ESCO Air Conditioning Practice Exam

What can be used for leak detection with all high-pressure refrigerants?

1. Soap bubbles

2. Infrared detection

3. Electronic sniffer

4. Ultraviolet detection

The correct answer is: Soap bubbles

Soap bubbles are often the most effective method for leak detection with high-pressure refrigerants because they can easily pinpoint the source of the leak. Infrared detection may not be as effective since high-pressure refrigerants can spread quickly and may not give off enough heat to be detected. Electronic sniffer technology can also be useful, but it may not be sensitive enough to detect small leaks with high-pressure refrigerants. Ultraviolet detection, on the other hand, is better suited for low-pressure refrigerants and may not work as well with high-pressure refrigerants. Therefore, soap bubbles are the best choice for leak detection in this scenario.