← All exams

Fundamentals

HVAC Journeyman
Get ready for what’s next.

Refrigeration cycles, airflow, controls, and system diagnostics.

20seed questions
90 minpractice mock limit
70%practice benchmark

Practice settings are not official exam specifications. Verify your jurisdiction’s bulletin, code edition, and allowed reference materials.

KNOW THE TERRITORY

What you’ll practice.

Refrigeration40%
Airflow30%
Controls30%

Target topic weights for CodeReady mock exams, not an official exam blueprint.

TAKE IT FOR A TEST DRIVE

Three questions. No sign-up.

01 / Refrigeration

In a basic vapor-compression cooling cycle, where does refrigerant absorb heat from the conditioned space?

  1. The compressor motor shell only
  2. The liquid receiver only
  3. The evaporator
  4. The condenser
Show answer & explanation

The evaporator

Low-pressure refrigerant evaporates while absorbing heat in the evaporator. The condenser rejects that heat plus compressor work.

ASHRAE Handbook—Fundamentals, refrigeration cycles

02 / Refrigeration

What is the compressor's primary thermodynamic function in a refrigeration cycle?

  1. Condense all refrigerant into liquid at its inlet
  2. Raise refrigerant vapor pressure and enable circulation
  3. Remove moisture using desiccant
  4. Meter liquid into the evaporator
Show answer & explanation

Raise refrigerant vapor pressure and enable circulation

The compressor raises vapor pressure so heat can be rejected at a higher condensing temperature. It is not the metering device.

ASHRAE Handbook—Fundamentals, refrigeration cycles

03 / Refrigeration

What does superheat describe at a measured refrigerant pressure?

  1. Difference between indoor and outdoor dry-bulb temperature
  2. Liquid temperature below saturation
  3. Vapor temperature above the saturation temperature at that pressure
  4. Compressor current divided by voltage
Show answer & explanation

Vapor temperature above the saturation temperature at that pressure

Superheat is measured vapor temperature minus saturation temperature for the same pressure. Correct refrigerant data and measurement location matter.

ASHRAE Handbook—Fundamentals, thermodynamics