海船船员考试
单选题Which characteristic of Halon is a disadvantage when it is used as a fire extinguishing medium?（）A Leaves a residueB Cost，relative to other agentsC Breaks down while under prolonged storageD Conducts electricity
题目
Leaves a residue
Cost，relative to other agents
Breaks down while under prolonged storage
Conducts electricity
相似问题和答案
第1题：
Which is not the characteristic of operating system?
A．resource management
B．transaction management
C．memory management
D．disk management
第2题：
An analog signal's characteristic quantity representing data may 66). at any instant, any value within a continuous(67). For example, an analog signal may follow continuously the values of another physical quantity representing data.A discrete signal is composed of(68)elements in time, each element having one or more characteristic quantities which can represent data. Examples of characteristic quantities are amplitude, waveform,(69), and position in time. A digital signal is a special case of discrete signals, in which data are represented by a(70)number of well-defined discrete values that one of its characteristic quantities may take in time.
A．acquire
B．collect
C．assume
D．fetch
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：
One potential danger is（）the information could be used by others to your disadvantage.
- A、that
- B、what
- C、it
- D、which
正确答案:A
第5题：
Halon gas will decompose and may form very hazardous toxic fumes when discharged ______.
A.directly on flames
B.at room temperature
C.in an extremely cold climate
D.None of the above
第6题：
His bad health is a great disadvantage to him when he looks for a job.(英译汉)
第7题：
A.A sequence will never generate duplicate values
B.The MAXVALUE of a sequence can be equal to the MINVALUE
C.It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zero
D.When a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries
第8题：
6 Which of the following is NOT a characteristic of message filtering?
A. semantics
B. media
C. ethics
D. organizational status
E. reputation
第9题：
An extinguishing agent which effectively cools, dilutes combustible vapors, removes oxygen, and provides a heat and smoke screen is ______.
A.carbon dioxide
B.Halon 1301
C.dry chemical
D.water fog
具有有效的冷却，稀释可燃性气体，移除氧气并提供热和烟的保护层的灭火剂是水雾。
第10题：
Which file characteristic cannot be used in the Cisco IronPort Data Security policies？（）
- A、 file type
- B、 file size
- C、 file age
- D、 file name
正确答案:C