Which outcome occurs when a two-stroke engine piston ring loses tension and sealing against the cylinder wall?

💡 Explanation

When piston ring tension is lost, blow-by occurs because combustion gases leak past the piston, reducing compression and allowing oil to enter the combustion chamber. Therefore reduced power and exhaust smoke result, rather than pre-ignition, fuel starvation, or coolant boiling that depend on other engine failures.

• Which risk increases when variable refrigerant flow (VRF) systems experience excessive runtime?
• Which risk increases when electrostatic discharge damages a diode junction?
• Which long-term consequence occurs when chloride ions penetrate prestressed concrete bridge deck?
• Which outcome occurs when a refrigerant expansion valve fails open in a chiller system?
• Which outcome occurs when a photovoltaic cell experiences reverse bias exceeding its Zener voltage?
• Which outcome occurs when cooling is lost in internal turbine blades?