海船船员考试
单选题Which characteristic is an advantage of Halon as a fire extinguishing medium?（）A Electrically non-conductiveB Relatively inexpensiveC Effective against chemicals containing an oxidizerD All of the above
题目
Electrically non-conductive
Relatively inexpensive
Effective against chemicals containing an oxidizer
All of the above
相似问题和答案
第1题：
An advantage of a dry chemical over a carbon dioxide fire extinguisher is its ______.
A.greater range
B.effectiveness on all types of fires
C.cleanliness
D.All of the above
干粉灭火器优于CO2灭火器的优点是它更远的作用距离。
第2题：
Halon extinguishes a fire by ______.
A.breaking the chain reaction
B.smothering the fire
C.cooling the fire
D.coating the fuel with a nonflammable surface
卤化烃灭火主要时通过打破（燃烧）作用链。
第3题：
Which of the following is NOT a characteristic of message filtering?
A semantics
B media
C ethics
D organizational status
E reputation
第4题：
Fires in electrical equipment
Flammable oils and greases
Class A fires in ordinary combustibles
Materials containing their own oxygen
第5题：
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.
- A、common
- B、oil
- C、electrical
- D、chemical
正确答案:B
第6题：
An advantage of an ABC dry chemical over a carbon dioxide fire extinguisher is ______.
A.lack of toxicity
B.the multipurpose extinguishing ability
C.burn-back protection
D.cooling ability
ABC干粉灭火器较二氧化碳灭火器时一个多功能灭火器。
第7题：
Which of the following is a class A fire?下列哪一项是A类火灾（）
- A、Halon 卤化烃(二氟二氯甲烷)
- B、electrical 电气类
- C、liquid 液体类
正确答案:D
第8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9题：
HALON FIRE EXTINGUISHER是指（）
- A、海伦灭火瓶
- B、干粉化学灭火瓶
- C、二氧化碳灭火瓶
- D、水灭火瓶
正确答案:A
第10题：
Conducts electricity
Difficult to store
Large volume necessary to be effective
Ineffective in powdered metal fires