【多选题】
救生软梯使用时要注意___。
A. 必须两头固定
B. 必须与挂钩梯联合使用
C. 选好固定支点
D. 必须挂靠牢固
E. 视情加挂副梯
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相关试题
【多选题】
下列水带系统中，属于水带串联系统是___。
A. 消防车利用双干线供两支带架水枪
B. 消防车利用双干线供一支带架水枪
C. 消防车使用单干线供一支带架水枪
D. 消防车使用单干线利用分水器供水
【多选题】
下列论述错误的是___。
A. 同型、同径水带串联系统压力损失可按压力损失叠加法或阻力系数法进行计算
B. 同型、同径水带并联系统压力损失可按流量平均法或阻力系数法进行计算
C. 不同类型、不同直径水带串联系统压力损失可按压力损失叠加法或流量平均法进行计算
D. 不同类型、不同直径水带并联系统压力损失可按阻力系数法或流量平均法进行计算
E. 利用分水器供水线路是水带串联和并联的混合系统
【多选题】
下列说法正确的是___。
A. 泡沫枪的混合液量与可燃物的种类、泡沫流量系数和可燃物的燃烧面积有关
B. 固体可燃物的燃烧面积与水枪的流量和火灾的阶段有关
C. 水枪控制面积的计算与水枪的流量和灭火用水供给强度有关
D. 火场需用的水枪数量与火场的燃烧面积和单支水枪的控制面积有关
【多选题】
正确把握救人与灭火的关系，应针对不同的现场条件，分别采取___等战术措施。
A. 先灭火后救人
B. 先救人后灭火
C. 救人与灭火同步进行
D. 灭火与救人分开进行
E. 先灭火为救人创造有利条件
【多选题】
扑救高层建筑火灾时，灭火救援难度大的主要表现是___。
A. 易产生“烟囱”效应，烟火流动速度快
B. 外部温度高、烟气浓、能见度低，灭火救援人员能够深入内部
C. 楼层高，消防移动作战装备器材难以发挥作用
D. 被困人员易惊慌失措，可供疏散逃生的通道少，容易造成大量人员伤亡
E. 浓烟、毒气等燃烧产物易造成被困人员窒息中毒
【多选题】
扑救钢结构建筑火灾的灭火措施有___。
A. 向建筑顶部射水冷却降温，防止钢构件受热变形
B. 对彩钢板为屋面板的钢结构建筑火灾，首先不应开启排烟窗或破拆局部结构，进行排烟
C. 在确定无坍塌的可能时，采取必要的保护措施，深入内部救助被困人员
D. 在确定无坍塌的可能时，强攻近战，内外合击，迅速消灭火灾
E. 清除燃烧物上面的障碍物，彻底消灭火势，以防复燃
【多选题】
运用高倍数泡沫灌注灭火方法，扑救隧道火灾的基本要求是___。
A. 从隧道顶部通风口灌注高倍数泡沫
B. 确认隧道内无人
C. 将下风方向、低洼处洞口封堵住
D. 从上风方向、高端处洞口灌注高倍数泡沫
E. 发生火灾的隧道空间较小
【多选题】
危险化学品仓库发生火灾时，应注意___等。
A. 所有参战人员做好安全防护
B. 通知有关部门，组织疏散、撤离毒气扩散危险区域内的无关人员
C. 爆炸难以制止并威胁人员安全时，应迅速撤离现场
D. 保障灭火剂、防护性器材和其它有关物品的供给
【多选题】
扑救油罐火灾中，冷却罐体和防止爆炸的方法措施是___。
A. 开启水喷淋冷却装置
B. 利用水枪、带架水枪进行冷却
C. 冷却水要射至罐壁下沿，要求均匀留有空白点
D. 对相邻受火势威胁的油罐，应用石棉被等覆盖物覆盖泄漏点，控制油蒸气外泄
E. 危险时，可启动泡沫灭火装置，利用泡沫覆盖液面，防止油品爆炸
【多选题】
扑救油罐火灾的灭火措施是___。
A. 消灭地面流淌火
B. 利用车载炮、高喷车、移动炮等移动装备灭火
C. 启动固定、半固定灭火装置实施冷却和灭火
D. 覆盖、直流水冲击、手提干粉灭火
【多选题】
扑救液化石油气火灾时应注意___。
A. 受理火警时，要问清火灾发生的具体情况
B. 选择正确停车位置
C. 在警戒区域内最大限度地减少人员数量
D. 灭火后要彻底清查火场，消除危险因素，防止复燃复爆
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