copper pipe

what is the percentage of copper in tubing used by the construction industry

• 100%

• 50%

• 99.9%

• 100%

advantage of of using copper pipe

• easy to install

• impervious to rust

• about quarter weight of steel

• all of the above

which is not a way of joining copper pipe

• compression fittings

• flared fittings

• soldered

• welded

to prevent oxidation and help the flow of solder through the joint you must

• pre heat the pipe

• ream the pipe

• apply flux

• hit it with a hammer

two types of copper tube suitable for bending

• K and M

• M and L

• K and L

• K and DWV

disadvantage of copper tube compared to steel or plastic pipe

• high cost

• greater expansion per linear foor

• noise through piping

• all of the above

state the standard lengths of soft copper tube

• 16-20 feet

• 12-21 feet

• 60-66 feet

• 100 feet

what are the uses for soft tempered coppr tube

• remodeling

• renovations

• underground services

• all of the above

state tue use for DWV copper

• air lines

• drainage

• hot and cold water

• potable water

what color copper pipe is DWV

• red

• blue

• yellow

• green