Type:
Test Bank
Resource:
Radiation Protection in Medical Radiography
Edition:
6th Edition
Author(s):
Mary Alice Statkiewicz Sherer
Sherer: Radiation Protection in Medical Radiography, 6th Edition
Chapter 01: Introduction to Radiation Protection
Test Bank
MULTIPLE CHOICE
1. Some consequences of ionization in human cells include: 1. creation of unstable atoms 2. production of free electrons 3. creation of reactive free radicals capable of producing substances poisonous to the cell A.
1 only
B.
2 only
C.
3 only
D.
1, 2, and 3
ANS:
D
REF:
2
2. When natural sources of ionizing radiation become increased because of accidental or deliberate human actions such as mining, they are referred to as _____ sources. A.
artificial
B.
enhanced natural
C.
extraterrestrial
D.
manmade
ANS:
B
REF:
14
3. Electromagnetic radiation can travel through space in the form of a wave but can interact with matter as a particle of energy. This dual nature is referred to as: A.
wave attenuation capability
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B.
wave-particle interchange ability
C.
wave-particle duality
D.
wave-particle phenomena
ANS:
C
REF:
9
4. Which of the following statements concerning the 1979 nuclear reactor accident at TMI-2 is not true? A.
Excess cancer deaths have been predicted to occur in the 2 million people living within 50 miles of the plant at the time of the accident.
B.
Excess cancer deaths have not been predicted to occur in the 2 million people living within 50 miles of the plant at the time of the accident.
C.
The equivalent dose (EqD) received by 2 million people living in the vicinity of the nuclear reactor at the time of the accident was 0.02 mSv (2 mrem).
D.
No melt-through of the reactor vessel occurred during the accident.
ANS:
A
REF:
19
5. Which of the following is a special form of radiation that is capable of creating electrically charged particles by removing orbital electrons from the atom of the material with which it interacts? A.
Ionizing radiation
B.
Nonionizing radiation
C.
Subatomic radiation
D.
Ultrasonic radiation
ANS:
A
REF:
2
6. Patients who have an understanding of the medical benefits of an imaging procedure because they received factual information about the study before having the examination are more likely to: A.
assume a small risk of biologic damage but not overcome any radiation phobia they may have
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B.
cancel their scheduled procedure because they are not willing to assume a small risk of biologic damage
C.
overcome any radiation phobia but not be willing to assume a small risk of possible biologic damage
D.
overcome any radiation phobia and be willing to assume a small risk of possible biologic damage
ANS:
D
REF:
8
7. Terrestrial radiation includes which of the following sources? A.
Long-lived radioactive elements, such as uranium-238, radium-226, and thorium-232 that are present in variable quantities in the crust of the earth
B.
Radioactive fallout from nuclear weapons tests in which detonation occurred above ground
C.
The sun and other stars
D.
Video display terminals and television receivers
ANS:
A
REF:
14
8. According to the U.S. Environmental Protection Agency (EPA), radon levels in homes should not exceed what level? A.
200 pCi/L
B.
135 pCi/L
C.
47 pCi/L
D.
4 pCi/L
ANS:
D
REF:
17
9. Cosmic radiation occurs in which two forms? A.
Solar and manmade
B.
Artificial and galactic
C.
Natural background and artificial
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D.
Solar and galactic
ANS:
D
REF:
17
10. The U.S. Food and Drug Administration (FDA) presently considers the risk of radiation exposure to the U.S. population from color television monitors to be: A.
substantial
B.
moderate
C.
very slight
D.
negligible
ANS:
D
REF:
18
11. Through which of the following routes can radon enter houses? 1. Crawl spaces under living areas 2. Floor drains and sump pumps 3. Porous cement block foundations A.
1 and 2 only
B.
1 and 3 only
C.
2 and 3 only
D.
1, 2, and 3
ANS:
D
REF:
15
12. Acute melting of the uranium dioxide fuel of a nuclear reactor core requires how great a temperature? A.
Less than 500 F
B.
At least 1000 F
C.
2000 F
D.
Greater than 5000 F
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