Which risk increases when a turbocharger in a diesel engine experiences excessive exhaust backpressure?

💡 Explanation

When exhaust backpressure exceeds design limits, turbine speed decreases, potentially causing compressor surge because pressurized air reverses flow through the compressor, damaging the impeller blades. Therefore, impeller damage increases, rather than converter failure, bearing wear or injector clogging which happen from different causes.

• Which cavitation risk escalates as hydraulic pump suction pressure declines toward the fluid's vapor pressure?
• Which risk increases when a power transformer operates continuously with elevated harmonic content?
• Which outcome follows welding quenched high-strength steel members?
• Which consequence results when resonance is induced during cylindrical grinding?
• Which risk predominates when a long-range aircraft encounters clear-air turbulence during cruise?
• During aircraft landing in heavy crosswinds, which control methodology most mitigates asymmetric lift?