Which outcome occurs when rapid thermal cycling causes piston erosion in a direct injection engine?

💡 Explanation

Increased blow-by and oil consumption result from scoring through thermal fatigue initiating crack propagation; crack propagation leads to material detachment via the Paris Law of Fatigue because the cyclic thermal stress range near the piston crown exceeds the threshold; therefore gases leak past the piston rings, rather than creating improved combustion.

• Which risk increases when joint limits constrain inverse kinematics?
• Which emission effect occurs when exceeding the forward current limit of an LED display panel?
• Which outcome occurs from running a hydraulic pump continuously without load?
• Which outcome occurs when a laser diode LED's current limit is exceeded?
• Which outcome results when excessive dither is applied to a digitally controlled pneumatic actuator?
• Which risk increases in hydraulic systems that use accumulators when system pressure exceeds the accumulator's design limit?