海船船员考试
单选题The class of fire on which a blanketing effect is essential to extinguish the fire is （）.A class AB class BC class CD class D
题目
class A
class B
class C
class D
相似问题和答案
第1题：
A fire involving trash and paper waste would be classified as a ______.
A.class A
B.class B
C.class C
D.class D
第2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3题：
The class of fire on which a blanketing effect is essential to extinguish the fire is
A.Class 'A'
B.Class 'B'
C.Class 'C'
D.Class 'D'
第4题：
the lack of cooling effect on heated materials
that it cannot be used in a dead ship situation with no electrical power to the CO2 pump
that it breaks down under extreme heat to form poisonous gases
there is no effect on a class A fire even in an enclosed space
第5题：
diesel oil
magnesium
dunnage
electrical insulation
第6题：
An inert gas system is designed to reduce the possibility of tank explosions by ______.
A.eliminating sparks and fire in the vicinity of cargo tanks
B.removing all hydrocarbon gases from the cargo tanks
C.blanketing cargo tanks with inert foam
D.reducing the oxygen concentration below levels necessary for combustion
惰性气体系统用于减少油舱爆炸的可能性是通过降低氧气浓度到低于燃烧必需的水平。
第7题：
An administrator sees that smoke is coming from the UPS. Which of the following should they doFIRST？（）
- A、Use a Class A fire extinguisher.
- B、Evacuate personnel.
- C、Install additional fans in the UPS
- D、Backup the servers.
正确答案:B
第8题：
A fire in a pile of dunnage would be classified as a _____.
A.class A
B.class B
C.class C
D.class D
第9题：
Halon 卤化烃(二氟二氯甲烷)
electrical 电气类
liquid 液体类
第10题：
Class A
Class B
Class C
Class D