题目内容

必须完全确认处所没有人员存在时施放的灭火系统为________？Which fire extinguishing system must be completely confirmed that no person exists in the premises.

A. 泡沫灭火系统 Foam fire extinguishing system
B. 水灭火系统 Water fire extinguishing system
C. 自动喷水系统 Automatic water spray system
D. 固定式二氧化碳灭火系统 carbon dioxide fire extinguishing system

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压力水雾灭火系统，它采用高压力水泵，通过高压水管特殊的喷嘴作用产生__，从而达到冷却和灭火效果. Pressurized water mist fire extinguishing system which uses a high pressure water pump to generate through a special nozzle of a high pressure water pipe, achieving cooling and fire extinguishing effects.

A. 泡沫 Foam
B. 雾粒 mist particles
C. 蒸汽
D. 氮气

由于海上水资源丰富，船舶利用____扑灭一般火灾是最常见和最普遍. Because of the abundant water resources at sea, it is the most common way for ships to use _to extinguish general fires.

A. 泡沫 Foam
B. 海水 Sea water
C. 淡水 Freshwater
D. 氮气 Nitrogen

火箭降落伞火焰信号属于救生__?Rocket parachute flame signals is one of .

A. 视觉信号 visual signals
B. 辅助信号 Auxiliary signal
C. 声音信号 Sound signal
D. 无线电信号 Radio signal

救生衣颜色一般为____？The life jacket color is generally .

A. 红色 Red
B. 蓝色 Blue
C. 橙黄色 Orange
D. 紫色 purple