Which method does Technician B propose to locate air leaks?

The selected method of blowing air through potential leak points is a practical approach to locating air leaks. This technique allows a technician to directly detect loss of air pressure at specific areas of a vehicle, especially in places like seals, joints, or points where components are connected. By blowing air, it can be easier to identify where air escapes due to sound or visual confirmation of movement, indicating a potential leak.

In contrast, sound amplification is also a valid method for detecting leaks but may not be as direct or effective in all scenarios, particularly if the leak is small or the surrounding noise interferes. Measuring temperature differences can help locate leaks in some contexts, as the air escaping may affect the temperature, but it might not be as straightforward or reliable for finding all kinds of leaks. Calculating air pressure can provide valuable information about the integrity of a system, but without directly manipulating the air at potential leak points, it wouldn't pinpoint the exact location of a leak as effectively as blowing air through those areas.