Environmental Protection Agency (EPA) MVAC Certification 2025 – 400 Free Practice Questions to Pass the Exam

Image Description

Question: 1 / 400

Is R-134a a corrosive refrigerant?

True

False

R-134a, or tetrafluoroethane, is classified as a non-corrosive refrigerant under standard conditions. Unlike some refrigerants that can cause degradation and corrosion of system components or materials, R-134a is stable and does not react chemically with metals or plastics used in MVAC systems. It has been widely used in automotive air conditioning and other cooling applications due to its low toxicity and minimal environmental impact compared to older refrigerants like R-12.

In terms of performance and safety, non-corrosive attributes contribute to the longevity and reliability of the equipment using R-134a. This characteristic eliminates the risks associated with corrosive substances, making maintenance and repairs easier and less costly.

Other options suggest conditions under which R-134a might become corrosive, but this is not accurate for the refrigerant itself under normal operating conditions, which is the basis for the correct choice.

Get further explanation with Examzify DeepDiveBeta

Only at high temperatures

Only in certain conditions

Next Question

Report this question

Download Environmental Protection Agency (EPA) MVAC Practice Certification PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy