【判断题】
大电流接地系统指所有的变压器中性点均直接接地的系统。
A. 对
B. 错
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答案
B
解析
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工作票必须经批准的工作票签发人审核签发,特殊情况下可以电话签发或代签发。
A. 对
B. 错
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发现火灾迅速拔打火警电话119。报警时要讲清详细地址、起火部位、着火物质、火势大小、报警人姓名及电话号码,并派人到路口迎候消防车。
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某线路发生故障,若是事故抢修,可以不挂接地线进行工作。
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B. 错
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保证安全的技术措施是(1)停电;(2)验电;(3)装设接地线;(4)悬挂标示牌和遮拦。
A. 对
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电气设备检修工作间断后,次日复工时,若安全措施没有改变,工作负责人无需通过值班员许可,可以进入工作地点继续工作。
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B. 错
【判断题】
操作中发生疑问时,应立即停止操作并向值班负责人报告,必要时由值班负责人向当值值班调度员报告,弄清问题后再进行操作,严禁擅自更改变电操作票。
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B. 错
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工作中需要扩大工作任务时,必须重新填写新的工作票。
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B. 错
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在事故处理或进行倒闸操作时,不得进行交接班,交接班时发生事故,应立即停止交接班,并由交班人员处理,接班人员在交班值长指挥下协助工作。
A. 对
B. 错
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电气设备灭火时,可以使用泡沫灭火器。
A. 对
B. 错
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严禁工作人员在工作中移动或拆除围栏、接地线和标示牌。
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B. 错
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变压器硅胶受潮变粉红色。
A. 对
B. 错
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接地线应用多股软裸铜线,其截面应符合短路电流的要求,但不得小于15mm2。
A. 对
B. 错
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允许使用隔离开关拉合带负荷设备、线路以及空载主变。
A. 对
B. 错
【判断题】
隔离开关可以切无故障电流。
A. 对
B. 错
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变压器压力式温度计所指温度是绕组温度。
A. 对
B. 错
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瓦斯保护范围是变压器的外部。
A. 对
B. 错
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系统电压220V是指三相四线制接线中相线对地电压。
A. 对
B. 错
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变电站使用的试温蜡片有60℃、70℃、80℃三种。
A. 对
B. 错
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红灯监视断路器的跳闸回路,绿灯监视断路器的合闸回路。
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直流高速开关向触网供电时,允许直接合闸。
A. 对
B. 错
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低电压带电作业时,应先断开零线,再断开火线。
A. 对
B. 错
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绝缘油的耐压强度与油中含水水分、油劣化产物和机械混合物有关。
A. 对
B. 错
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装设接地线必须先接导体端,后接接地端。
A. 对
B. 错
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铁轭是指铁心中不套线圈的部分。
A. 对
B. 错
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仪表的准确度等级越高,基本误差越小。
A. 对
B. 错
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用电压表测量电路中某两点电压时,须把电压表并在这两点间。
A. 对
B. 错
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离地面5m以上才使用安全帽。
A. 对
B. 错
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交流单芯电力电缆不准穿入钢管敷设。
A. 对
B. 错
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变压器工作时,高压绕组的电流强度总是比低压绕组的电流强度大。
A. 对
B. 错
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如误把电流表与负载并联,电流表将烧坏。
A. 对
B. 错
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当35KV变压器温度升到110。C以上时,风机应能自动开启。当温度降到80。C以下时,风机应能自动关闭。
A. 对
B. 错
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牵引站对触网采用双边供电方式是为了提高供电可靠性,减少迷流的产生。
A. 对
B. 错
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主变发生变压器差保护动动作,导致一段母线失压,由于该失压是因故障保护动作跳闸引起,所以对应的分段开关不会启动自切合闸。
A. 对
B. 错
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框架保护是针对列车安全运行而设置的一种保护。
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金属氧化物避雷器由火花间隙和并联电阻串联而成。
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新安装的蓄电池注完电解液而未充电前,没有化学反应,电动势为零。
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在10~25℃范围内,温度越高,铅酸蓄电池的容量越低。
A. 对
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蓄电池在充电时有可燃气体逸出,所以电池室内严禁吸烟。
A. 对
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蓄电池的核对容量放电可以不定期进行。
A. 对
B. 错
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直流屏控制母线输出是变电站电力系统的直流工作电源 。
A. 对
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Which two statements are correct when turning off a Distributed Resource Scheduler (DRS) Cluster? (Choose two.)___
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Which three features can be enabled for a new host cluster? (Choose three.)___
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Your manager has given you a bash script that retrieves data for ESXi 6.x host configurations. This data needs to be collected right after the installation of a host and must be run directly on the host. Which two actions can be used to run this script on an ESXi host? (Choose two.)___
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What are two benefits of using NFS 4.1 with vSphere 6.x as compared to NFS 3? (Choose two.)___
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【多选题】
Which two statements are true regarding VMware vSphere Flash Read Cache (vFRC)? (Choose two.)___
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D. Cache fills and cache evictions happen in the granularity of the disk block size.
【多选题】
What are two possible causes of Storage Distributed Resource Scheduler (SDRS) being disabled on one or more virtual machine disks in a datastore cluster? (Choose two.)___
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An administrator attempts to install vCenter Single Sign-On Server. The installer returns an error message indicating that the installation failed. Prior to the installation, all setup prerequisites were met. The administrator has generated a vCenter Server Single Sign-On support bundle. Which two files should the administrator analyze to determine the cause of the failure? (Choose two.)___
A. Server\utils\logs\imsTrace.log
B. Server\utils\logs\install.txt
C. %TEMP%\utils\logs\vminst.log
D. %TEMP%\vminst.log
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An administrator is unable to remove an ESXi 6.x host from a vSphere Distributed Switch. What are two likely reasons for this issue? (Choose two.)___
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B. VM Network port group adapters are connected to different switch.
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D. VM Network adapters are connected to this switch.
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【多选题】
What are three goals of resource management within a cluster? (Choose three.)___
A. To prevent virtual machines from monopolizing resources and to guarantee predictable service rates.
B. To exploit undercommitted resources and overcommit with graceful degradation.
C. To provide solutions to potential problems that you might encounter when using vCenter Server.
D. To control the relative importance of virtual machines and provide flexible dynamic partitioning.
E. To provide additional network administration capabilities.
【多选题】
Which three actions can be taken as a result of executing the vSphere Update Manager 6.x scan and remediation wizards? (Choose three.)___
A. Install and upgrade software in virtual machines.
B. Upgrade the firmware on ESXi host devices.
C. Upgrade and Patch ESXi hosts.
D. Install and update third-party software on hosts.
E. Upgrade virtual machine hardware.
【多选题】
Which two statements are true about deploying and using vSphere Replication? (Choose two.)___
A. ESXi hosts managed by a single vCenter Server instance require a connection between the two vSphere Replication appliances.
B. Sites managed by different vCenter Server instances require a connection between the two vSphere Replication appliances.
C. Sites managed by different vCenter Server instances require the use of Site Recovery Manager and a connection between the two vSphere Replication appliances.
D. ESXi hosts managed by a single vCenter Server instance require a single vSphere Replication appliance.
【多选题】
An administrator is attempting to power on a virtual machine, but the task is hanging at 95%. What three scenarios best explain why this problem is happening? (Choose three.)___
A. A virtual machine question is currently being posed to the administrator.
B. Another task for the virtual machine or other component is already in progress.
C. The VMware High Availability cluster has insufficient resources to guarantee failover.
D. The host has lost access to the storage device containing the virtual machine files.
E. The host is under resource contention and unable to power on the virtual machine.
【多选题】
Which three features are not supported when using Fault Tolerance in vSphere 6.x? (Choose three.)___
A. Virtual Volumes (VVOLS)
B. Storage vMotion
C. Virtual Machine Component Protection
D. vMotion
E. vSphere Distributed Switches
【多选题】
Which two storage controller configurations can be used with Virtual SAN? (Choose two.)___
A. SAS controllers in Passthrough mode
B. SAS controllers in RAID0 mode
C. SAS controllers in RAID1 mode
D. SAS controllers in RAID10 mode
【多选题】
Which three are requirements when using vMotion to move a virtual machine across vCenter Server systems? (Choose three.)___
A. Both vCenter Servers must be using Enhanced Linked Mode.
B. Both vCenter Servers must be in the same Single Sign-On Domain.
C. Time must be synchronized.
D. Duplicate VM MAC addresses must be configured.
E. Both vCenter Servers must have High Availability enabled on source and destination clusters.
【多选题】
Which two components can be used when configuring Enhanced Linked Mode? (Choose two.)___
A. vCenter Server Appliance
B. vRealize Operations Manager
C. vSphere Management Appliance
D. vCenter Server for Windows
【多选题】
An organization has a number of virtual machines that would benefit from Fault Tolerance. These include: <A single vCPU Apache Server> < A dual vCPU vCenter Server> < A quad vCPU SQL Server> <An eight vCPU Hadoop Server>. Which two virtual machines can be configured to use VMware Fault Tolerance? (Choose two.)___
A. Apache Server
B. vCenter Server
C. SQL Server
D. Hadoop Server
【多选题】
Which two badges are major badges in vRealize Operations? (Choose two.)___
A. Risk
B. Efficency
C. Workload
D. Faults
【多选题】
An administrator is deploying multiple Windows 2003 Virtual Machines from the same template. What two steps should be taken to avoid network conflicts? (Choose two.)___
A. Customize the guest operating system.
B. Install VMware Tools into the new virtual machines.
C. Copy the Microsoft Sysprep tools onto the vCenter Server system.
D. Ensure the e1000 vmnic is selected for each new virtual machine.
【多选题】
Which three conditions would prevent Storage I/O Control from being enabled on a group of datastores? (Choose three.)___
A. The datastores planned for the solution are used by different vSphere clusters.
B. A datastore planned for the solution is configured as a Raw Device Mapping file.
C. A datastore planned for the solution has three extents.
D. A datastore planned for the solution is configured as NFS.
E. The organization has an Enterprise license.
【多选题】
Which two actions are prerequisites to adding ESXi 6.x hosts to a vSphere Distributed Switch? (Choose two.)___
A. Verify that there is at least one Distributed Port Group on the Distributed Switch.
B. Verify that the Distributed Port Group have active uplinks configured in its teaming and failover policy.
C. Verify that the
D. istributed Switch has been configured with a Network Profile.
【多选题】
An organization has configured Distributed Power Management (DPM) on a vSphere 6 cluster. The organization wants to be alerted when an ESXi host has been powered down by DPM. Which two options represent the type and name of the alarm that would accomplish this? (Choose two.)___
A. DrsEnteringStandbyModeEvent
B. DrsEnteredStandbyModeEvent
C. Event-based
D. Condition-based
【多选题】
Which two allow for the disabling of Network Rollback operations? (Choose two.)___
A. Modifying the vpxd advanded configuration options and adding the config.vpxd.network.rollback key
B. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the<rollback> xml tag
C. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the <networkrollback> xml tag
D. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\firstboot\vpxd-service- spec.prop file and adjusting the <rollback> xml tag
【多选题】
An administrator is tasked with performing a vMotion migration of a virtual machine. The virtual machine is configured as follows: <vSphere Flash Read Cache (vFRC) enabled> <Is part of a Distributed Resource Cluster (DRS) Cluster> Which two statements are true? (Choose two.)___
A. Each ESXi host in the cluster supports multiple virtual flash resources.
B. Each ESXi host in the cluster supports one virtual flash resource.
C. DRS treats powered-on virtual machines with Flash Read Cache as having a preferred affinity to their current host and moves them only for mandatory reasons.
D. DRS treats powered-on virtual machines with Flash Read Cache as having a required affinity to their current host and does not move them.