問題詳情

12. Alltanks should be provided with a means of determining the liquid level. What devices are generally installed for this purpose even when a tank liquid-level indicating system is provided?
(A) Sounding tubes  
(B) Overflow tubes
(C) Vent tubes
(D) Stripping pipes

參考答案

答案:A
難度:簡單0.714286
統計:A(15),B(4),C(1),D(1),E(0)

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