Vacuum leak testing is being discussed. Technician A says to use a vacuum pump to check each component. Technician B says to use an ultrasonic tester. Who is correct?

Question

Vacuum leak testing is being discussed. Technician A  says to use a vacuum pump to check each component. Technician B says to use an ultrasonic tester. Who is correct?

Quizplus · Accepted Answer

Both techniques are valid for vacuum leak testing. A vacuum pump can be used to apply a vacuum to the system and check for leaks by observing if the vacuum holds. An ultrasonic tester can detect the high-frequency sounds produced by air or gas escaping from a leak, even in a vacuum environment.

Vacuum Leak Testing Is Being Discussed