海船船员考试
单选题Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.A It causes minimal damageB It is safe for personnelC It is cheaperD It is most effective on a per unit basis
题目
It causes minimal damage
It is safe for personnel
It is cheaper
It is most effective on a per unit basis
相似问题和答案
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
二氧化碳灭火器一般重量减少百分之十必须从新填装。
第2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3题：
Which of the following is (are)an advantage of a dry chemical extinguisher over a carbon dioxide extinguisher？The dry chemical extinguisher：Ⅰ．Has a greater range．Ⅱ．Provides a heat shield for the operator．
A.Ⅰonly
B.Ⅱonly
C.Both Ⅰand Ⅱ
D.Neither Ⅰ nor Ⅱ
第4题：
utilizing carbon dioxide or dry chemical fire extinguishers
utilizing soda and acid fire extinguishers
blowing the flames out
letting it burn itself out
第5题：
Alcohol foam
Dry chemical
Chemical foam
Water fog
第6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7题：
As compared to carbon dioxide, dry chemical has which advantage? ______.
A.Cleaner
B.Effective on metal fires
C.Greater range
D.More cooling effect
与CO2相比，干粉灭火器有哪些优点？作用距离更远.
第8题：
______, as the chemical extinguisher agent, should be used for an electric fire.
A.dry chemical or foam
B.foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical
二氧化碳或干粉灭火器作为化学灭火器，用于扑灭电器火灾。
第9题：
Cleaner
Effective on metal fires
Greater range
More cooling effect
第10题：
Class A and class B
Class B and class C
Class A and class C
Class C, class D, and class E