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Which outcome results when applying Bernoulli's equation to estimate flow rate near a pump impeller's surface at high speed?

A)Implies negative absolute pressure values
B)Accurately predicts volumetric flow rate
C)Indicates uniform velocity flow profile
D)Shows minimal impact from fluid viscosity

💡 Explanation

When pump speed causes pressures to fall near zero, applying Bernoulli's equation results in predicted pressures below absolute zero (impossible); cavitation may occur because the liquid vaporizes readily, therefore it is option A rather than accurately estimating or showing viscosity negligible.

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