Copper pipe

1. Compared to other types of pipeing, copper tube and fittings are genarally _______.

• less expensive.

• more expensive.

• difficult to install.

• easy to install.

2.Tubes that are measured in nominal or standard sizing have an OD that is

• 1/8" larger than the nominal size

• 1/4" larger than the nominal size

• 1/2" larger than the nominal size

• 1" larger than the nominal size

3.Types K,L,M and DWV copper tubing are measured using

• ID sizing

• OD sizing

• Nominal sizing

• Copper tube sizing

4.Type K copper tube is marked with the color code

• Orange

• Blue

• Yellow

• Green

5.The valve most often used for draining and freeze protection above ground is the

• Ball valve

• Compression,stop,and waste valve

• Globe valve

• Gate valve

6.The Type of valve also known as a ground-key is the

• Stop valve

• globe valve

• check valve

• ball valve

7.In order to prevent turbulence when more than one tee is installed in a line,a 3" tube should have a minimum of

• 3"of tube between tees

• 6" of tube between tees

• 18" of tube between tees

• 30" of tube between tees

8.If tee fitting are not properly installed,they can cause a condition known as

• Bullheading

• Ferrulization

• Sweating

• Spouting

9.To measure tube that has a fitting on one end only,use a

• Center-to face measurement

• face-to-back measurement

• End-to-face measurement

• Center-to center measurement

10.The preferred tool for cutting tubing is a

• Chop saw

• hacksaw

• Midget cutter

• Handheld tube center