单项选择题
One characteristic of a pulse type turbo-charging system is（）
A.high average exhaust manifold B.greatly fluctuating inlet manifold pressure C.constant exhaust manifold pressure D.multiple exhaust pipes to the turbocharger
单项选择题 One advantage of dry cylinder liners used in a diesel engine is the（）
单项选择题 Intake air flow from a diesel engine turbocharger is directly proportional to engine（）
单项选择题 Which of the listed conditions can be used to determine if lube oil has been diluted by fuel? （）
