National Plumbing Code - Pipe & Fittings

Where can T Fittings be used?

• In a Drainage System

• In a Venting System

• In both a Drainage or Venting System

• None of the above

Where can a Cross Fitting be Used?

• In a Drainage System

• In a Venting System

• In both Drainage and Venting Systems

• None of the above

Where can a Sanitary Tee (TY) fitting be used?

• In a nominally horizontal position

• In a nominally horizontal position unless used for a vent

• In a nominally vertical position

• none of the above

Where can a double Sanitary T fitting be used?

• In a nominally horizontal position

• For connecting back outlet water closets installed back to back

• For connecting 2 urinals where a cleanout fitting is provided above the connection

• In a nominally vertical position connecting branches, or vent pipes.

When can a short radius (regular) 90 degree elbow less than 4 inch in size be used to connect 2 soil-or-waste pipes?

• to change the direction of piping from horizontal to vertical in the direction of flow

• where a trap arm enters the wall

• connect a trap arm to a water closet

• all of the above

When shall a long radius 90 degree elbow be used?

• To join 2 soil-or-waste pipes

• To change the direction of piping from vertical to horizontal, in the direction of flow

• To change the direction of piping from horizontal to horizontal, in the direction of flow

• All of the above

Wye fittings are allowed to be used to connect to a trap arm?

• True

• False

Where can Wye Fittings be used?

• Anywhere in a drainage system, except for trap arms

• Anywhere in a venting system

• All of the above

• None of the above

What does every length of pipe and fitting must have cased, stamped or indelibly marked on it?

• Maker's Name or Mark

• Weight, Class or Quality of the product

• All of the above

• None of the above

What is the minimum Trap Seal Depth?

• 18 mm

• 28 mm

• 38 mm

• 48 mm

• 50 mm