【单选题】
代号CB表示___消防泵特征代号
A. 工程用消防泵
B. 车用消防泵
C. 船用消防泵
D. 其他用消防泵
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答案
B
解析
暂无解析
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GSD—2.0—65—20—橡胶表示___
A. 工作压力为2.0 Mpa、长度65mm、内径20m的橡胶衬里消防水带
B. 工作压力为2.0 Mpa、内径65mm、长度20m的橡胶材料消防水带
C. 工作压力为2.0 Mpa、长度65mm、内径20m的橡胶材料消防水带
D. 工作压力为2.0 Mpa、内径65mm、长度20m的橡胶衬里消防水带
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A类泡沫的全称是“自动压缩空气泡沫”,这种泡沫本身具有极好的灭火性能和防复燃性能,在使用中充分利用压缩空气,使混合泡沫中的水滴变成气泡,大大增加了同等体积水的表面积,冷却、覆盖、附着、渗透作用和灭火效率大幅提高。以下关于A类泡沫说法不正确的是___
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【单选题】
是安装在水带线路或管路中间,用于移动式灭火系统或半固定式灭火系统。___
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射水器材是将水带输送来的压力水变为高速射流,并以直流喷雾或伞状水幕等不同水流状态喷射至一定距离进行灭火的工具。主要指 ___
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【单选题】
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