問題詳情

24. Thestroke-to-bore ratio of a low speed engine is 3:1. When the stroke is 900 mm, the diameter of bore is ____ .
(A) 2,700 mm
(B) 300 mm
(C) 3,600 mm
(D)225 mm

參考答案

答案:B
難度:適中0.666667
統計:A(7),B(16),C(0),D(0),E(0)

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