Refrigeration Systems Certification Exam Newest
2026 Questions and Correct Detailed Answers
Already Graded A+
What protects compressors from damage in a suction line? - CORRECT ANSWER-
Accumulators allow only vapor refrigerant to flow.
What is a refrigerant like a dry sponge? - CORRECT ANSWER-Low-pressure vapor.
What is a refrigerant like a soaking wet sponge? - CORRECT ANSWER-High-
pressure liquid.
What is the low side of the system? - CORRECT ANSWER-From the metering
device through the evaporator to the compressor.
What is the high side of the system? - CORRECT ANSWER-From the compressor
exhaust through the condenser and liquid line to the metering device.
What pressure does a compressor create in the evaporator? - CORRECT ANSWER-
Low pressure.
, What does a compressor increase in refrigerant? - CORRECT ANSWER-Pressure
and heat content.
What is accomplished in refrigeration systems? - CORRECT ANSWER-Heat transfer
by refrigerant changing phase between vapor and liquid.
What happens as a refrigerant evaporates? - CORRECT ANSWER-It absorbs heat.
What happens as refrigerant condenses? - CORRECT ANSWER-It expels heat.
In which direction does heat flow? - CORRECT ANSWER-From hot to less hot.
What are the four processes of a compression refrigeration system? - CORRECT
ANSWER-Compressing, condensing, metering, and evaporating.
What drives the refrigeration process in a compression refrigeration system? -
CORRECT ANSWER-Mechanical energy.
What does a compressor do? - CORRECT ANSWER-Raises the pressure and heat
content of a refrigerant.
2026 Questions and Correct Detailed Answers
Already Graded A+
What protects compressors from damage in a suction line? - CORRECT ANSWER-
Accumulators allow only vapor refrigerant to flow.
What is a refrigerant like a dry sponge? - CORRECT ANSWER-Low-pressure vapor.
What is a refrigerant like a soaking wet sponge? - CORRECT ANSWER-High-
pressure liquid.
What is the low side of the system? - CORRECT ANSWER-From the metering
device through the evaporator to the compressor.
What is the high side of the system? - CORRECT ANSWER-From the compressor
exhaust through the condenser and liquid line to the metering device.
What pressure does a compressor create in the evaporator? - CORRECT ANSWER-
Low pressure.
, What does a compressor increase in refrigerant? - CORRECT ANSWER-Pressure
and heat content.
What is accomplished in refrigeration systems? - CORRECT ANSWER-Heat transfer
by refrigerant changing phase between vapor and liquid.
What happens as a refrigerant evaporates? - CORRECT ANSWER-It absorbs heat.
What happens as refrigerant condenses? - CORRECT ANSWER-It expels heat.
In which direction does heat flow? - CORRECT ANSWER-From hot to less hot.
What are the four processes of a compression refrigeration system? - CORRECT
ANSWER-Compressing, condensing, metering, and evaporating.
What drives the refrigeration process in a compression refrigeration system? -
CORRECT ANSWER-Mechanical energy.
What does a compressor do? - CORRECT ANSWER-Raises the pressure and heat
content of a refrigerant.
