1.- Mention 3 uses of water.
 
 

2.- What are the physical characteristics of water?
 
 

3.- What are the chemical characteristics of water?
 
 

4.- What is water treatment?
 
 

5.- List 5 methods of water treatment.
 
 

6.- What are storage tanks for?
 
 

7.- What does PH measure?
 
 

8.- List 3 toxic substances that could be found in water?
 
 

9.- What is the condition for a body to float on the water surface?
 
 

10.- An office building in a remote location has a water supply system served by a pump and well.  The peak demand is 40 gpm.  The fixtures will operate at a minimum of 30 psi.  A maximum of 60 psi should not be exceeded.  Find the necessary tank volume in gallons.
 
 

11.- Mention three aspects that a plot plan shows.
 
 

12.- What is a vent stack for?
 
 

13.- The code divides every plumbing system into three basic parts which are: