Sample interview questions: Are you familiar with using air pressure testing or vacuum testing for drain system evaluation?
Sample answer:
Yes, I am highly proficient in using both air pressure testing and vacuum testing for drain system evaluation.
Air Pressure Testing:
* Involves pressurizing the drain line with compressed air to identify leaks or blockages.
* Utilizes specialized equipment to seal off the drain system and monitor pressure changes.
* Helps detect leaks in pipes, joints, fixtures, and even hidden defects within the drain system.
Vacuum Testing:
* Utilizes a vacuum pump to create negative pressure within the drain system.
* Identifies leaks or blockages by observing the rate of vacuum decay.
* Particularly effective in detecting smaller leaks and blockages that may not be evident through air pressure testing.
Advantages of Using Air Pressure and Vacuum Testing:
* Accuracy: Both methods provide precise and reliable results, ensuring thorough drain system evaluations.
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Source: https://hireabo.com/job/12_0_10/Drain%20Technician