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← ScienceWhich effect diminishes when reducing oil viscosity in turbine bearings?
A)Fluid film load carrying capacity
B)Turbulence within bearing clearances
C)Hydrodynamic cooling rate
D)Friction-induced heating of components✓
💡 Explanation
Reduced oil kinematic viscosity lowers the fluid's internal resistance and therefore frictional losses, which drive friction-induced heating, because a thinner film experiences less shear. Therefore, less heat is generated, rather than alternative effects linked to turbulence or cooling that require high viscosity.
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