【单选题】
portable extinguisher（）
A、泡沫灭火器
B、干粉灭火器
C、便携式灭火器
D、卤化烃灭火器
查看正确答案A、water B、foam extinguisher C、CO2 extinguisher D、portable extinguisher
搜题
更多“portable extinguisher（）”相关的问题
第5题
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
第6题
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
第7题
A、Check the tag to see when the extinguisher was last charged B、Release a small amount of CO2; if the CO2 discharges，the extinguisher is acceptable C、Weigh the extinguisher and compare the weight against that stamped on the valve D、Recharge the extinguisher at least once each year
第9题
A、reading the gage pressure B、weighing the extinguisher C、discharging a small amount of CO2 D、seeing if the seal has been broken
第10题
A、reading the gage pressure B、weighing the extinguisher C、discharging a small amount of CO2 D、seeing if the seal has been broken
