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Which mechanism causes deviations from Bernoulli's equation in pipelines?

A)Viscosity leads to energy dissipation
B)Pressure gradients inducing cavitation
C)Increased bulk fluid compressibility
D)Kinetic energy drives fluid instability

💡 Explanation

Viscosity introduces shear stresses, causing viscous dissipation; therefore, more energy converts to thermal energy, and the fluid experiences head loss, rather than ideal, frictionless flow, because Bernoulli assumes negligible viscosity.

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