ACR-104 Unit 21

The process of removing heat from a place where it is not wanted and transferring that heat to a place where it makes little or no difference is known as ____.

• refrigeration
• cooling
• defrosting
• temperature balancing

The household refrigerator fresh-food compartment is a good example of ____ refrigeration.

• medium-temperature
• low-temperature
• high-temperature
• average-temperature

The household refrigerator fresh-food compartment typically ranges from ____.

• 28 to 40°F
• 25 to 35°F
• 30 to 42°F
• 32 to 45°F

Low-temperature food storage applications generally start at ____.

• 0°F
• -20°F
• 32°F
• 40°F

High-temperature refrigeration applications will normally provide box temperatures of ____.

• 47 to 60°F
• 32 to 50°F
• 20 to 40°F
• 50 to 67°F

A refrigeration system designed for the storage of flowers or candy is considered a ____ type.

• high temperature
• medium temperature
• low temperature
• sharp freezing

The ____ in a refrigeration system is responsible for absorbing heat into the system from whatever medium is to be cooled.

• evaporator
• thermostat
• compressor
• condenser

The boiling temperature and its relationship to the system exist in the ____.

• evaporator
• coil
• compressor
• condenser

A typical evaporator operating temperature in an air-conditioning system is ____.

• 40°F
• 55°F
• 75°F
• 200°F

The ____ of the liquid refrigerant determines the coil operating temperature.

• boiling temperature
• freezing point
• melting point
• transition temperature