Fluid Mechanics
The terminal velocity of a small sphere settling in a viscous fluid varies as the

Inverse square of the diameter
Square of the difference in specific weights of solid & fluid
Inverse of the fluid viscosity
First power of its dimeter

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Fluid Mechanics
Vane anemometer

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

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