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Instrumentation & Process Control
Measurement Instruments
GATE 2012
Easy

The local velocity of a fluid along a streamline can be measured by

  • Pitot tube
  • BVenturi meter
  • CRotameter
  • DOrifice meter

Explanation

A Pitot tube measures the local (point) velocity via the dynamic pressure difference at that point. Venturi meters, rotameters, and orifice meters all measure bulk/average flow RATE, not a local point velocity.

Source: GATE CH 2012 (2012)

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