Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a ________________?
Correct answer: B. Magnetic flowmeter
- A. Pitot tube
- B. Magnetic flowmeter
- C. Flow nozzle type flowmeter
- D. Turbine flowmeter
Explanation
A magnetic flowmeter measures conductive-fluid velocity through the voltage induced in the fluid by a magnetic field, so density, viscosity, and velocity-profile effects are largely avoided. Pitot, nozzle, and turbine meters are more dependent on flow properties or profile.
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