單項(xiàng)選擇題

Which statement about firefighting foam is TRUE?（）

A.Foam conducts electricity
B.To be most effective，foam should be directed at the base of the fire
C.Foam is most effective on burning liquids which are flowing
D.Foam can ONLY be used to extinguish class A fires

你可能感興趣的試題

單項(xiàng)選擇題

Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?（）

A.Give them brandy
B.Keep them in motion
C.Immerse them in a warm bath (105°F，40°C)
D.Cover them with an electric blanket set for maximum temperature

單項(xiàng)選擇題

Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.

A.Foam should not be used on electrical fires
B.One kilo of low expansion foam solution produces much more foam
C.Foam is only efficient when it covers the top of burning combustibles
D.A stream of foam should be deflected off the deck in order to best agitate the fire

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

Which statement about firefighting foam is TRUE?（）

你可能感興趣的試題

Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?（）

Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.