1. Q: What is this?
A: ____________________________________.
2. Q: What is it used for?
A: ____________________________________.
3. Q: What happens if you turn it clockwise?
A: ____________________________________.
4. Q: What happens if you turn it counter-clockwise?
A: ____________________________________.
5. Q: Who do you call if you need to have this installed or fixed?
A: ____________________________________.
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