plu Flashcards
1
Q
Which type of copper pipe has the thickest wall?
A
Type K (good for buried), Type L is medium thickness (for supply lines), Type M (thinnest and best to take away condensation from an evaporator coil)
2
Q
What type of copper pipe would be best for a stack vent?
A
Type DWV
3
Q
What is the modern equivalent to a gate valve?
A
A ball valve, think water shut-off
4
Q
How do higher end buildings maintain instantaneous hot water.
A
Circulating hot water loop
5
Q
Name three sources of greywater
A
Lavatories, Washing Machines, and Showers (not Kitchen Sinks)
6
Q
why do we insulate pipes?
A
to keep heat in and avoid condensation on cold pipes
