火场排烟有哪些注意事项?
A.与起火单位共同确定排烟方式
B.做好射水准备
C.防止中性面下移
D.加强自身安全防护
自然排烟的烟气排除路径有哪些?
A.窗
B.排烟竖井
C.电梯间
D.安全通道
Match the English expressions in the left column with their corresponding Chinese versions in the right column. Math the letter with each number.
喷雾水流排烟的水压和喷射角度在什么情况下排烟效果最佳?
A.1.0Mpa,45°
B.0.5Mpa,30°
C.1.5Mpa,50°
D.0.8Mpa,60°