Industry Competency Exam ICE Commercial

Industry Competency Exam (ICE) Commercial Refrigeration Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary purpose of a commercial refrigeration system?
• To heat air in a building
• To remove heat from a space or product
• To humidify the air
• To produce electricity
• To remove heat from a space or product

Rationale: Commercial refrigeration systems are designed to remove heat

from a designated area or product to maintain desired temperatures.

• Which component in a refrigeration system compresses the

refrigerant vapor?

• Condenser
• Evaporator
• Compressor
• Expansion valve 1 / 4

• Compressor

Rationale: The compressor increases the pressure and temperature of the

refrigerant vapor to enable heat rejection in the condenser.

• The device that reduces the pressure of the refrigerant before it

enters the evaporator is called:

• Compressor
• Condenser
• Expansion valve
• Receiver
• Expansion valve

Rationale: The expansion valve reduces refrigerant pressure, allowing it to

evaporate and absorb heat in the evaporator.

• In a vapor-compression refrigeration cycle, where does the refrigerant

reject heat to the environment?

• Evaporator
• Compressor
• Condenser
• Expansion valve
• Condenser

Rationale: The condenser removes heat from the refrigerant, usually

transferring it to air or water. 2 / 4

5. Superheat is defined as:

• Temperature of refrigerant below its boiling point
• Temperature of refrigerant above its boiling point
• Pressure of refrigerant in the condenser
• Pressure drop across the expansion valve
• Temperature of refrigerant above its boiling point

Rationale: Superheat is the amount by which the vapor temperature

exceeds its saturation temperature at a given pressure.

6. Subcooling refers to:

• Refrigerant temperature below its condensation point
• Refrigerant temperature above its condensation point
• Pressure in the evaporator
• Pressure in the compressor
• Refrigerant temperature below its condensation point

Rationale: Subcooling ensures liquid refrigerant enters the expansion valve

to prevent flash gas formation.

• Which type of refrigerant is commonly used in commercial

refrigeration systems?

A. R-22

• R-134a

C. R-404A

D. R-410A 3 / 4

C. R-404A

Rationale: R-404A is a widely used HFC refrigerant for low- and medium-

temperature commercial refrigeration applications.

• What is the main function of the evaporator in a commercial

refrigeration system?

• Condense refrigerant
• Absorb heat from the refrigerated space
• Compress refrigerant
• Meter refrigerant flow
• Absorb heat from the refrigerated space

Rationale: The evaporator absorbs heat from the air or product to produce

cooling.

• In a flooded evaporator system, what component is used to pump

liquid refrigerant through the evaporator?

• Compressor
• Expansion valve
• Circulating pump
• Condenser fan
• Circulating pump

Rationale: Flooded evaporators require a pump to circulate liquid

refrigerant through the heat exchanger.

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