LESSON 4
PRACTICE EXERCISE
The following items will test your grasp of the material covered in this lesson. There is only one correct
answer for each item. When you complete the exercise, check your answer with the answer key that
follows. If you answer any item incorrectly, study again that part of the lesson which contains the
portion involved.
Situation: During your assigned mission, you will be required to remain in the fallout area for an
extended period of time. You must be prepared to do this without undue exposure to radiation.
1.
Which method regulates the time of stay in a fallout area?
A.
Extending the mission in the area
B.
Using fewer personnel in the area
C.
Slowing rate of march across the area
D.
Selecting a shorter route across the area
2.
Which is required to determine the time of stay in a fallout area using the total dose (fallout)
nomogram?
A.
The total dose which personnel can receive
B.
The radiation decay exponent
C.
The correlation factor
D.
The transmission factor
NOTE:
To answer question 3, refer to Figure S-3 in the Supplemental Booklet.
3.
Personnel must enter a fallout area at H + 3 hours when the H + 1 dose rate is 100 cGyph. How
many hours can the personnel remain in the area without exposed personnel receiving more than
30 cGy of radiation?
A.
0.5
B.
1.0
C.
1.5
D.
2.0
4-7
CM2308
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