【判断题】
2号线线正线2S05供电臂的供电区间范围是(世界之窗—深康上行)
A. 对
B. 错
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答案
B
解析
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【判断题】
湾厦备用线由2X03供电臂供电
A. 对
B. 错
【判断题】
科苑站联络开关:科13、科23依次是常闭和常开开关。
A. 对
B. 错
【判断题】
福田站联络开关:福13、福23依次是常闭和常开开关。
A. 对
B. 错
【判断题】
安托山站联络开关:安13、安23依次是常闭和常开开关。
A. 对
B. 错
【判断题】
新秀站联络开关:新13、新23依次是常闭和常开开关。
A. 对
B. 错
【判断题】
所有接触网设备,自第一次受电开始即认为带电设备。
A. 对
B. 错
【判断题】
在进行接触网作业时,必须戴安全帽,穿工作服、绝缘鞋和荧光衣,高空作业必须系好安全带。
A. 对
B. 错
【判断题】
雷电时可视情况在露天接触网上进行作业。
A. 对
B. 错
【判断题】
接触网高空作业时工具、零部件和材料等不得抛掷传递,长大物料上下时有必要时使用绳索平吊。
A. 对
B. 错
【判断题】
施工负责人和推扶梯车(组合架)人员,要时刻注意和保持梯车(组合架)的稳定。曲线和大风天气作业时,应采取防止倾倒措施;在大坡道作业时必须采取防滑移措施。
A. 对
B. 错
【判断题】
梯车(组合架)放在道床、路肩上,或作业人员超出工作台范围作业时,作业人员要将安全带系在接触网上,必要时系在梯车(组合架)工作台框架上。
A. 对
B. 错
【判断题】
用梯子进行接触网作业时,作业人员要先检查梯子是否牢靠。梯子上可以有2人作业。作业人员上下梯子或在梯上作业时,梯脚要放稳固并设专人扶梯,严防滑移。
A. 对
B. 错
【判断题】
作业时应关好工作台的防护门;在工作台外作业时,必须系好安全带。
A. 对
B. 错
【判断题】
接触网带电时严禁登上作业车工作台。
A. 对
B. 错
【判断题】
作业车组移动过程中,工作台上人员可以站立,但要注意避让设备。
A. 对
B. 错
【判断题】
验电前只需对验电器(含引线)外观检查,并对验电器进行通路、报警功能测试。
A. 对
B. 错
【判断题】
报警功能测试:通路功能测试及现场验电前需按一下验电指示器的自检按钮,指示器发出间歇式声光指示信号,证明验电器完好,(放电棒使用及检查参照验电器)。
A. 对
B. 错
【判断题】
用验电器验电的顺序是:将验电器接地线分别与验电器及钢轨连接;然后将验电器端头轻靠接触网接地挂环,无响声则为已停电。
A. 对
B. 错
【判断题】
当验明接触网已停电后,须在已验电的接地挂环上接挂地线。
A. 对
B. 错
【判断题】
验电和装设、拆除接地线,必须由二人进行,一人操作一人监护。
A. 对
B. 错
【判断题】
作业中如遇有梯车(组合架)必须要经过地线时,该地线保护范围内,所有作业人员无须下梯车(组合架)停止检修作业即可,待梯车(组合架)通过后再按原位接挂地线。
A. 对
B. 错
【判断题】
隔离开关上网电缆及隔离开关刀闸检修作业时,需确认变电所内直流小车已拉到试验位及在静触头接地挂环处挂接地线。检修完毕后,检查确认隔离开关刀闸状态。
A. 对
B. 错
【判断题】
接触网:沿地铁线路上空架设,直接供给地铁列车电能的特殊输电线路。
A. 对
B. 错
【判断题】
汇流排:在接触网系统中用于夹持、固定接触线,承载和传输电能的铝排装置。
A. 对
B. 错
【判断题】
刚柔过渡装置:接触网由刚性悬挂形式过渡到柔性悬挂形式的转换装置。
A. 对
B. 错
【判断题】
支持和定位装置:用以悬挂汇流排(承力索)、接触线,保证接触线相对地面规定高度的支持和定位设备。
A. 对
B. 错
【判断题】
接触线:是接触悬挂中与受电弓直接接触、带有沟槽、传导电流的铜铝合金导线。
A. 对
B. 错
【判断题】
均流电缆:连接上下行牵引轨及两根钢轨之间的电缆。
A. 对
B. 错
【判断题】
回流电缆:连接牵引轨和变电所负极母排的电缆。
A. 对
B. 错
【判断题】
牵引轨:用来回流牵引电流的钢轨。
A. 对
B. 错
【判断题】
电分段:纵向或者横向将接触网从机械连接上互相分开的电气装置。
A. 对
B. 错
【判断题】
分段绝缘器:用以实现电气分段的专用绝缘装置。
A. 对
B. 错
【判断题】
限界门:为了保证车辆、行人及货物的安全,避免触电事故,在电气化铁道区段的道口设置的一种限高标志,用于限制货物、车辆和行人携带的杆件等的高度。
A. 对
B. 错
【判断题】
隔离开关:在接触网带负荷情况下切断或闭合供电回路,并有可靠断开点的电气设备。
A. 对
B. 错
【判断题】
除遇有危及人身或设备安全的紧急情况,电力调度发布的命令可以没有命令编号和批准时间外,接触网所有的作业命令,均必须有命令编号和批准时间。
A. 对
B. 错
【判断题】
在装设接地线前,需对接地线本体进行检查,接地线导体无严重的烧伤断股现象,绝缘操作杆绝缘良好;操作杆绝缘部分无污垢、损伤、裂纹;各连接点连接紧固无松动。
A. 对
B. 错
【判断题】
在装设接地线时,将接地线的一端先行接地,再将接地线夹紧固在已停电的接地挂环上。拆地线时,先拆钢轨端,再拆连接接触网端。接地线要连接牢固,接触良好。
A. 对
B. 错
【判断题】
接触网检修工作人员实行昼夜值班制度,每班设1名值班人员。
A. 对
B. 错
【判断题】
接触网工班值班人员要按时做好交接班工作。交班人员要向接班人员叙述设备运行情况及有关事项,接班人员认真阅读值班日志,掌握上一班的情况并在值班日志上签字确认后(接班工班不在同一车辆段时可以邮件发送《2号线接触网事务统计表》交接,需电话确认),交班人员方可下班。
A. 对
B. 错
【判断题】
工班长接班后要认真审阅值班日志及《2号线接触网事务统计表》,检查驻站值班人员到岗情况,确认工器具、备品备件、安全用具、抢修机具是否完备,并对组员进行抢修分工。
A. 对
B. 错
推荐试题
【单选题】
Which metric in the Exhibit would identify high latency for a virtual machine operating system?___
A. QAVG/cmd
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C. DAVG/cmd
D. GAVG/cmd
【单选题】
What VM Monitoring setting would ensure that the failure interval for a virtual machine is defined as 120 seconds?___
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【单选题】
The business managers have asked the IT administrator to ensure configuration compliance in the vSphere infrastructure. The IT administrator wants to use Host Profiles to accomplish this, but is unable to do so. Why is the administrator unable to use Host Profiles?___
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【单选题】
What is the result of a “Consolidate” action on a virtual machine?___
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【单选题】
A Telco customer is implementing NFV using vSphere as the virtualization platform. Which feature can help achieve a high packet rate with lower CPU consumption?___
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【单选题】
What is the VMware-recommended best practice for Fibre Channel zoning?___
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【单选题】
How can a vSphere administrator ensure that a set of virtual machines run on different hosts in a DRS cluster?___
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【单选题】
vCenter Server Appliance Instance can be backed up using which Client Interface?___
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【单选题】
What tool can capture network traffic at the uplinks, or vSwitch, or virtual port levels?___
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Which storage feature always requires the use of third-party software on ESXi?___
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【单选题】
An ESXi host's VMCA-Signed certificate has expired. How can the certificate be renewed?___
A. In the vSphere Web Client, browse to the host in question. Click the Manage tab and select settings. Select System and click Certificate, then click the Renew button.
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D. Disconnect the host from vCenter Server and reconnect it.
【单选题】
Which is the correct order for upgrading vSphere components?___
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D. ESXi hosts, vCenter Server, Virtual Machine hardware, VMware Tools
【单选题】
Which iSCSI initiator type can be used with any network interface card?___
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【单选题】
An administrator is attempting to power on a virtual machine with 32GB of memory. The operation fails with the following error: <Could not power on VM: No space left on device> <Checking the space on the virtual machine's datastore, there is 30GB free.> Which action would allow the VM to power on?___
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【单选题】
An administrator attempts to manually reclaim space on thin-provisioned VMFS6 volumes but finds that no additional space is being recovered. Which could be causing this?___
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【单选题】
An administrator has upgraded to vSphere 6.5 and also wants to use Kerberos authentication for NFS. Which can be done to the existing NFSv3 volumes to enable this feature?___
A. Perform a storage rescan on VMFS volumes.
B. Unmount the NFSv3 datastore, and then mount as NFSv4.1 datastore.
C. Nothing. All NFSv3 mounted datastores are upgraded automatically during vSphere upgrades.
D. Perform a scan of new storage devices.
【单选题】
An administrator wants to restore the vCenter Server Appliance 6.5 from backup. Where can this be accomplished?___
A. from the ESXi Host Client
B. from the VMware vSphere Appliance Management Interface
C. from within the VMware vSphere Web Client
D. from the vCenter Server Appliance Installer
【单选题】
The administrator wants to power on VM-K2, which has a 2GHz CPU reservation. VM-M1, VM-M2, and VM-K1 are all powered on. VM-K2 is not powered on. The exhibit shows the parent and child resource reservations. If Resource Pool RP-KID is configured with an expandable reservation, which statement is true?___
A. VM-K2 will be unable to power on because there are insufficient resources.
B. VM-K2 will be able to power on since resource pool RP-KID has 2GHz available.
C. VM-K2 will be unable to power on because only 2GHz are reserved for RP-KID.
D. VM-K2 will receive resource priority and will be able to power on this scenario.
【单选题】
Which is the block size on the VMFS6 datastore?___
A. All small and large file blocks are 8MB.
B. All small and large file blocks are 1MB.
C. Small file blocks are 512KB. large file blocks are 64MB.
D. Small file blocks are 1MB, large file blocks are 512MB.
【单选题】
When installing vCenter Converter Standalone, why must an administrator perform a client-server installation instead of a local installation?___
A. to manage conversion tasks remotely
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D. to hot clone physical or virtual machines
【单选题】
Which is required by vCenter Converter Standalone to convert a physical Red Hat Enterprise Linux 7 machine to a virtual machine?___
A. The Linux machine must be powered off.
B. The Linux machine must have the SSH daemon started.
C. The Linux machine must use a static IP address.
D. The Linux machine must have a fully-qualified domain name.
【单选题】
An administrator is troubleshooting network communications between a vCenter Server and an ESXi 6.5 host. Which log shows the related events between these components?___
A. /var/log/fdm.log
B. /var/log/vpxa.log
C. /var/log/hostd.log
D. /var/log/auth.log
【单选题】
An administrator has recently upgraded from vSphere 6.0 to 6.5, and can no longer see the software iSCSI named vmhba33. Which could be the reason for this?___
A. The upgrade has changed the vmhba name.
B. vSphere 6.5 automates iSCSI configurations.
C. vSphere 6.5 no longer supports software iSCSI.
D. The upgrade has deleted the vmhba.
【单选题】
An administrator is trying to vMotion a VM from his datacenter to a recovery site. Which is the maximum allowed RTT (Round-Trip Time) latency between source and destination host?___
A. 100 milliseconds
B. 150 milliseconds
C. 15 milliseconds
D. 10 milliseconds
【单选题】
Which is required for configuring iSCSI Software Adapter network port binding?___
A. VMkernel of the iSCSI traffic must be load balanced using Route based on IP Hash algorithm.
B. VMkernel of the iSCSI traffic must be load balanced using Route based on Source Virtual Port ID algorithm.
C. VMkernel of the iSCSI traffic must be load balanced using Route based on Source MAC Hash algorithm.
D. VMkernel of the iSCSI traffic must be bound to only one active network adapter.
【单选题】
In vSphere Data Protection 6.1, which is the function of a Backup Verification job?___
A. None. Backup Verification job is not a feature of vSphere Data Protection
B. It is a manual task -Power it on -Verify the guest OS -Check started applications
C. It is an automatic process -Restore a virtual machine -Power it on -Verify that the guest OS is booted by communicating with the Backup Verification agent
D. It is an automatic process -Restore a virtual machine -Power it on -Verify that the guest OC is booted by detecting the VMware ToolsTM "heartbeats"
【单选题】
An administrator has enabled vSphere Distributed Switch Health Check. The hosts connected to that Distributed Switch all display an alert:< vSphere Distributed Switch MTU supported status > .The administrator has all of the VMkernel ports MTU sizes set to 1600. Which action will remedy this problem?___
A. Configure the Distributed Switch to MTU 9100.
B. Disconnect and reconnect the physical network cable.
C. Configure the physical switch to MTU 1600.
D. Disable the Distributed Switch MTU.
【单选题】
Which Host Profile Subprofile configuration is used to configure firewall settings for ESXi hosts?___
A. Advanced Configuration Settings
B. General System Settings
C. Security
D. Networking
【单选题】
Where would a vSphere administrator find general vCenter Server logs on a vCenter Server Appliance?___
A. /var/log/vmware/vpxd/
B. /var/log/messages
C. /etc/vmware-vpx/
D. /var/log/vmware/vsan-health/
【单选题】
An administrator wishes to enable network port mirroring based on source port. Which feature should be enabled?___
A. vSphere standard switch port
B. ERSPAN
C. NSX Virtual Wire
D. VLAN
【单选题】
Which CLI command shows the physical uplink status for a vmnic?___
A. esxcli network ip connection list
B. esxcli network ip neighbor list
C. esxcli network nic get
D. esxcli network nic list
【单选题】
Which is the maximum number of block devices (LUNs) that are supported by ESXi hosts that are running version 6.5?___
A. 1024
B. 512
C. 2048
D. 256
【单选题】
When performing a vCenter Server 5.5 for Windows with Microsoft SQL Server Express database migration to vCenter Server Appliance 6.5, which will be the target database?___
A. Microsoft SQL Server Express 2012R2
B. Microsoft SQL Server Standard 2012R2
C. PostgreSQL
D. Oracle DB 11g
【单选题】
An administrator has multiple vCenter Server 6.5 systems but cannot enable Storage I/O Control (SIOC) on a datastore shared by ESXi hosts managed by the vCenter Server systems. Which action should the administrator take to resolve the issue?___
A. Unmount the datastore and then enable SIOC on the vCenter Server system.
B. Configure the datastore to be managed by a single vCenter Server system.
C. Configure Storage DRS and then enable SIOC on the vCenter Server system.
D. Enable Raw Device Mapping (RDM) on the
E. SXi hosts.
【单选题】
“OneAppServer” is a VM template stored in a content library named “LibraryOne”, but the vSphere administrator is not able to use this template for deployment. Why is the administrator unable to deploy OneAppServer?___
A. OneAppServer must be updated before it can be deployed.
B. LibraryOne is a subscribed library and OneAppServer is not downloaded yet.
C. LibraryOne is published and optimized for syncing over HTTP.
D. OneAppServer was imported from a local file on the system.
【单选题】
An administrator sets the Failover Capacity for both CPU and Memory at 25%. Based on the Exhibit below, how much of the cluster’s total CPU resources are still available to power on additional virtual machines?___
A. 45%
B. 25%
C. 70%
D. 60%
【单选题】
Which statement applies to the vSphere Replication appliance?___
A. Only one vSphere Replication appliance can be deployed per vCenter Server instance.
B. VMware Tools in the vSphere Replication appliance can be upgraded.
C. A single vSphere Replication appliance can manage a maximum of 4000 replications.
D. vSphere Replication is available only with the vSphere
E. ssentials Plus license.
【单选题】
Which esxcli namespace can a vSphere Administrator use to adjust the queue depth?___
A. esxcli system module parameters
B. esxcli storage core device
C. esxcli system module set
D. esxcli storage core adapter
【单选题】
Which statement regarding datastore clusters meets VMware’s recommended best practices?___
A. Clusters should contain only datastores presented from the same storage array.
B. Clusters should contain only datastores with equal hardware acceleration capability.
C. Clusters should contain only datastores with the same capacity.
D. Clusters should contain only datastores using the same connection method (iSCSI, FC, etc.).
【单选题】
What VM Monitoring setting would ensure that the maximum reset window for a virtual machine is 24 hours?___
A. Medium
B. Low
C. High
D. Normal