EXERCISES: LESSON 2
INSTRUCTIONS: Answer the following exercises by marking the lettered response that
best answers the exercise, by completing the statement, or by writing the answer in the
space provided at the end of the exercise.
After you have completed all the exercises turn to "Solutions to Exercises" at the
end of the lesson and check your answers. For each exercise answered incorrectly,
reread the material referenced with the solution.
1.
Which purification process is always included in military water treatment?
a. Filtration.
b. Coagulation.
c.
Disinfection.
d. Sedimentation.
2.
What are disinfection requirements for treated water?
a. There should be no residual action.
b. It must destroy just about all microorganisms.
c.
It must be nontoxic to humans when ready to drink.
d. All good particles should be free of the disinfectant.
3.
Which two substances are powerful oxidizing substances that kill
bacteria?
_____________________________ and _______________________________.
MD0160
2-24