海船船员考试
单选题A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.A one controlB two controlsC three controlsD none of the above
题目
one control
two controls
three controls
none of the above
相似问题和答案
第1题：
In the event of fire in a machinery space，______.
A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failed
B.the fixed carbon dioxide system should be used immediately，as it is the most efficient means of extinguishment
C.water in any form should not be used as it will spread the fire
D.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
第2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3题：
Theoretical perfect combustion in a diesel engine yields by-products of_____.
A.aldehydes and carbon dioxide
B.water vapor and carbon monoxide
C.nitrogen and carbon monoxide
D.water vapor and carbon dioxide
第4题：
secure the engine room ventilation
secure the machinery in the engine room
evacuate all engine room personnel
All of the above
第5题：
Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces, such as in a pumproom, provided that the ______.
A.persons in the space wear gas masks
B.persons in the space wear damp cloths over their mouths and nostrils
C.ventilation system is secured and all persons leave the space
D.ventilation system is kept operating
加入在通风系统关闭，并在所有人离开的情况下，在密闭的空间，足量的二氧化碳是安全灭火的材料。
第6题：
What could result in an incorrect oxygen concentration reading on the oxygen indicator ________．
A.Exposure to carbon dioxide for no more than 1 minute
B.Exposure to carbon dioxide for more than 10 minutes
C.Exposure to a very low concentration of sulfur dioxide for no more than 2 minutes
D.None of the above
第7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8题：
A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by ______.
A.one control
B.two controls
C.three controls
D.none of the above
第9题：
Deep-fat cooking equipment shall be fitted with the following:（）
- A、An automatic or manual fixed extinguishing system tested to an appropriate standardacceptable to the Organization
- B、Controls for manual operation of the fire-extinguishing system which are clearlylabeled for ready use by the crew
- C、Arrangements for automatically shutting off the electrical power upon activation of thefire-extinguishing system
- D、an alarm for indicating operation of the fire-extinguishing system in the galley wherethe equipment is installed
正确答案:A,B,C,D
第10题：
lack of toxicity
the multipurpose extinguishing ability
burn-back protection
cooling ability