In pipe flow measurement, which device is commonly used?

Prepare for the Wisconsin DNR Wastewater Operator Certification Exam. Benefit from flashcards and multiple-choice questions with hints and explanations. Gear up for your certification test!

Multiple Choice

In pipe flow measurement, which device is commonly used?

Explanation:
Measuring flow in a pipe uses devices designed for closed conduits. Devices like a weir or a Parshall flume rely on a free liquid surface and open-channel flow, so they don’t give accurate or practical measurements when the liquid is confined in a pipe. A pressure meter isn’t typically used as a primary flow meter in pipelines. Ultrasonic meters, by contrast, are built for enclosed pipes and determine flow by sending sound through the fluid and using transit-time differences or Doppler effects to compute rate. This makes ultrasonic meters the common, reliable choice for pipe-flow measurement in wastewater systems.

Measuring flow in a pipe uses devices designed for closed conduits. Devices like a weir or a Parshall flume rely on a free liquid surface and open-channel flow, so they don’t give accurate or practical measurements when the liquid is confined in a pipe. A pressure meter isn’t typically used as a primary flow meter in pipelines. Ultrasonic meters, by contrast, are built for enclosed pipes and determine flow by sending sound through the fluid and using transit-time differences or Doppler effects to compute rate. This makes ultrasonic meters the common, reliable choice for pipe-flow measurement in wastewater systems.

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