ACR 203 Midterm

What are the four factors of comfort?

• Temperature, Humidity, Air movement, Air cleanliness

• Temperature, Humidity, Air movement, Rain

• Temperature, Humidity, Cold air, Wet air

• Humidity, Air, Hot air, Dry air

What is the term used to describe the amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature?

• Temperature

• Humidity

• Air movement

• Air cleanliness

What are the four major components of refrigeration cycle?

• evaporator,

  compressor,

  condenser,

  metering device

• metering device, rotary pump, air handler, filter

• filter dryer, evaporator, drain line, bypass valve

• check valve, bypass valve, compressor

Which component of the refrigeration cycle is responsible for removing heat from the refrigerated space?

• Metering Device

• Compressor

• Condenser

• Evaporator

What is the primary function of a compressor in a refrigeration system?

• To remove heat from the refrigerated space

• To decrease the temperature of the refrigerant

• To increase the pressure of the refrigerant

• To control the flow of refrigerant

What is the purpose of a condenser in a refrigeration system?

• To remove heat from the refrigerant and release it to the surrounding environment

• To absorb heat from the refrigerated space

• To control the flow of refrigerant

• To increase the pressure of the refrigerant

What type of metering device is the TXV

• rigid

• variable

• fixed-bore metering device

• metering

What is the role of a metering device in a refrigeration system?

• To control the flow of refrigerant

• To absorb heat from the refrigerated space

• To remove heat from the refrigerant and release it to the surrounding environment

• To increase the pressure of the refrigerant

What is a higher-efficiency refrigerant blend that can be used as long-term replacements for R-22 in residential and light-commercial air-conditioning applications?

• R-410A

• R-12

• HCF

• HFC

What is the term used to describe the process of changing a liquid refrigerant into a vapor by absorbing heat?

• Expansion

• Condensation

• Compression

• Evaporator