問題詳情

36.The stroke-to-bore ratio of a low speed engine is 3:1. When the stroke is 900 mm, thediameter 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：簡單0.798561
統計：A(15),B(111),C(8),D(2),E(0)