第4题
This fire extinguisher is to be used only in case of().
A.urgency
B. crisis
C. immediacy
D.emergency
第7题
A.Any one component can be eliminated to extinguish a fire
B.Any two components must be eliminated to properly extinguish a fire
C.Any three components must be eliminated to properly extinguish a fire
D.Ali four components must be eliminated to extinguish any fire
第8题
The class of fire on which a blanketing effect is essential to extinguish the fire is
A.Class 'A'
B.Class 'B'
C.Class 'C'
D.Class 'D'
第9题
第10题
How does foam extinguish an oil fire ?______.
A.By cooling the oil below the ignition temperature
B.By removing the fuel souce from the fire
C.By excluding the oxygen from the fire
D.By increasing the weight of the oil
第11题
Except in rare cases, it is impossible to extinguish a shipboard fire by ______.
A.removing the heat
B.removing the oxygen
C.removing the fuel
D.interrupting the chain reaction
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!