問題詳情

34.The timing for each starting valve must be set so that it opens when the piston is .
(A)just past the top-dead-center(TDC)
(B)just past the bottom-dead-center(BDC)
(C)on the way upward
(D)just before the bottom-dead-center(BDC)

參考答案

答案:A
難度:適中0.666667
統計:A(18),B(3),C(2),D(3),E(0)