Fluid Mechanics
Transition from laminar flow to turbulent flow is aided by the

Pressure gradient and the compressibility of the flowing medium
Vibration
All of these
Surface roughness and curvature (i.e.sharp corners)

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Fluid Mechanics
Vane anemometer

Is an area meter
None of these
Rotates an element at a speed determined by the velocity of the fluid in which the meter is immersed
Is a variable head meter

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