What does ?p = QR mean in words? A. Viscous fluid will only flow through a pipe

Question

What does ?p = QR mean in words?

A. Viscous fluid will only flow through a pipe if the resistance is zero.
   
B. If there is no pressure difference across a pipe, the flow is 1/R.
   
C. A viscous fluid will always move more and more quickly through a pipe because the pressure increases in the direction in which the fluid is flowing through the pipe.
   
D. Pushing a viscous fluid through a pipe requires a drop in pressure along the direction in which the fluid is flowing through the pipe.
   
E. If you increase the flow of a viscous fluid, you increase the pressure at the end of the pipe toward which the fluid if flowing.

Explanation / Answer

Delta P is the change of pressure Q is flow rate and R is resistance.

Thus the given equation shows that for a constant R, more the flow Q, more is the change in presuure. Thus the correct option is:

E. If you increase the flow of a viscous fluid, you increase the pressure at the end of the pipe toward which the fluid if flowing.

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