A ______________ has a built in trap.

The _____________, also called the fixture drain, is the point where wastewater leaves the trap and goes into the drainage piping.

For a trap to operate properly, the crown weir must be installed ____________ than the ____________ of where the fixture drain enters the vent line.

A homeowner is experiencing a problem with a water closet whose trap seal keeps failing. The water closet is in a powder room that is seldom used. The problem is most likely due to ________________.

A 1/6 elbow fitting will turn a run of pipe by _____________ degrees.

________________ bends are not available for cast-iron pipe.

_______________ are used to join pipes made of different materials.

A sanitary combination is a single fitting that combines _______________.

Combination fittings are used _______________.

The main horizontal pipe inside a building is called the _______________.

Plumbing codes require that manholes be provided for underground piping except when the piping _______________.