FAA AMT Airframe Practice Exam 2026 – Complete Exam Prep Guide

In a vapor cycle cooling system, the receiver dryer serves as a reservoir for the refrigerant. Its main function is to store excess liquid refrigerant and to remove any moisture and contaminants from the system. This helps ensure the proper functioning and longevity of the components in the system.

Regarding the other options:

- The evaporator is responsible for absorbing heat from the aircraft cabin air.

- The condenser is responsible for releasing the absorbed heat to the outside air.

- The compressor is responsible for compressing the low-pressure refrigerant vapor into high-pressure vapor.