HVAC drill: Refrigeration cycle

10 questions · Untimed · Every option explained

The refrigeration cycle, superheat and subcooling, split and packaged systems, heat pumps, maintenance and troubleshooting. Ten questions from our refrigeration cycle bank, with an explanation for every option.

Line drawing of an outdoor condensing unit and an indoor evaporator coil joined by a large insulated suction line and a smaller liquid line, with the compressor shown inside the outdoor unit

Before you start

Every question has four options and one best answer.
Check each answer to see why every option is right or wrong before moving on. Checked answers cannot be changed.

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