【判断题】
南京地铁1号线基地色列G、M电子脉冲围栏系统采用了的脉冲高压为500~800V。
查看试卷,进入试卷练习
微信扫一扫,开始刷题
相关试题
【判断题】
南京地铁1号线基地安防防盗报警系统仅能通过6139键盘进行布撤防操作。
【判断题】
地铁1号线基地安防黑屏幕表示主机掉电,电绿屏表示主机死机。前者可检查是否有供电异常一般说来恢复正常供电30秒后主机会恢复正常,后者请直接联系维保人。
【判断题】
地铁1号线基地安防IP-Alarm软件不能与联动软件安装在同一台电脑中。
【判断题】
地铁1号线基地安防能通过PING命令检测工作站与报警主机通讯状态。
【判断题】
V235GLT隔离地变压器是一种有源接地环路校正设备。
【判断题】
控制键盘V2116通过RS232协议或以太网与矩阵切换/控制系统通信。
【判断题】
CCTV时钟同步信号源为时钟系统提供的RS422接口。
【判断题】
视频矩阵数据接口速率为100/1000 Mbps.
【判断题】
ETD-135 2M误码仪可以在线测试2M通道的误码率。
【判断题】
HQ-AUD的422接口不可与RSXMM板的RS-422接口配置在同一业务内。
【判断题】
OMS支持在不间断业务的情况下,对所有类型的业务进行修改。
【判断题】
南京地铁一号线OVS上可以直接对输入输出的视频端口进行匹配。
【判断题】
光纤对信号的衰减非常小,一般情况下,波长越长,衰减越小。
【判断题】
目前OTN 的E1板卡只支持HDB3 一种线路编码方式。
【判断题】
一块RSXMM板停止工作不会对其他车站的该类型业务造成影响。
【判断题】
南京地铁一号线广播系统使用了OTN的RSXMM板的RS422业务作为控制信道。
【判断题】
在南京地铁一号线任一车站加装一台数字钟,可以直接在OCC的网管上进行监控。( )
【判断题】
中心母钟只发送给各二级母钟数据并不接收二级母钟返回的数据
【判断题】
二级母钟的一个接口可以并联多个数字子钟
【判断题】
中心母钟通过OTN传输通道中将数据传送到各二级母钟。
【判断题】
二级母钟采用相比中心母钟略低的晶振等级。
【判断题】
分路输出接口箱上电源板指示灯亮黄色表示异常。
【判断题】
时钟网管可以实现对各车站的二级母钟和子钟进行监控。
【判断题】
UPS单元可看成一台稳频稳压电源,输入交流电源经整流后既向蓄电池组充电又向逆变器供电,经逆变器逆变后输出稳定的交流电源。停电时,则由蓄电池组经逆变器向负载供电。
【判断题】
电池的使用寿命与电池工作环境以及循环充放电的频次有关。充放电频率越高,电池使用寿命越短。
【判断题】
接闪器、引下线和接地体受到雷击时,都不会产生很高的电位。
【判断题】
进行电池使用和维护时,应使用绝缘工具。
【判断题】
南京地铁一号线通信用交流屏电流表显示值为三相相电流值,电压表显示为线电压值。
【判断题】
南京地铁一号线通信用交流屏上的电流表出现显示故障时不需要从面板上拆除表盒和表芯,只需要从表盒中拔出表芯更换同型号和量程的表芯即可,更换过程可带电进行。
【判断题】
南京地铁一号线通信用交流屏主监控液晶显示屏屏保后按任意键均可激活。
【判断题】
一号线车站车控室内所有广播控制盒的电源都来自广播机柜。
【判断题】
一号线广播系统,当车站播音控制盒的麦克风出现故障时将无法进行语音广播。
【判断题】
一号线广播系统,功放检测模块主要是收集功放告警信息并控制功放在故障时自动切换备用功放。
【判断题】
在一号线范围内如果发现车站内广播扬声器有三个未工作,则有可能只有一个扬声器出现故障。
【判断题】
打开一号线自动广播计算机的远程协助功能,必须关闭防火墙。
【判断题】
修改一号线自动广播计算机的IP地址,对自动广播系统没有影响。
推荐试题
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
Given the chance to show his ability, he regained [ ]and began to succeed in school
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
The new government has committed to [ ] emissions of greenhouse gases
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
My parents do not object to my taking part-time jobs, but they remind me not to let them [ ] my school work
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
Anger, worry, disappointment, these negative emotions [ ] your heart, brain and body
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
If a person adopts an unhealthy lifestyle, he will surely be [ ]developing diseases.
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
Most people were ready to give up on him when he [ ] of school, but later he returned and earned his degree
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
Drinking too much can increase the risk of developing high blood pressure, which [ ] can lead to heart attack or stroke
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
Low-cost airlines are emerging all over Asia; this will [ ]the development of the worlds air-travel market as a whole
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
When you move to a new country, you may find the food there strange and you may miss the familiar smells of the food [ ] in your country
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
Although he kept trying and failing, I always [ ] the belief that he would succeed one day.
【填空题】
take a toll on,in other words ,drop out,in turn ,at risk (of) ,interfere with,be accustomed to, contribute to,cut back on ,hold on to
The tax only affects people with an annual income over $200,000-[ ], it will only attect the very rich.
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Studies[ ]that children who often take part in cooperative programs benefit a lot more than other children
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
They are such a(n) [ ] family- they must have been shocked when their son dyed(染) his hair pink,
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Testing students by examinations has long been regarded as a reliable way to [ ]students'ability
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Many power stations have been modernized to give off less pollution, or they were moved further away from the living areas in order to [ ] the damage,
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Unemployment has come down slightly, but this does not [ ]the fact that it is still a major problem
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Mr. Smith is not doing well; the doctor told us that several colds [ ]his health
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
The best way to deal with problems at home is to talk things out calmly and honestly and try to reach a(n) [ ]
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Experts say our company is amazing in that sales have been increasing steadily [ ]
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
After 10 years of full-time training, she has,finally [ ] as a professional dancer.
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
[ ], what is the point in taking part in the competitive event if the result is only to prove how incompetent you are?,
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
Redecorating the house is a challenging task. It's necessary to [ ] the wallpaper first.
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
I never really had any problems with change. On the contrary, I welcome change [ ]
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
A lot of what we [ ] is made from raw materials which are not renewable
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
Megan and John realized that their house was too messy for a new baby, so they decided to [ ] their house before the baby was born
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
Jennifer couldn't [ ] her tears when she saw the sick children at a new blood cancer center in Virginia
【填空题】
make it, with open arms ,strip off,keep back,
free of/ from ,after all,straighten up, throw away
We want to give all children a world [ ] violence
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
Fortunately, the accident didn't [ ] many people, for there was little traffic at that hour.
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
She[ ] her ambition of becoming a fashion designer after years of hard work
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
They kept on trying their best to develop
their business, but in such [ ]market competition, they had no Idea if success would come along one day
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
As music plays an important role in our life, many music teachers and educators [ ] taking up a musical instrument at a young age
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
This rule should be entirely clear in the minds of everyone and should not be misunderstood under any [ ]
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
My daughter was shy; she was afraid to ask questions,[ ] to questions in class,or talk with other children
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
I got from him only a letter, which was put on my office desk; [ ] to the receipt of this letter I have never heard from him
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
The duties to provide services for children in need are not [ ] to the local social services department
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
We pray that all nations be [ ] and that all people around the world live in peace
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
It was reported the president had [ ]to fight If war was necessary,even if it meant destroying his chances of re-election
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
I had to [ ] one of my email accounts as it was filled with junk mail
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Darwin's theory of evolution remains[ ] partly because it challenges the religious belief that God created man
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
He suggested a small but [ ] improvement on our former plan; I really appreciate it.