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← ScienceWhich mechanism reduces the fluid velocity near turbine blades?
A)Fluid boundary layer formation✓
B)Increased blade surface tension
C)Compressible fluid expansion
D)Decreased cavitation threshold
💡 Explanation
Boundary layer formation reduces fluid velocity because viscosity causes a no-slip condition at the surface; therefore boundary layer decreases speed, rather than tension, expansion, or cavitation influencing near-blade velocities.
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