【单选题】
高空作业：凡在距离地面___m以上处所进行的接触网检修、检查作业，均称为接触网高空作业。
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相关试题
【单选题】
作业车旋转工作台端部承受负荷不大于___kg，作业车移动时、工作台升降及旋转过程中严禁有人在爬梯上下。
A. 200
B. 300
C. 250
D. 400
【单选题】
验电接地人员在接到___验电接地命令后，在工作票规定位置迅速进行验电接地。
A. 工班长
B. 安全员
C. 作业组中最高级别人员
D. 施工负责人
【单选题】
通路功能测试：利用兆欧表等产生___V电压对验电器整个回路施压检测，验电器报警正常时视为合格，该项作业在出工前提前完成。
A. 300
B. 500
C. 600
D. 800
【单选题】
验电及装设接地线时，人体不得触及验电器引线及接地线。接地线采用截面不小于___mm2的软铜绞线，验电器引线及接地线不得有断股、散股和接头。
A. 50
B. 70
C. 100
D. 150
【单选题】
安全距离：在进行停电作业时，作业人员及工器具材料与周围裸露带电设备的距离不得小于：33～35kV为1000mm；10kV以下为___mm；直流1500V为（D）mm。
A. 1000、700
B. 1000、1000
C. 700、1000
D. 700、700
【单选题】
用梯车进行接触网作业时，工作台上的人员不得超过___名；使用组合架作业时，工作台上的人员不得超过（B）名。推扶梯车（组合架）人员必须服从台上作业人员的指挥，推行速度不得超过5km/h，并不得发生冲击和急剧起停车。
A. 2、2
B. 2、3
C. 3、3
D. 3、2
【单选题】
接触网梯车（组合架）存放时要采用地桩并锁固良好，防止梯车（组合架）在隧道活塞风作用下移位；梯车（组合架）不得侵入行车限界，限界不得小于___mm；禁止梯车（组合架）直接接触在回流钢轨上；梯车（组合架）不得同时触碰钢轨与电缆、消防水管等接地体或迷流端子；梯车（组合架）要每（B）个月检查1次并填写《梯车检查记录》。
A. 1800、2
B. 1900、3
C. 1800、3
D. 1900、2
【单选题】
推扶梯车推行速度不得超过___km/h，作业车组移动速度不得超过（C）km/h。
A. 5、5
B. 10、10
C. 5、10
D. 10、5
【单选题】
远离带电作业：在距离接触网带电部分___米以外设备上进行的作业。
【单选题】
气体灭火防护区域探测器探测到火灾信号并发出报警后，气体释放的延时时___。
A. 60秒
B. 50秒
C. 40秒
D. 30秒
【单选题】
驻站值班人员到岗后必须向车辆段值班人员汇报，车辆段值班人员汇总后向电力调度、___汇报值班地点、值班人姓名、联系方式等信息。
A. 行车调度
B. 上级领导
C. 维修中心生产调度
D. 抢修负责人
【单选题】
驻站值班人员应坚守岗位，在检查驻站材料、添乘巡视设备时必须向___汇报。
A. 行车调度
B. 上级领导
C. 维修中心生产调度
D. 车辆段值班人员
【单选题】
巡视的基本要求：接触网设备的巡视工作，应由___组织接触网工进行。在巡视检查中，对危及安全的缺陷要及时处理，尤其是危及行车及供电的紧急情况，应及时报告电力调度员和专业组工程师，并采取应急措施，确保设备良好地运行和行车安全。
A. 主管工程师
B. 包保工程师
C. 工班长
D. 施工负责人
【单选题】
接触网小修工作由___实施。
A. 供电车间
B. 供电车间接触网专业组
C. 供电车间接触网工班
D. 供电车间接触网工班作业组
【单选题】
2号线接触网管辖范围内设备巡视的基本规定：赤湾-新秀段正线（含辅助线、联络线）每___月不少于1次梯车、工程车或步行巡视，每月不少于1次登乘巡视；蛇口西车辆段及后海停车场每(D)周不少于1次步行巡视，每月不少于1次梯车或工程车巡视。
A. 2、2
B. 3、3
C. 2、3
D. 3、2
【单选题】
分段绝缘器检修周期为：折返线分段绝缘器___个月，渡线、备用线、存车线分段绝缘器（A）个月。
A. 3、6
B. 6、12
C. 6、6
D. 3、12
【单选题】
隔离开关检修周期为：常动:馈线上网开关正线___个月，车场（ ）个月。
A. 3、6
B. 6、12
C. 6、6
D. 3、12
【单选题】
停电作业时，每名监护人的监护范围，刚性悬挂检修不超过___个跨距，柔性悬挂检修不超过2个跨距，在同一组硬横梁（或软横跨）上作业时不超过（B）条股道，在相邻线路同时进行作业时，要分别派监护人员各自监护。
A. 2、2
B. 4、4
C. 4、2
D. 2、4
【单选题】
值班人员要认真填写《接触网工班值班日志》，及时传达和执行___的命令。
A. 上级领导、电力调度
B. 上级领导、维修中心生产调度
C. 电力调度、维修中心生产调度
D. 电力调度、行车调度
【单选题】
刚性拉出值及导线高度检修周期为___个月。
【单选题】
汇流排及中心锚结检修周期为___个月。
【单选题】
刚性支持、定位装置、架空地线检修周期为___个月。
【单选题】
均回流、单向导通装置检修周期为___个月。
【单选题】
避雷器、放电间隙检修周期为：___。
A. 每年1次
B. 每年2次
C. 每年3次
D. 视情况而定
【单选题】
绝缘子及其它设备清扫周期为___个月。
【单选题】
蛇口西车辆段柔性线岔检修周期为___个月。
【单选题】
蛇口西车辆段柔性分段绝缘器检修周期为___个月。
【单选题】
蛇口西车辆段柔性接触线拉出值、导线高度检修周期为___个月。
【单选题】
蛇口西车辆段柔性补偿装置检修周期为___个月。
【单选题】
蛇口西车辆段支柱及硬横梁检修周期为___个月。
【单选题】
接触网小修完毕后，检修或测量人员应认真填写上述各项记录。接触网技术组包保工程师对包保管段内接触网小修任务完成情况及其质量要___进行检查，并在检修记录上签字确认。
A. 每半个月
B. 每月
C. 每季度
D. 每半年
推荐试题
【单选题】
You have just installed an ESXi 6.x Host. As part of your company security regulations, a security banner must be presented on the console of the host. How can this action be accomplished?___
A. Configure the Advanced Settings > Annotations screen of the ESXi host.
B. This is configured from the Direct Console User Interface configuration menu.
C. It is not possible to configure a security banner for the ESXi host.
D. From vCenter Server, this setting is configured globally in the vCenter Server configuration.
【单选题】
An administrator is only able to see the Health Badge when using the vRealize Operations user interface. What is the likely cause of this behavior?___
A. The vRealize Operations Foundation License is in use.
B. The vmware-sps service failed to start.
C. The vRealize Operations Standard License is in use.
D. The vmware-rbd-watchdog service failed to start.
【单选题】
An administrator has configured an alarm to be notified when a virtual machine meets either of these conditions: <High virtual CPU> <High active memory consumption.> <The alarm is only triggering when both of the conditions are met.> What can be done to correct the alarm behavior?___
A. Edit the alarm and select Trigger if ANY of the following conditions are satisfied.
B. Edit the alarm and select Trigger if ALL of the following conditions are satisfied.
C. Create two separate alarms, one for CPU and one for memory and link them together with ESXCLI.
D. Delete the existing alarm and create a new event based alarm.
【单选题】
An administrator creates an ESXi cluster using vSphere Auto Deploy. The ESXi hosts are configured to get a management IP address from a DHCP server. The administrator needs to troubleshoot the management network on one of the hosts. Which DCUI option should the administrator use to renew the DHCP lease? ___
A. Restart Management Network
B. Restore Network Settings
C. Test Management Network
D. Configure Management Network
【单选题】
An administrator is attempting to restore a number of files in a directory within the Operating System of a virtual machine. How can the administrator restore the files from a previous backup? ___
A. Use the File Level Restore option from the selected backup of the virtual machine in the vSphere Web Client.
B. Connect to the File Level Restore tool from a web browser in the virtual machine.
C. Connect to the File Level Restore tool from the VMware
D. ata Protection appliance.
【单选题】
After selecting an object in vRealize Operations, how can a user compare the badge values of related child objects? ___
A. Use the Scoreboard tab
B. Use the Relationship tab
C. Use the Members tab
D. Use the Overview tab
【单选题】
You want to deploy a vApp and dynamically assign IP addresses without a DHCP server on the network. Which action would you take to accomplish this task? ___
A. Enable IP pools.
B. Configure a local DHCP server in the vApp.
C. Enable NAT on the vApp router.
D. Configure the guest OS for workgroup and WINS.
【单选题】
What is the optimal configuration when building a virtual machine for a single-threaded Windows application? ___
A. Deploy single-threaded applications on uniprocessor virtual machines.
B. Deploy single-threaded applications on symmetric multi-processor virtual machines.
C. Tune single-threaded applications to take advantage of symmetric multi-processor resources.
D. Tune Single-threaded applications at the hypervisor level.
【单选题】
An administrator has created the resource pool configuration shown in the Exhibit. Based on the exhibit, which virtual machine(s) can be successfully powered on? ___
A. VM-M1 only
B. VM-K1 only
C. VM-K1 and VM-K2 only
D. VM-K1, VM-K2, and VM-M1
【单选题】
Which vSphere 6 Enterprise Edition feature will allow an organization to ensure that critical multi-threaded applications have the maximum possible uptime? ___
A. Fault Tolerance
B. High Availability
C. Distributed Resource Scheduler
D. App HA
【单选题】
An administrator has a virtual machine that requires four times the compute resources than other virtual machines on the same ESXi 6.x host. How should the administrator configure the virtual machine settings, in order to be prepared for any resource contention? ___
A. Set the shares of the priority virtual machine to High and the rest to Low.
B. Set the shares of the priority virtual machine to High.
C. Set the shares of the priority virtual machine to High and the rest to Normal.
D. Set the shares of the priority virtual machine to Normal and the rest to Low.
【单选题】
Which type of Adapter does not require vmkernel networking? ___
A. Independent Hardware iSCSI Adapter
B. Dependent Hardware iSCSI Adapter
C. Software iSCSI Adapter
D. Software FCoE Adapter
【单选题】
During the installation of ESXi 6.0, the following error message is reported: Hardware Virtualization is not a feature of the CPU, or is not enabled in the BIOS. Which condition would generate this message? ___
A. LAHF/SAHF is not enabled in the BIOS.
B. NX/XD is not enabled in the BIOS.
C. SSE3 is not enabled in the BIOS.
D. Hyperthreading is not enabled in the BIOS.
【单选题】
An administrator is unable to login to vCenter Server when using the vSphere web client. The administrator successfully accessed vCenter Server using the client earlier the same day. What is the most appropriate first step the administrator should take to resolve this issue? ___
A. Verify the web browser being used has Adobe Flash plugin version 11.5 or later
B. Verify the vCenter Single Sign-On service is running on the vCenter Server
C. Verify the vSphere Web Server service is running on the vCenter Server
D. Verify the administrator has permissions configured in vCenter Server
【单选题】
An administrator has configured an alarm to be notified when a virtual machine meets two conditions: <high virtual CPU> <high active memory consumption> The alarm is malfunctioning and triggering when either condition is met instead of both. What can be done to correct the issue? ___
A. Edit the alarm and select Trigger if ALL of the following conditions are satisfied.
B. Edit the alarm and select Trigger if ANY of the following conditions are satisfied.
C. Create two separate alarms, one for CPU and one for memory.
D. Delete the existing alarm and create a new event based alarm.
【单选题】
What must be enabled to ensure that VM Component Protection (VMCP) works in a High Availability cluster? ___
A. VMware Tools Virtual Machine Communication Interface (VMCI)
B. Fault Tolerance
C. Atomic Test and Set (ATS)
D. All Paths Down (APD) Timeout
【单选题】
An administrator wants to add a web server to an existing multi-tier application consisting of three virtual machines: <A web server> <A database server An application server> The web server should be added to the application when the primary web server reaches: <70% vCPU utilization> <55% active memory> Which option will achieve this result? ___
A. Create a virtual machine alarm with an action to run a script that starts a new instance of the web server.
B. Create a host cpu and memory alarm with an action to run a script that starts a new instance of the webserver.
C. Configure HA application monitoring for the web server and set it to trigger deployment of a new instance of the web server.
D. Configure Fault Tolerance on the virtual machine and leave the secondary machine disabled until needed.
【单选题】
An administrator has an application that requires connection directly to PCI devices through a virtual machine. What is a limitation of this configuration? ___
A. Devices must be reserved for PCI passthrough on at least one host on which the virtual machine will run.
B. Snapshots are not supported with DirectPath I/O passthrough devices.
C. A maximum of 18 PCI vSphere
D. irectPath devices can be added to a virtual machine.
【单选题】
The vSphere administrator is configuring directory services for an ESXi host: What should the vSphere administrator do to configure the host to use CAM services? ___
A. Check the Use vSphere Authentication Proxy checkbox.
B. Set Select Directory Service Type to CAM services.
C. Specify CAM$ for the
D. omain.
【单选题】
Which statement is true regarding the licensing of vCenter Server? ___
A. The license for vCenter Server must be provided at the time of installation.
B. Changing the license assigned to vCenter Server requires a restart of the vCenter Server service.
C. Virtual machines can still be powered on if the vCenter Server license expires.
D. Licensing for a single vCenter Server installation is determined by the number of managed virtual machines.
【单选题】
When configuring vSphere Replication for a virtual machine, what is the lowest Recovery Point Objective (RPO) that can be selected? ___
A. 1 min
B. 5 min
C. 10 min
D. 15min
【单选题】
A developer needs to create a multi-tier development stack for a home lab. Which vSphere product will support the architecture required for the least software cost? ___
A. vSphere Hypervisor
B. vSphere Essentials
C. VMware Player
D. VMware Workstation
【单选题】
An administrator is installing Windows into a virtual machine. The DVD has been mounted on the Host and configured for the virtual machine as shown in the Exhibit. Based on the exhibit, when the virtual machine is booted, why would it attempt to search for a PXE server? ___
A. The CD/DVD device is not connected.
B. The ISO is in the incorrect storage location.
C. The OS minimum requirements have not been met.
D. The CD/DVD device is not set to Client Device.
【单选题】
What component must be installed prior to deploying a vCenter Server in vSphere 6.x? ___
A. vCenter Identity Services
B. Platform Services Controller
C. vCenter Single Sign-On
D. Client Integration Plug-In
【单选题】
What is a valid plug-in status for a plug-in that has been added to a vSphere client? ___
A. Disabled
B. Unknown
C. Stopped
D. Installed
【单选题】
Users of an application are reporting performance issues. The following performance values are observed in the vSphere Web Client: <Host CPU utilization is 90%> <Virtual Machine memory utilization is consistently greater than 90% CPU Ready values are higher than 20%> What could be the cause of the application performance issue? ___
A. The host is lacking the CPU resources required to meet the demand.
B. The host is lacking the memory resources required to meet the demand.
C. The virtual machine is lacking the CPU resources required to meet the demand.
D. The virtual machine is lacking the memory resources required to meet the demand.
【单选题】
An administrator creates an ESXi cluster using vSphere Auto Deploy. The ESXi hosts are configured to get a management IP address from a DHCP server. The administrator needs to troubleshoot the management network on one of the hosts. Which DCUI option should the administrator use to renew the DHCP lease? ___
A. Restart Management Network
B. Restore Network Settings
C. Test Management Network
D. Configure Management Network
【单选题】
An administrator is re-provisioning an ESXi host and moving it to another datacenter. Which DCUI option should the administrator use to revert the system configuration to the default settings? ___
A. Reset System Configuration
B. Rebuild Default System Configuration
C. Revert System Configuration
D. Renew Default System Configuration
【单选题】
An administrator has just completed installing an ESXi 6.x host, but doesn't know what address has been configured. Where is the ESXi host IP address configured? ___
A. RVC console
B. Direct Console User Interface
C. vSphere Web Client
D. vSphere Client
【单选题】
When is it possible to place a VMFS5 datastore in maintenance mode? ___
A. When it is a member of a Storage DRS cluster
B. When it is a member of Virtual SAN cluster
C. When it is a member of a multi-extent datastore
D. When it is a member of a Virtual Volume
【单选题】
Immediately after installing ESXi, an administrator observes that the Configure Lockdown Mode option is grayed out in the Direct Console User Interface (DCUI). What is the most likely explanation? ___
A. The host has not yet been added to a vCenter Server.
B. The BIOS on the host does not have NX/XD enabled.
C. The ESXi host is running in evaluation mode.
D. The host requires a reboot before this feature is available.
【单选题】
Immediately after installing ESXi, an administrator observes that the Configure Lockdown Mode option is grayed out in the Direct Console User Interface (DCUI). What is the most likely explanation? ___
A. The host has not yet been added to a vCenter Server.
B. The BIOS on the host does not have NX/XD enabled.
C. The ESXi host is running in evaluation mode.
D. The host requires a reboot before this feature is available.
【单选题】
Which Single Sign-On deployment mode should an administrator use for two 6.x vCenter Servers configured with linked mode? ___
A. Basic Single Sign-On with vCenter Server Heartbeat
B. Multisite Single Sign-On
C. Basic Single Sign-On
D. Single Sign-On with Linked Mode
【单选题】
What is required when changing a virtual machine name using the vSphere Web Client? ___
A. Verify connectivity to the ESXi host where the virtual machine is running and its inventory list is accessible.
B. Verify in which datastore the virtual machine resides and that you have access and its inventory list is accessible.
C. Verify that virtual machine files are stored in the same datastore and can be accessed in the datastore browser list.
D. Verify the virtual machine is not running in Fault Tolerant mode and that it is not in a Distributed Resource Scheduler cluster.
【单选题】
An administrator deploys vRealize Operations into a vSphere 6.x environment. After the deployment, the administrator notices that badges are not appearing. What is a likely cause of this behavior? ___
A. Badges do not appear until you register vRealize Operations with vCenter Server.
B. Badges do not appear until you register a vCenter Server in vRealize Operations.
C. The vRealize Operations appliance needs to be redeployed.
D. The vCenter Server appliance needs to be redeployed.
【单选题】
How are ports scaled on vSphere Standard Switches (vSS)? ___
A. Ports on a vSS can be dynamically scaled up and down.
B. Ports on a vSS can only be statically scaled up or down.
C. Ports on a vSS can only be dynamically scaled down.
D. Ports on a vSS can only be dynamically scaled up.
【单选题】
A High Availability (HA) cluster is configured to respond to a given number of host failures. The cluster contains virtual machines configured with these settings: VM1 has a 1GHz CPU reservation and no Memory reservation VM2 has a 2GHz CPU reservation and no Memory reservation VM3 has no CPU reservation and no Memory reservation . Given this information, what is the correct slot size for the cluster? ___
A. The CPU Reservation should be set to 32MHz and the memory reservation should be set to 32MB plus memory overhead.
B. The CPU reservation should be set to 1 GHz and the memory reservation should be set to 0MB plus memory overhead.
C. The CPU reservation should be set to 2 GHz, and the memory reservation should be set to 0MB plus the virtual machine memory overhead.
D. The CPU reservation should be set to 2 GHz, and the memory reservation should be set to 32MB, plus the virtual machine memory overhead.
【单选题】
An administrator is planning a vSphere infrastructure with the following specific networking requirements: <The ability to shape inbound (RX) traffic> <Support for Private VLANs (PVLANs)> <Support for LLDP (Link Layer Discovery Protocol)>. What is the minimum vSphere Edition that will support these requirements? ___
A. vSphere Essentials Plus
B. vSphere Standard
C. vSphere Enterprise
D. vSphere
E. nterprise Plus
【单选题】
When you add an ESXi 6.x host to a new Cluster, which vSphere object owns the CPU and Memory resources of the hosts? ___
A. vCenter Server
B. Datacenter
C. Cluster
D. Host
【单选题】
A user is trying to retrieve objects from a SharePoint server and finds the request is taking an excessive amount of time. An administrator tries to isolate the issue and notes the following: Application performance is poor when compared to virtual machines on other hosts. Performance improves when the virtual machine is moved to another host. The virtual machine encounters higher than expected CPU %Ready times. What conclusion can be reached regarding the performance issues for this virtual machine? ___
A. Host Power Management is directly impacting virtual machine performance.
B. The virtual machine has a large number of snapshots.
C. The Path Selection Policy for the storage device is set differently on the affected host.
D. Network I/O control is configured for the portgroup.
