Question 1

As a result of technologic advances since the 1970s and strict regulations imposed within the United States by the FDA regarding consumer products containing radioactive material,the radiation exposure of the general public from such produces may now be considered

Accepted Answer

A)  substantial.
B)  moderate.
C)  very slight.
D)  negligible.E) B) and C)
F) All of the above

Question 2

Cosmic radiation occurs in which two forms?

Accepted Answer

A)  Solar and manmade
B)  Artificial and galactic
C)  Natural background and artificial
D)  Solar and galacticE) A) and D)
F) A) and C)

Question 3

Which of the following is considered by the EPA to be the second leading cause of lung cancer in the United States?

Accepted Answer

A)  Annual PA and lateral chest radiographic images
B)  Cosmic ray exposure
C)  Radon exposure
D)  A fluoroscopic examination of the upper gastrointestinal tractE) A) and C)
F) None of the above

Question 4

What is the latent period for most radiation-induced cancers?

Accepted Answer

A)  1 year
B)  5 years
C)  7 years
D)  15 years or moreE) A) and C)
F) C) and D)

Question 5

Which of the following helps shield the global population from exposure to essentially all high-energy,bombarding cosmic rays?

Accepted Answer

A)  Clouds
B)  Fog
C)  Atmosphere and magnetic field of the Earth
D)  SmogE) B) and C)
F) A) and D)

Question 6

What is the half-life of radon-220?

Accepted Answer

A)  54.5 seconds
B)  8 days
C)  2 years
D)  1622 yearsE) B) and C)
F) All of the above A

Question 7

In the electromagnetic spectrum,higher frequencies are associated with

Accepted Answer

A)  longer wavelengths and lower energies.
B)  longer wavelengths and higher energies.
C)  shorter wavelengths and lower energies.
D)  shorter wavelengths and higher energies.E) B) and C)
F) None of the above

Question 8

The mass of an alpha particle is approximately

Accepted Answer

A)  two times the mass of a hydrogen atom and a negative charge of minus 2.
B)  four times the mass of a hydrogen atom and a positive charge twice that of an electron.
C)  six times the mass of a hydrogen atom and a negative charge of minus 1.
D)  eight times the mass of a hydrogen atom and a positive charge four times that of an electron.E) A) and B)
F) A) and C)

Question 9

The first decay product of radium is

Accepted Answer

A)  cesium.
B)  radon.
C)  strontium.
D)  x-ray.E) A) and C)
F) A) and B)

Question 10

Terrestrial radiation includes which of the following sources?

Accepted Answer

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 beyond the solar system
D)  Airport surveillance systems and electron microscopesE) All of the above
F) B) and D)

Question 11

Which of the following sources of radiation is manmade?
1) Atmospheric fallout from nuclear weapons testing
2) Cosmic radiation from the sun and beyond the solar system
3) Nuclear power plant accidents as a consequence of natural disasters

Accepted Answer

A)  1 and 2 only
B)  1 and 3 only
C)  2 and 3 only
D)  1,2,and 3E) None of the above
F) All of the above

Question 12

Which of the following are forms of electromagnetic radiation?
1) Microwaves
2) Visible light
3) X-rays
4) Gamma rays
5) Ultraviolet radiation

Accepted Answer

A)  1,2,and 3 only
B)  2,3,and 4 only
C)  3,4,and 5 only
D)  1,2,3,4,and 5E) A) and B)
F) B) and D)

Question 13

Of the two sources of ionizing radiation listed below,which source remains fairly constant from year to year?

Accepted Answer

A)  Manmade
B)  NaturalC) A) and B)
D) undefined

Question 14

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

Accepted Answer

A)  1 and 2 only
B)  1 and 3 only
C)  2 and 3 only
D)  1,2,and 3E) B) and D)
F) All of the above D

Question 15

Which of the following radiation quantities use the same unit of measure?
1) Effective dose and equivalent dose
2) Exposure and effective dose
3) Absorbed dose and equivalent dose

Accepted Answer

A)  1 only
B)  2 only
C)  3 only
D)  1,2,and 3E) C) and D)
F) B) and C)

Question 16

What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans?

Accepted Answer

A)  2.0 mSv
B)  3.2 mSv
C)  6.3 mSv
D)  9.6 mSvE) A) and B)
F) A) and D)

Question 17

Acute melting of the uranium dioxide fuel of a nuclear reactor core requires how great a temperature?

Accepted Answer

A)  Less than 500° F
B)  At least 1000° F
C)  2000° F
D)  Greater than 5000° FE) A) and C)
F) A) and D)

Question 18

What is the most common unit of measure of equivalent dose?

Accepted Answer

A)  Coulomb per kilogram
B)  Milligray
C)  Millisievert
D)  MicrosievertE) None of the above
F) A) and B)

Question 19

A flight on a typical commercial airliner results in an equivalent dose rate of

Accepted Answer

A)  0.001 to 0.005 mSv/hr.
B)  0.005 to 0.01 mSv/hr.
C)  0.02 to 0.04 mSv/hr.
D)  0.05 to 0.09 mSv/hr.E) A) and B)
F) C) and D) B

Question 20

When exposed to high radon levels in the home,which of the following groups of people have the highest risk of developing lung cancer?

Accepted Answer

A)  Teenagers
B)  Adults from 20 to 30 years of age
C)  Nonsmokers
D)  SmokersE) B) and D)
F) A) and D)

Exam 2: Radiation: Types, sources, and Doses Received

As a result of technologic advances since the 1970s and strict regulations imposed within the United States by the FDA regarding consumer products containing radioactive material,the radiation exposure of the general public from such produces may now be considered

Correct AnswerverifiedShow Answer

Cosmic radiation occurs in which two forms?

Correct AnswerverifiedShow Answer

Which of the following is considered by the EPA to be the second leading cause of lung cancer in the United States?

Correct AnswerverifiedShow Answer

What is the latent period for most radiation-induced cancers?

Correct AnswerverifiedShow Answer

Which of the following helps shield the global population from exposure to essentially all high-energy,bombarding cosmic rays?

Correct AnswerverifiedShow Answer

What is the half-life of radon-220?

Correct AnswerverifiedA

In the electromagnetic spectrum,higher frequencies are associated with

Correct AnswerverifiedShow Answer

The mass of an alpha particle is approximately

Correct AnswerverifiedShow Answer

The first decay product of radium is

Correct AnswerverifiedShow Answer

Terrestrial radiation includes which of the following sources?

Correct AnswerverifiedShow Answer

Which of the following sources of radiation is manmade? 1) Atmospheric fallout from nuclear weapons testing 2) Cosmic radiation from the sun and beyond the solar system 3) Nuclear power plant accidents as a consequence of natural disasters

Correct AnswerverifiedShow Answer

Which of the following are forms of electromagnetic radiation? 1) Microwaves 2) Visible light 3) X-rays 4) Gamma rays 5) Ultraviolet radiation

Correct AnswerverifiedShow Answer

Of the two sources of ionizing radiation listed below,which source remains fairly constant from year to year?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

Which of the following radiation quantities use the same unit of measure? 1) Effective dose and equivalent dose 2) Exposure and effective dose 3) Absorbed dose and equivalent dose

Correct AnswerverifiedShow Answer

What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans?

Correct AnswerverifiedShow Answer

Acute melting of the uranium dioxide fuel of a nuclear reactor core requires how great a temperature?

Correct AnswerverifiedShow Answer

What is the most common unit of measure of equivalent dose?

Correct AnswerverifiedShow Answer

A flight on a typical commercial airliner results in an equivalent dose rate of

Correct AnswerverifiedB

When exposed to high radon levels in the home,which of the following groups of people have the highest risk of developing lung cancer?

Correct AnswerverifiedShow Answer

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A

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D

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B

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