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: Your unit is in an area of overlapping radiation, which requires the use of a nonstandard

decay rate to determine the amount of fallout radiation.

1.

A unit must enter a fallout area at H + 32 hours to recover abandoned equipment. The task will

require approximately 2 hours and the dose rate at time of entry is 4 cGyph. What total dose of

radiation **(cGy) **can unprotected personnel expect to receive?

A.

Less than 4

B.

4

C.

8

D.

More than 8

2.

Which is the standard decay exponent?

A.

0.8

B.

1.2

C.

1.4

D.

2.0

3.

As a rule, reliable dose calculations can be made over a period of how many times longer than

the interval between the first and last dose rate reading?

A.

1

B.

2

C.

3

D.

4

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