HALON FIRE EXTINGUISHER是指（）
第1题：
A carbon dioxide fire extinguisher should be recharged ______.
A.at least annually
B.whenever it is below its required weight
C.only if the extinguisher has been used
D.before every safety inspection
第2题：
Fire in the cabins. Close all fire doors and use the （）powder extinguisher.
第3题：
Halogenated hydrocarbon， Halon in short form，is used on board ship as ________ ．
A.fire-extinguishing medium
B.a standard fire test
C.a non-combustible material
D.a fire main
第4题：
generators
oil drums
the bridge controls
combustible metals
第5题：
（）is best for electrical fire.
第6题：
This fire extinguisher is to be used only in case of（）.
Aurgency
Bemergency
Cimmediacy
Dcrisis
第7题：
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.
第8题：
Inspection of a Halon extinguisher involves checking the hose，handle，nozzle，and ______.
A.sight glass
B.weighing the extinguisher
C.service technicians report
D.last date it was charged
第9题：
urgency
crisis
immediacy
emergency
第10题：
Dry chemical
Halon
Low velocity fog
Steam