Kent Test PDF

Flow Measurement: Measuring volume or mass over time Flow: Response to an applied force Custody Transfer: Transfer fluid for money Flowmeter Installation: Straight pipe, minimizes turbulence Flow Straightener: Eliminates turbulence Reynold’s Numbers: Ratio of liquid inertia force to drag Turbulence:...

Flow Measurement: Measuring volume or mass over time Flow: Response to an applied force Custody Transfer: Transfer fluid for money Flowmeter Installation: Straight pipe, minimizes turbulence Flow Straightener: Eliminates turbulence Reynold’s Numbers: Ratio of liquid inertia force to drag Turbulence: Reynold’s number over 4000 Volumetric Flow Rate, Flow Velocity, Mass Flow Rate Change Flow Rate: Change bed depth or speed Fluid Flow Measurement: Velocity, Density, Viscosity 5 Types of Flow Meters: Differential Pressure, Positive Displacement, Velocity, Mass, Electronic Differential Flowmeter: Flow Nozzle, Venturi Tube, Orifice Plate 4 Types of Orifice Plate: Concentric, Eccentric, Segmental, (Cononical, Edged, Quadrant) Flashing: Formation of gas or vapor bubbles Cavitation: Collapse of bubbles to liquid state Vena Contracta: Lowest point of pressure Potentiometer and Tachometer (Variable Area Flowmeter) Positive Displacement Flowmeter: Mechanically makes direct measurements, subject to wear problems Electronic Flowmeters: Thermal, Mass, Coriolis, Electromagnetic, Vortex Electromagnetic: Uses Faraday’s Law, Non-ferrous conductor Positional Measurements: Distance, Velocity, Acceleration Speed is a Scalar, Velocity is a Vector Acceleration: Change in an object's velocity Tachometer: Measure angular velocity of a shaft, DC Generator and Toothed Rotor Tachometer LVDT: Linear Variable Differential Transducer Encoders: Incremental and Absolute 2 Track Incremental Encoder: Quadrature Absolute is an optical Encoder Gray Code