Haryana BSEH Senior Secondary NSQF Plumbing Practice Questions - Board Of School Education Haryana (BSEH) Senior Secondary Class 12 NSQF Plumbing (code PLM 985) Exam

In a sensor plumbing fixture, what is the primary role of an infrared (IR) proximity sensor?

To heat water to a set temperature To detect a user’s hands or body and trigger flow without touch To measure pipe wall thickness during installation To convert AC mains power into solar energy

Correct Answer:

To detect a user’s hands or body and trigger flow without touch

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