問題詳情

32. Which device is used in a diesel engine to inject a metered quantity of lubricating oil intothe cylinder as the piston ring pack passes the injection points?
(A) Lubricator
(B) Camshaft
(C) Crosshead
(D) Piston rod

參考答案

答案:A
難度:非常簡單1
統計:A(2),B(0),C(0),D(0),E(0)

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