Understanding Automotive AC Systems

Which component in an automotive AC system is responsible for compressing the refrigerant?

• Condenser

• Evaporator

• Compressor

• Expansion valve

What is the primary function of the evaporator in an AC system?

• To compress the refrigerant

• To cool the air by absorbing heat

• To release heat to the outside

• To regulate refrigerant flow

Which of the following is a significant environmental concern associated with R-134a?

• Ozone depletion

• Global warming potential

• Acid rain

• Water pollution

What is the typical pressure range for R-134a in the high-pressure side of an automotive AC system?

• 10-20 psi

• 30-40 psi

• 150-250 psi

• 300-400 psi

Which component in the AC system is responsible for removing moisture and contaminants from the refrigerant?

• Compressor

• Condenser

• Receiver-drier

• Evaporator

What is the role of the expansion valve in an automotive AC system?

• To increase refrigerant pressure

• To decrease refrigerant pressure

• To circulate refrigerant

• To filter refrigerant

Which of the following best describes the phase change of R-134a in the evaporator?

• Liquid to gas

• Gas to liquid

• Solid to liquid

• Liquid to solid

• 1

• 1430

• 100

• 500

Which of the following is NOT a component of an automotive AC system?

• Compressor

• Radiator

• Condenser

• Evaporator