C20 HVAC Quiz

Welcome to your free C-20 HVAC Quiz

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1. 
How are residential furnace blower motors classified?

2. 
What is the first thing you should do before removing a contactor?

3. 
A junction box used for joining wires may be made of__________.

4. 
What is the purpose of a heat anticipator in a furnace?

5. 
A cable contains a black wire, a white wire, and a smaller, uncoated copper wire. What should you do with the uncoated copper wire?

6. 
When hooking up two fans in parallel, where should the thermostatic bulb be placed?

7. 
What makes the best insulator?

8. 
What does SEER stand for?

9. 
How are fuses rated?

10. 
Using an oversized fuse will affect the circuit by__________.