单选题Why will a turbocharger diesel engine produce black smoke if excessive additional load is applied too quickly?（）AExhaust energy would draw excess airBThe inertia of the turbocharger rotor causes a time lag which delays the turbocharger speed increaseCExhaust gas pumping losses are increased due to turbine windageDExhaust gas back pressure falls slightly due to increased nozzle action
单选题
Why will a turbocharger diesel engine produce black smoke if excessive additional load is applied too quickly?（）
A
Exhaust energy would draw excess air
B
The inertia of the turbocharger rotor causes a time lag which delays the turbocharger speed increase
C
Exhaust gas pumping losses are increased due to turbine windage
D
Exhaust gas back pressure falls slightly due to increased nozzle action
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