ESCO Air Conditioning Practice Exam 2026 – Complete Study Resource

Question: 1 / 400

What are the four main components of a basic air conditioning system?

Compressor, condenser, reservoir, and evaporator

Compressor, condenser, expansion valve, and evaporator

The four main components of a basic air conditioning system are indeed the compressor, condenser, expansion valve, and evaporator.

The compressor plays a crucial role as it compresses the refrigerant and increases its pressure, preparing it for circulation through the system. The condenser then cools the high-pressure refrigerant, allowing it to release heat and transform back into a liquid state. After this, the expansion valve regulates the flow of refrigerant into the evaporator, where it absorbs heat from the indoor air, causing the refrigerant to evaporate and cool the air in the process. This cycle is essential for providing a cooling effect in an air conditioning system.

Understanding these components highlights how they work in conjunction to facilitate heat exchange, which is the fundamental principle behind air conditioning systems. Each component has a specific function that is vital to the overall operation of the system.

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Evaporator, thermostat, expansion valve, and compressor

Compressor, fan, heat exchanger, and evaporator

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