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.   The rem or sievert
B.   The rad or gray
C.   The curie or becquerel
D.   None of these is correct.
E.   The roentgen or coulomb per kilogram
Question #2
Which of the following forms of radiation can penetrate up to a 2-cm layer of skin tissue?
A.   None of these is correct.
B.   Beta particles
C.   X-rays
D.   Gamma rays
E.   Alpha particles
Question #3
The amount of exposure to radiation that a person receives is not affected by which of the following?
A.   Total time of exposure
B.   Distance from the source
C.   Degree of radioactivity of the material
D.   Size or weight of the radioactive source
E.   None of these is correct.
Question #4
Which of the following products sometimes contain radioactive substances?
A.   Dentures
B.   Toothpaste
C.   Dentures, tobacco products, and smoke detectors
D.   Tobacco products
E.   Smoke detectors
Question #5
Which of the following is a measure used to describe the amount of radioactivity in a sample of material?
A.   The curie or becquerel
B.   The rad or gray
C.   None of these is correct.
D.   The rem or sievert
E.   The roentgen or coulomb per kilogram
Question #6
Which of the following statements is false?
A.   Cosmic rays are a form of natural background radiation.
B.   Street clothing protects the skin against alpha and beta particles.
C.   All of these are correct.
D.   Alpha and beta particles pose little or no hazard to human health.
E.   Washing contaminated skin can reduce radiation exposure.
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 microsieverts
B.   .0002717 millisieverts
C.   27.17 seiverts
D.   27.17 millisieverts
Question #8
Which of the following portions of the optical spectrum has been most closely associated with adverse human health effects?
A.   UBC
B.   UVA
C.   UVB
D.   IRB
E.   IRA
Question #9
The unit of energy associated with emissions from radioactive material (radionuclide) is the electron volt (eV).
A.   TRUE
B.   FALSE
Question #10
Sources of nonionizing radiation include:
A.   radio waves.
B.   infrared radiation.
C.   visible light radiation.
D.   All of these are correct.
E.   radiation from power lines.
Question #11
A radiation exposure device that is used commonly in the occupational environment is a film badge.
A.   FALSE
B.   TRUE

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