問題詳情
12. Extinguishing agent act by heat removing (cooling), smotheringand flame inhibition. Which of the followings has the function offlame inhibition ?
(A) Dry chemical powder.
(B) Foam.
(C) Carbon dioxide.
(D) Steam.
參考答案
答案:A
難度:困難0.28
統計:A(7),B(6),C(9),D(2),E(0)