Title: Unit 8 Quiz
Course: REEC 220 Solar Thermal Systems > Section: REEC 220 Solar Thermal Systems

Q: Which letter of copper sticks are often used for residential systems?
- M
- L
- K
A: L

Q: Which letter of copper is used for the solar loops in a solar thermal system?
- M
- L
- K
A: M

Q: What color is “L” type copper sticks marked with?
- Red
- Green
- Blue
A: Blue

Q: What is the outer diameter of ¾ inch copper?
- 7/8 inch
- 3/4 inch
- 5/8 inch
A: 7/8 inch

Q: Lead solder is ok to use in potable water systems.
- True
- False
A: False

Q: ____________ is the method of using hotter temperatures to connect pipes.
- Soldering
- Brazing
- Welding
A: Brazing

Q: Schedule 40 is larger than schedule 80 pipe.
- True
- False
A: False

Q: Galvanized pipe is ok to use as fitting and connectors.
- True
- False
A: False

Q: PEX-A is the only type of PEX tubing that can be used in the solar collector loop.
- True
- False
A: False

Q: What should flow velocities in a solar thermal system be between?
- .5 to 1 fps
- 1 to 2 fps
- 2 to 3 fps
A: 2 to 3 fps