1.-
a) In the standard plumbing code, the lavatory is assigned a value of _______Fixture Units.

b) What is a cleanout for?

c) Water closets are designed so a certain trapping function takes place when they are operated. Can you describe this function?

d) What happens if a trap is not installed level in relation to its water seal ?

e) No wet or dry vent serving a W.C. can be less than ______ inches in diameter.

2.- An office building in a remote location has a water supply system served by a pump and a well. The peak demand is 60 gpm. The fixtures will operate at a minimum of 40 psi
A maximum of 80 psi should not be exceeded. Find the necessary tank volume in gallons.

3.- Size the pipes in the drainage system shown.

4.- Size the cold water pipes in the shown residence