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1. Two purposes of storage tanks are to provide __________ and pressure.
   
   a. Clean water b. Velocity c. Volume d. Demand
    

2. __________ water tanks are commonly used in producing pressure in a water system.
   
   a. Underground b. Galvanized c. Elevated d. Potable
    

3. A common type of pressure tank used in very small systems is called__________.
   
   a. A convenction tank b. A hydropneumatic tank c. Rapid mixing tank d. A break tank
    

4. The force exerted by the weight of the water stored in an elevated water tank is expressed in _______.
   
   a. Parts per million b. Milligrams per liter c. Feet per second d. Pounds per square inch
    

5. The volume of an elevated water tank should equal _______ usage of the water system.
   
   a. 12 hours b. 2 days c. 5 days d. 24 hours
    

6. Which is not a typical method of storing water?
   
   a. Ground storage tanks b. Sedimentation tanks c. Elevated storage tanks d. Hydropneumatic tanks
    

7. A ground storage tank can become an elevated storage tank by placing it on a _______.
   
   a. Lake b. Valley c. Park D. Hill
   
   
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