問題詳情

36.What is the thin plate with the typical disk-shape and a hole that is normally used todistribute the load of a threaded fastener?
(A)screw
(B)grindstone
(C)washer
(D)hose clamp

參考答案

答案：C
難度：適中0.433333
統計：A(6),B(2),C(13),D(7),E(0)