17 millisieverts
C.   27.17 microsieverts
D.   .0002717 millisieverts
Question #8
Which of the following portions of the optical spectrum has been most closely associated with adverse human health effects?
A.   UVB
B.   UBC
C.   IRA
D.   UVA
E.   IRB
Question #9
The unit of energy associated with emissions from radioactive material (radionuclide) is the electron volt (eV).
A.   FALSE
B.   TRUE
Question #10
Sources of nonionizing radiation include:
A.   infrared radiation.
B.   All of these are correct.
C.   visible light radiation.
D.   radiation from power lines.
E.   radio waves.
Question #11
A radiation exposure device that is used commonly in the occupational environment is a film badge.
A.   TRUE
B.   FALSE

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