1. When heat is carried from one object to another by means of a moving liquid or gas, it is being transferred by _____.

2. The construction and labeling of refrigerant containers is governed by _____.

3. In a semi-hermetic compressor, _____.

4. To close a control circuit and start a system, a remote-bulb thermostat depends on a _____.

5. Which type of compressor is typically used only in systems needing 100 tons of capacity or more?

6. When the pressure on a liquid in a closed space is increased, what happens to the boiling point?

7. One of the advantages of a fixed metering device is _____.

8. In a refrigeration system, the high-pressure, high-temperature vapor is converted into a high pressure, high-temperature liquid by the _____.

9. A ton of refrigeration is equal to _____.

10. Which of the following statements about ammonia is true?