Sample interview questions: Are you familiar with using acoustic or ultrasonic leak detection methods for identifying hidden drain leaks? If so, can you explain the process?
Sample answer:
Yes, I am familiar with using acoustic and ultrasonic leak detection methods for identifying hidden drain leaks.
Acoustic Leak Detection:
- Principle: Acoustic leak detection involves listening for the sound of water leaking through a drainpipe.
- Process: A probe containing a microphone is inserted into the drainpipe and moved along its length. The microphone picks up and amplifies the sounds of water flowing, allowing the technician to locate the leak.
- Advantages:
- Non-destructive method
- Can detect leaks in concealed or inaccessible areas
- Suitable for detecting leaks in various materials, including PVC, metal, and cast iron pipes
Ultrasonic Leak Detection:
- Principle: Ultrasonic leak detection uses high-frequency sound waves to detect leaks.
- Process: A transmitter is placed outside the drainpipe, emitting ultrasonic waves. A receiver is then moved along the pipe, detecting and amplifying any ultrasonic emissions caused by leaks.
Source: https://hireabo.com/job/12_0_10/Drain%20Technician