你可能感興趣的試題

單項(xiàng)選擇題

Which of the listed factors will indicate the most about the ability of a fuel to ignite in a diesel engine?（）

A.Viscosity
B.Sulfur content
C.Pour point
D.Cetane number

單項(xiàng)選擇題

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