Unit 21 review

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 ____.

• cooling

• refrigeration

• defrosting

• temperature balancing

Tags

NGSS.MS-PS3-3

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

• low-temperature

• medium-temperature

• high-temperature

• average-temperature

Tags

NGSS.MS-PS3-4

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

• 25 to 35°F

• 28 to 40°F

• 30 to 42°F

• 32 to 45°F

Tags

NGSS.MS-PS3-3

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

• high temperature

• medium temperature

• low temperature

• sharp freezing

Tags

NGSS.MS-PS3-3

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

• compressor

• condenser

• evaporator

• expansion valve

Tags

NGSS.MS-PS1-4

• coil

• thermostat

• condenser

• evaporator

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

• 40°F

• 55°F

• 75°F

• 200°F

Tags

NGSS.MS-PS3-4

• freezing point

• melting point

• transition temperature

• boiling temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

• flooded evaporator

• dry-type evaporator

Tags

NGSS.HS-PS3-4

____ is the best method of checking to see when a refrigerant coil has a proper level of refrigerant.

• Boiling temperature

• Superheat

• Dryheat

• Vapor temperature