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Which outcome occurs when hydraulic fluid viscosity decreases within a hydrostatic transmission?

A)Increased internal leakage losses
B)Improved pump cavitation resistance
C)Reduced fluid film stiffness
D)Enhanced component thermal efficiency

💡 Explanation

Higher temperatures from decreasing viscosity reduce hydraulic fluid's ability to obstruct flow creating pathways through internal components generating increased leakage; this is because viscous drag decreases. Reduced sealing, therefore, results because the Reynolds number becomes too high leading to turbulence; rather than increased thermal efficiency or less cavitation.

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