Residential HVAC Installation Practice Exam

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Prepare for your Residential HVAC Installation test with our engaging quizzes and in-depth multiple-choice questions. Each question comes with hints and detailed explanations to ensure mastery of the subject matter. Get ready for your exam and boost your confidence!

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What does moisture present in a refrigeration system react with to form acid?

Compressor oil
Refrigerant
Evaporator coil
Condenser fan

The correct answer is: Refrigerant

Moisture present in a refrigeration system can react with the refrigerant to form acid. This is because refrigerants are typically made of chemicals such as hydrochlorofluorocarbons (HCFCs) or hydrofluorocarbons (HFCs) which contain hydrogen and chlorine or fluorine atoms. When moisture comes into contact with these atoms, it can cause a chemical reaction that results in the formation of acid. It is important to keep moisture out of refrigeration systems to prevent this from happening and damaging the system. Option A Compressor oil is used in refrigeration systems to lubricate moving parts and prevent wear and tear. It does not react with moisture to form acid. Option C: The evaporator coil is where the refrigerant absorbs heat and turns into a vapor. It does not typically come into contact with moisture unless there is a leak in the system. Option D: The condenser fan helps to cool down the hot refrigerant vapor to turn it back into a liquid. It does not react with moisture to form acid.