Copper Pipe

Compared to other types of piping material, a disadvantage of copper piping is that it is _________________.

• expensive

• inflexible

• susceptible to corrosion

• difficult to transport

A 1-inch nominal type L copper tube has an outside diameter of ____________ inch(es).

• 7/8

• 1

• 1 1/8

• 1 1/4

A 3/4-inch copper tube has an outside diameter of 3/4 inch. The pipe is most likely type __________.

• K

• M

• ACR

• DWV

The manufacturer prints all of the following information on the outside of copper tubing except ______________.

• tube type

• joining method

• manufacturer name

• country of origin

All types of fittings are designed to _______________.

• change the direction of the pipe run

• change the size of a pipe run

• slow down the flow of materials in the pipe

• join different sections of pipe together

A _________ is a water supply fitting used to close the end of a copper pipe.

• sweat cap

• sweat union

• sweat flange

• sweat-to-compression adapter

To reduce turbulence and prevent hammering in the line, a 2-inch diameter pipe should have a minimum of __________ inches between the fittings.

• 10

• 20

• 30

• 40

A plumber is installing a valve on a water supply line that will frequently remain completely open. The best type of valve to install is a _____________ valve.

• check

• ball

• gate

• globe

When joining a branch line to a section of copper pipe, you should create ___________ joints.

• one brazed

• one soldered

• two brazed

• three soldered

In figure 1 (drawn on the board), the line between Points A and B indicates a __________________ measurement.

• end-to-face

• center-to-end

• face-to-back

• center-to-face