海船船员考试
单选题The self-contained breathing device should not be used in which situation?（）A Oxygen deficient spacesB Compartments containing poisonous vaporsC Fighting fires that produce heavy smokeD Underwater search
题目
Oxygen deficient spaces
Compartments containing poisonous vapors
Fighting fires that produce heavy smoke
Underwater search
参考答案和解析
相似问题和答案
第1题：
What is the minimum period of time that the air supply for a self-contained breathing apparatus is required to last?________.
A.10 minutes
B.20 minutes
C.30 minutes
D.90 minutes
自己式呼吸器的时间是最少30分钟。
第2题：
The bypass valve on a self-contained breathing device should be opened if ______．
A.You are entering a space containing poisonous vapors
B.You are entering a space containing explosive gases
C.The regulator of the breathing apparatus malfunctions
D.The face piece of the breathing device is too tight
第3题：
On a ship, the locker or space containing the self-contained breathing apparatus must _____.
A.be located in close proximity to the main control station
B.be equipped with battery powered emergency lighting
C.be marked SELF-CONTAINED BREATHING APPARATUS
D.All of the above
在船上有自给式呼吸器的舱室或空间必须被标记“SELF-CONTAINEDBREATHINGAPPARATUS”。
第4题：
The Company network needs to pass traffic between VLANs. Which device should be used to accomplish this？ （）
- A、 Hub
- B、 Switch
- C、 Router
- D、 Bridge
- E、 None of the other alternatives apply
正确答案:C
第5题：
If a technician suspects that the voltage being delivered to a desktop computer’s power supply is insufficient or incorrect, which device should be used to determine the correct voltage?（）
- A、A power supply tester
- B、A multimeter
- C、A loopback adapter
- D、A cable tester
正确答案:B
第6题：
You are in a tank wearing the self-contained breathing apparatus and you desire to return topside．How many tugs of the lifeline mean to take up the slack ________．
A.One
B.Two
C.Three
D.Four
第7题：
Gas masks ______.
A.should be worn while fighting a fire
B.can be used in atmospheres deficient in oxygen
C.filter contaminants from air that is to be breathed
D.may be substituted for a self-contained breathing apparatus
气体面具过滤用于呼吸的空气中的污染物。
第8题：
Self-contained breathing apparatus is used to ______.
A.make underwater repairs to barges
B.determine if the air in a tank is safe for men
C.enter areas that may contain dangerous fumes or lack oxygen
D.resuscitate an unconscious person
自给式呼吸设备被用于进入一个可能含有有毒气体或氧气不足的区域。
第9题：
Which protocol should be used to establish a secure terminal connection to a remote network device？Select the best response.（）
- A、ARP
- B、SSH
- C、Telnet
- D、WEP
- E、SNMPv1
- F、SNMPv2
正确答案:B
第10题：
you are entering a space containing poisonous vapors
you are entering a space containing explosive gases
the regulator of the breathing apparatus malfunctions
the face piece of the breathing device is too tight