Font size
WorksheetsBasic copper and plastic pipe practices
Total questions: 27
Worksheet time: 14mins
When using a handheld tubing cutter you must make sure the end is
Deburred
Near
Compressed
Hardened
What type of fitting is not generally used for refrigerant?
Compression Fitting
Flared fitting
Press to connect
Sweat fitting
What kind of fittings are used to connect various components
Compression fittings
Press to connect
Push to connect
90 degree
What is true about press to connect fitting assembly? Select all that apply
Make sur tubing does not have nicks and gouges
Use a depth gauge to mark tubing insertion depth
Ensure the fitting is deburred
All of the abovw
What degree is the face of a flare fitting?
35
45
60
90
What type of clamp is used when a pipe travels from one floor to another?
Riser clamp
Clevis hanger
Split ring
Flange clamp
What mark is used to show the depth of a fitting on a pipe?
Witness mark
Center mark
End to end mark
Face to face mark
What determines the type of pipe used on a job?
This is often controlled by building codes
Hvac technician
Contractor
General contractor
What type of copper tubing does not require markings?
ACR
Type L
Type M
Type K
What type of pipe is measured the same as steel pipe?
PVC
CPVC
Type M copper
ACR copper
Which type of copper has the thinnest wall?
Type M
Type L
Type K
ACR
Which type of copper is the same as ACR?
Type L
Type M
Type K
Type J
Which charicteristic of copper tubing is fabricated by drawing or pulling the cooper tubing through a series of dies to decrease the size and make it more rigid?
Hard-drawn
Malleable
soft
Type M
What type of pipe is most commonly used in radiant flooring?
Pex
PVC
CPVC
Copper
Once a ferrule has been compressed, How many times can it be reused?
none
1
2
several times
What gives evidence that a pvc pipe has been properly fitted?
Seeing the primer
It has been signed
It has not yet been deburred
Seeing the clear cleaner
Which 2 types of copper is identified by its O.D. instead of I.D.?
Type L
ACR
Type K
Type M
Why should you not use a coarse saw blade to cut copper tubing? Select all that apply.
It can snag at the middle of the pipe
Filings can fall into the pipe out of reach
It cuts too fast
It cuts too slow
How do you remove a ferrule from the copper tubing?
Use a ferrule remover
It slides right off
It must be cut off
Simply unscrew the fitting
On a compression fitting, How many turns after finger tight ensures a leak free joint?
1
2
3
4
For pressure testing refrigerant lines, besides nitrogen what other gas can be used?
Oxygen
Acetylene
Carbon Dioxide (CO2)
Helium
How can you tell if a scratch is too deep on copper that would create a leak when using push to connect fittings?
If it can be felt with a fingernail
If it is visible
if it is only inside the fitting
If it is only outside of the fitting
What is it called when you insert a tool into copper tubing to expand it?
Swaging
Annealing
Shaping
Bending
How many times can push to connect fittings be reused?
0
1
2
Multiple
How do you remove a push to connect fitting?
Use a release tool
Unthread it
Remove by cutting the pipe
It cannot be removed
Which type of fitting can be taken apart and put back together several times?
Flare
Compression
Sweat
Push to connect
When should you not deburr?
When you cannot remove the filings
When you are short on time
When you use a hacksaw
When you don't have the tool with youy
