問題詳情

35. Stainless steel bellows expansion joints are commonly used since they will absorbmovement or vibration in several planes, eliminate maintenance and reduce friction andheat loss. Which caution is not necessary to do when expansion joints are installed?
(A) The joint is installed at its length more than the limit.
(B) Maximum and minimum working temperatures must be considered when choosing the joint.
(C) The joint must be so installed that it is neither over-compressed nor over-extended.
(D) The installation length must be appropriate to the temperature at installation.

參考答案

答案:A
難度:適中0.481928
統計:A(80),B(42),C(37),D(7),E(0)