Question 1

Uranium-235,under the proper circumstances,will undergo nuclear decay releasing 3 high speed neutrons in the process.

Accepted Answer

A)   The neutrons released slow down with time and are not functional.
B)   The neutrons released can be used to cause fusion reactions.
C)   The neutrons released can cause a chain reaction with other U-235 atoms.
D)   The neutrons are recaptured by the nucleus to produce heavier atoms.E) B) and C)
F) A) and D)

Question 2

The curie,becquerel and roentgen are all physical units of radiation.

Accepted Answer

A) True 
 B)False

Question 3

There are some elements within the periodic table that do not occur in nature.One of the man-made elements is _____ .

Accepted Answer

A)   Ta
B)   Pt
C)   Tc
D)   LaE) None of the above
F) A) and C)

Question 4

The term "nuclear energy" is most closely associated with which one of the following processes?

Accepted Answer

A)   nuclear fusion
B)   nuclear fission
C)   cyclotron bombardment
D)   radioactive decayE) None of the above
F) A) and D)

Question 5

What is the nature of the reactions that occur in a star?

Accepted Answer

A)   They are extremely fast chemical reactions
B)   They are fission reactions
C)   They are a mixture of chemical & nuclear reactions
D)   They are fusion reactionsE) A) and B)
F) A) and C)

Question 6

One of the symbols for a beta particle is  
 .

Accepted Answer

A) True 
 B)False

Question 7

Which of the following would have the least penetrating power into matter?

Accepted Answer

A)   alpha particles
B)   beta particles
C)   gamma rays
D)   neutronsE) None of the above
F) B) and D)

Question 8

How much of a fissionable material is required to have a self-sustaining reaction?

Accepted Answer

A)   A mass of the fissionable element that is three times its atomic weight is required.
B)   A mass of the fissionable element that is greater than the mass of the control rods.
C)   A supercritical mass of fissionable material is required and causes branching.
D)   A critical mass of fissionable material is required and varies depending on the identity of the fissionable material.E) A) and C)
F) C) and D)

Question 9

Which of the following is not a nuclear reaction?

Accepted Answer

A)   fusion
B)   radioactive decay
C)   fission
D)   redoxE) A) and D)
F) None of the above

Question 10

A patient undergoes external irradiation with Co-60 for treatment of cancer.Which of the following would you NOT expect to observe as a result of this type of treatment?

Accepted Answer

A)   diarrhea
B)   hair loss
C)   bone marrow destruction
D)   altered blood chemistryE) A) and D)
F) None of the above

Question 11

A common use of radioisotopes is to speed up chemical reactions.

Accepted Answer

A) True 
 B)False

Question 12

Carbon-14 is only effective in dating an object up to approximately 10 half-lives.The reason is that the speed with which C-14 decays increases after 10 half-lives.

Accepted Answer

A) True 
 B)False

Question 13

Consider the figure below.Which form of emitted radiation would follow the path shown by the arrow labeled 1?

-)  C)  ( \gamma )  D)  ( \beta -) . " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   ( α\alphaα ) 
B)   ( β\betaβ -) 
C)   ( γ\gammaγ ) 
D)   ( β\betaβ -) . E) A) and B)
F) B) and C)

Question 14

Free radicals are dangerous because

Accepted Answer

A)   they are found incorporated in any radioisotope,including those that can enter the body through the lungs as does radon
B)   they can be taken into the body in the food eaten if that food has been grown in radioactive soil
C)   they are substances that are missing some electrons and are extremely active chemically
D)   All of these responses are correct.E) A) and D)
F) A) and C)

Question 15

Film badges will detect only X-rays.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following radioisotopes is not used as a diagnostic tracer?

Accepted Answer

A)   I-131
B)   Mg-24
C)   Kr-81
D)   Fe-59E) All of the above
F) B) and C)

Question 17

What characteristic is important in using radioisotope dating for very old items,such as rocks suspected to be over 100,000,000 years old?

Accepted Answer

A)   The radioisotope cannot be soluble in water.
B)   The radioisotope must give off light for easy measurement.
C)   The radioisotope in question must decay to another radioisotope.
D)   The radioisotope should have a very long half-life.E) All of the above
F) None of the above

Question 18

Ionizing radiation produced fee radicals in living tissue.

Accepted Answer

A) True 
 B)False

Question 19

The intensity of a radiation source was measured by a Geiger-Müller counter to be 236 counts per minute when the counter was place 124 ft from the source.What will be the intensity when the counter is 248 ft from the source?

Accepted Answer

A)   59.0 counts per minute
B)   236 counts per minute
C)   118 counts per minute
D)   472 counts per minuteE) B) and C)
F) None of the above

Question 20

Nuclear emissions are passed through a tunnel that has a positive plate on the top and a negative plate on the bottom.Which of the following emissions is deflected the greatest by the electrical field?

Accepted Answer

A)   ( α\alphaα  particles) 
B)   ( β\betaβ  particles) 
C)   neutrons
D)   ( γ\gammaγ  rays)  E) C) and D)
F) A) and B)

Exam 10: Radioactivity and Nuclear Processes

Ionizing radiation produced fee radicals in living tissue.

Correct Answer
verified

Nuclear emissions are passed through a tunnel that has a positive plate on the top and a negative plate on the bottom.Which of the following emissions is deflected the greatest by the electrical field?

Correct Answer
verified

How much of a fissionable material is required to have a self-sustaining reaction?

Correct Answer
verified

Which of the following would have the least penetrating power into matter?

Correct Answer
verified

The curie,becquerel and roentgen are all physical units of radiation.

Correct Answer
verified

One of the symbols for a beta particle is .

Correct Answer
verified

The intensity of a radiation source was measured by a Geiger-Müller counter to be 236 counts per minute when the counter was place 124 ft from the source.What will be the intensity when the counter is 248 ft from the source?

Correct Answer
verified

Uranium-235,under the proper circumstances,will undergo nuclear decay releasing 3 high speed neutrons in the process.

Correct Answer
verified

Film badges will detect only X-rays.

Correct Answer
verified

What characteristic is important in using radioisotope dating for very old items,such as rocks suspected to be over 100,000,000 years old?

Correct Answer
verified

A patient undergoes external irradiation with Co-60 for treatment of cancer.Which of the following would you NOT expect to observe as a result of this type of treatment?

Correct Answer
verified

Free radicals are dangerous because

Correct Answer
verified

Which of the following radioisotopes is not used as a diagnostic tracer?

Correct Answer
verified

Correct Answer
verified

A common use of radioisotopes is to speed up chemical reactions.

Correct Answer
verified

Which of the following is not a nuclear reaction?

Correct Answer
verified

The term "nuclear energy" is most closely associated with which one of the following processes?

Correct Answer
verified

What is the nature of the reactions that occur in a star?

Correct Answer
verified

There are some elements within the periodic table that do not occur in nature.One of the man-made elements is _____ .

Correct Answer
verified

Carbon-14 is only effective in dating an object up to approximately 10 half-lives.The reason is that the speed with which C-14 decays increases after 10 half-lives.

Correct Answer
verified

Exam 10: Radioactivity and Nuclear Processes

Ionizing radiation produced fee radicals in living tissue.

Correct AnswerverifiedShow Answer

Nuclear emissions are passed through a tunnel that has a positive plate on the top and a negative plate on the bottom.Which of the following emissions is deflected the greatest by the electrical field?

Correct AnswerverifiedShow Answer

How much of a fissionable material is required to have a self-sustaining reaction?

Correct AnswerverifiedShow Answer

Which of the following would have the least penetrating power into matter?

Correct AnswerverifiedShow Answer

The curie,becquerel and roentgen are all physical units of radiation.

Correct AnswerverifiedShow Answer

One of the symbols for a beta particle is .

Correct AnswerverifiedShow Answer

The intensity of a radiation source was measured by a Geiger-Müller counter to be 236 counts per minute when the counter was place 124 ft from the source.What will be the intensity when the counter is 248 ft from the source?

Correct AnswerverifiedShow Answer

Uranium-235,under the proper circumstances,will undergo nuclear decay releasing 3 high speed neutrons in the process.

Correct AnswerverifiedShow Answer

Film badges will detect only X-rays.

Correct AnswerverifiedShow Answer

What characteristic is important in using radioisotope dating for very old items,such as rocks suspected to be over 100,000,000 years old?

Correct AnswerverifiedShow Answer

A patient undergoes external irradiation with Co-60 for treatment of cancer.Which of the following would you NOT expect to observe as a result of this type of treatment?

Correct AnswerverifiedShow Answer

Free radicals are dangerous because

Correct AnswerverifiedShow Answer

Which of the following radioisotopes is not used as a diagnostic tracer?

Correct AnswerverifiedShow Answer

Consider the figure below.Which form of emitted radiation would follow the path shown by the arrow labeled 1?

Correct AnswerverifiedShow Answer

A common use of radioisotopes is to speed up chemical reactions.

Correct AnswerverifiedShow Answer

Which of the following is not a nuclear reaction?

Correct AnswerverifiedShow Answer

The term "nuclear energy" is most closely associated with which one of the following processes?

Correct AnswerverifiedShow Answer

What is the nature of the reactions that occur in a star?

Correct AnswerverifiedShow Answer

There are some elements within the periodic table that do not occur in nature.One of the man-made elements is _____ .

Correct AnswerverifiedShow Answer

Carbon-14 is only effective in dating an object up to approximately 10 half-lives.The reason is that the speed with which C-14 decays increases after 10 half-lives.

Correct AnswerverifiedShow Answer

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