A、A.is not an effective agent on Class B fires
B、B.does little or no cooling
C、C.dissipates quickly
D、D.is rapidly absorbed by the liquid
更多“When dry chemical extinguishers are used to put out class B fires，there is a danger of reflash because dry chemical（）.”相关的问题
A、dry chemical or foam B、foam or soda acid C、carbon dioxide or foam D、carbon dioxide or dry chemical
A、Dry chemical or foam B、Foam or soda acid C、carbon dioxide or foam D、carbon dioxide or dry chemical
A、gravity when the extinguisher is turned upside down B、pressure from a small CO2 cartridge on the extinguisher C、air pressure from the hand pump attached to the extinguisher D、pressure from the reaction when water is mixed with the chemical
A、gravity when the extinguisher is turned upside down B、pressure from a small CO2 cartridge on the extinguisher C、air pressure from the hand pump attached to the extinguisher D、pressure from the reaction when water is mixed with the chemical
A、A.After each use B、B.When the air temperature exceeds 90°F C、C.Every 6 months D、D.Every 12 months
A、foam or soda acid B、dry chemical or foam C、carbon dioxide or dry chemical D、carbon dioxide or foam
A、foam or soda acid B、dry chemical or foam C、carbon dioxide or dry chemical D、carbon dioxide or foam
A、carbon dioxide B、dry chemical C、foam (stored-pressure type) D、water (cartridge-operated)
客服
TOP
查看正确答案
