Module 7 Copper Pipe and Fittings

The process of joining tubes and fittings by heating the materials and melting a filler metal into the

joint to seal the tubes together is called _____.

• brazing

• grooving

• soldering

• rolling

A 1-inch nominal type L copper tube has an outside diameter of _____.

• 1-1/4"

• 1-1/8"

• 7/8"

• 1"

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

• ACR

• DWV

• M

• K

The information printed on the outside of copper tubing does not include the _____.

• joining method

• country of origin

• manufacturer name

• tube type

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 _____.

• gate valve

• globe valve

• ball valve

• check valve

Push-fit connections that use stainless steel teeth and a compressible O-ring seal to connect copper

tube are called _____.

• ProPress

• Big Hawg®

• SnapOn®

• SharkBite®

Mechanically formed tee connections increase productivity because they require the creation of only _____.

• two brazed joints

• three soldered joints

• one brazed joint

• one soldered joint

To reduce turbulence, the space between the fittings of a 2-inch diameter tube should be at least _____.

• 40"

• 30"

• 10"

• 20"

When measuring copper tubing using the end-to-back method, the tube length is equal to the measurement _____.

• minus the distance from the face to the back of one sweated-on fitting

• minus the end-to-back dimension of the fitting

• plus the length of the sweated-on fitting

• plus twice the insertion length

When measuring copper tubing using the end-to-back method, the tube length is equal to the measurement _____.

• minus the distance from the face to the back of one sweated-on fitting

• minus the end-to-back dimension of the fitting

• plus the length of the sweated-on fitting

• plus twice the insertion length