問題詳情

18. Blue smoke coming from the diesel exhaust would indicate_____  .
(A) excessive fuel consumption
(B) burning of lubricant oil due to possible blow-by
(C) lean fuel/air mixture, too much air
(D) lean fuel/air mixture, too much fuel

參考答案

答案:B
難度:簡單0.818182
統計:A(1),B(9),C(1),D(0),E(0)

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