Daily Safety and Fire Prevention Question (12.18)
Thread Content
1. A new internal floating roof crude oil storage tank with a capacity of 6000 m3 is to be constructed. When using a medium-expansion foam fire extinguishing system, it is advisable to choose a ( ) foam fire extinguishing system: (A) fixed, (B) mobile, (C) semi-fixed, (D) semi-mobile.2. In areas where flammable gases may be released and have a density lower than that of air, flammable gas detectors should be installed in the ( ) of the protected area: (A) lower part, (B) middle part, (C) middle part or lower part, (D) top.
Reference answers: A, D