单项选择题

Halon extinguishes fire primarily by（）.

A.cooling
B.smothering
C.shielding of radiant heat
D.breaking the chain reaction

点击查看答案&解析

上一题目录下一题

单项选择题

A.breaking the chain reaction
B.smothering the fire
C.cooling the fire
D.coating the fuel with a nonflammable surface

单项选择题

A.base of the equipment
B.top of the equipment
C.power source
D.source of the fire

单项选择题

A.allowing better access in an emergency
B.eliminating potential fuel sources
C.eliminating trip hazards
D.improving personnel qualifications