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← TechnologyWhich risk increases when cylinder oil's viscosity weakens inside a two-stroke marine diesel engine regarding piston function?
A)Increased thermal efficiency losses
B)Accelerated cylinder liner scuffing✓
C)Reduced charge air availability
D)Elevated exhaust gas temperatures
💡 Explanation
Increased cylinder liner scuffing occurs because weakened viscosity reduces hydrodynamic lubrication between the piston rings and liner, promoting adhesive wear. Therefore, scuffing risk accelerates rather than thermal efficiency reduction from blow-by due to degraded sealing.
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