Plumbing

True/False. Plumbing scope of work will typically include gas piping.

• True

• False

True/False. Water has to be chemically treated before human consumption, even if it is pulled from a well.

• True

• False

Water that is safe for humans to drink or use for consumption is known as...

(a)  

Water that is not safe for human consumption is termed as...

• Sanitary

• Gray water

• Non-potable

• Potable

What do plumbing drains require in order to not take a suction on the line?

• Check valves

• P-traps

• Venting

• Low slope

What slope do plumbing codes specify for horizontal drains?

• 2" per foot

• 1/8" - 1/2" per foot

• 1/2 foot per foot

• 1/8 foot per foot

True/False. In commercial construction, roof drains are part of the Plumbing scope of work.

• True

• False

True/False. When soldering copper pipe, the solder can contain small amounts of lead.

• True

• False

Choose all the types of piping used for potable water.

• Clay tile pipe

• Copper

• Cast iron

• Plastic

• Steel

Choose the material used for D, W, V piping in commercial buildings

• Clay

• Cast iron

• Steel

• Plastic

• Concrete