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← ScienceWhich consequence results when lubricating jet engine oil reaches a low viscosity?
A)Increased friction bearing and wears✓
B)Improved fuel and cost efficiency
C)Decreased engine operating temperature
D)Enhanced oil pump cavitation margins
💡 Explanation
Increased frictional wear will result. Viscosity provides lubrication, because the decreased viscosity results in reduced film thickness from a reduction of fluid drag according to Stokes' Law leading to direct contact; therefore, increased friction rather than improved efficiency or temperature reduction.
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