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
Situation: You must be able to advise the commander about the optimum time of exit from a fallout
area. This information is vital to the safety of the personnel assigned to the mission.
When should personnel exit from the fallout area, if the optimum time of exit is computed to be
before the actual arrival of fallout.
Wait until the dose rate decreases by one-half.
As soon as possible after fallout is complete and an uncontaminated area is available
Anytime after the arrival of fallout as long as an uncontaminated area is available
When may personnel leave their shelters once the optimum time of exit has been determined, if
the commander is willing to accept up to 10% increase in dose above the minimum possible
1/3 to 3 times the optimum time
1/2 to twice the optimum time
Optimum to twice the optimum time
1 1/2 times the optimum time
To answer question 3, refer to Figure S-1 in the Supplemental Booklet.
Personnel will be evacuated from a fallout area in M-60 tanks, APCs (M113), 2 1/2-ton trucks
and 1/4-ton trucks. What is the average transmission factor for evacuation?