Card 30 / 41: Which of the following is true for Hagen-Poiseuille flow or fully developed laminar pipe flow? I. Δ P = 128 μ L Q/(π R4) II. Fluid velocity depends upon axial and radial positions in the pipe. III. The velocity profile may be parabolic or almost plug (flat) like. IV. The pressure drop is proportional to viscosity, pipe length, and flow rate, and inversely proportional to the fourth power of the pipe diameter. V. Fluid velocity only depends upon radial position in the pipe.
A)
IV and V only
B)
I only
C)
I and II onlly
D)
III only
E)
I. II. and III only
Answer:
A) IV and V only
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