FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Question: 1 / 1030

Is the statement 'Water in a vapor cycle cooling system will react with refrigerant to form hydrochloric acid, which is highly corrosive to the metal in the system' true or false?

True

Water in a vapor cycle cooling system can indeed react with refrigerant to form hydrochloric acid, which is highly corrosive to the metal in the system. This is because water can act as both an acid and a base, and it can react with the chlorine in the refrigerant to form the acidic compound. This reaction can occur regardless of the presence of oxygen or temperature, so options C and D are incorrect. While water vapor can also contribute to corrosion in high-temperature environments, it is primarily the acid formation that leads to the corrosion in this specific scenario.

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False

True, but only in the presence of oxygen

True, but only at high temperatures

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