单项选择题
A.notify the engineer on watch B.isolate and secure the piping C.throw sand on the fire D.extinguish the fire using a combination nozzle with applicator
The four basic components of a fire are chain reaction,...
单项选择题The four basic components of a fire are chain reaction, heat, fuel, and （）.
A.carbon monoxide B.oxygen C.carbon dioxide D.any gaseous substance
The FIRST step to take in fighting an engine room fire ...
单项选择题The FIRST step to take in fighting an engine room fire resulting from a ruptured fuel oil service line, is to （）.
A.evacuate all engine room personnel B.fight the fire with hand portable extinguishers C.activate the main CO2 bank D.stop the flow of leaking fuel oil
The four basic components of a fire are fuel, heat, oxy...
单项选择题The four basic components of a fire are fuel, heat, oxygen and a chain reactionWhich of the following statements best describes what must be eliminated to extinguish a fire?（）
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
