【单选题】
25T型客车的逆变器应可靠接地，可能触及的金属部件与___的电阻应不大于0.1
A. 电气元件外露处
B. 外壳接地点处
C. 导线金属暴露处
D. N线
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相关试题
【单选题】
运用客车中集便装置中真空便器中冲水装置须作用良好，冲水时间约___
A. 1～2 s
B. 2～3 s
C. 3～4 s
D. 4～5 s
【单选题】
25T型客车的逆变器在正常环境条件下，带电电路对地的绝缘电阻应大于___
A. 20 M
B. 10 M
C. 15 M
D. 50 M
【单选题】
运用客车中轴温报警器同车同侧轴温显示温差不超过___
A. 2 ℃
B. 3 ℃
C. 4 ℃
D. 5 ℃
【单选题】
主管段长和车间主任未按规定在“车统—181”上签字不超过2次的，在运用客车质量鉴定中属于管理部分___问题
【单选题】
159.25T型客车的充电器输入输出电路___
A. 必须隔离
B. 必须并联
C. 必须重联
D. 必须有明显标记
【单选题】
运行、检修及交接记录填写错误或漏项不超过3处的，在运用客车质量鉴定中属于管理部分___问题
【单选题】
25T型客车的蓄电池组电压降到92 V±0.5 V时，___应动作
A. 过压保护继电器
B. 欠压保护继电器
C. 过充保护继电器
D. 欠压保护接触器
【单选题】
运用客车整修时，各关键电气部件的接线端子须通电带负载___以上，检测端子温升情况
A. 10 min
B. 20 min
C. 30 min
D. 40 min
【单选题】
MS730CP6C塞拉门是高速旅客列车使用的系列化外摆塞拉门，___之分
A. 无左右
B. 有左右
C. 有上下
D. 无上下
【单选题】
列车运行途中，凡发生断路器自动分闸、熔断器熔断时，应首先确认该___无短路后，方可复位或更换
A. 主回路
B. 干线
C. 支路
D. 其他负载
【单选题】
客车计划性甩挂应提前安排，需补编的车辆应提前___进行技术整备
【单选题】
MS730CP6C塞拉门是高速旅客列车使用的系列化外摆塞拉门，驱动方式为___
【单选题】
运用客车的闸片厚度不小于___，超限时成对更换
A. 2 mm
B. 3 mm
C. 4 mm
D. 5 mm
【单选题】
25型空调控制柜(KLC40C-1T1)的1Q是控制电路的___保护元件
【单选题】
运用客车中密接式车钩缓冲装置，缓冲器的内半筒相对外壳后端面的伸出量不得超过___
A. 2 mm
B. 3 mm
C. 4 mm
D. 5 mm
【单选题】
25K型空调客车的空调控制柜(KLC40C-1T1)能控制___空调机组
A. 2套
B. 1套
C. 全列车
D. 部分车厢
【单选题】
列车在出发前，按规定对列车制动机进行机能试验，在制动保压状态下列车制动主管的压力1 min内漏泄不得超过___，确认列尾装置作用良好
A. 10 kPa
B. 20 kPa
C. 30 kPa
D. 40 kPa
【单选题】
25K型空调客车的空调控制柜(KLC40C-1T1)中的98，100号线是___
A. 温度控制线
B. 集控线
C. 延时控制线
D. 集中供电线
【单选题】
使用车辆紧急制动阀时，在长大下坡道上，必须先看压力表，如压力表指针已由定压下降___时，不得再行使用紧急制动阀，遇折角塞门关闭时除外
A. 50 kPa
B. 100 kPa
C. 150 kPa
D. 200 kPa
【单选题】
25型空调客车的过、欠压继电器的设定值是___
A. 190～230 V
B. 187～253 V
C. 198～260 V
D. 195～240 V
【单选题】
25型空调客车KT1，KT2是___的时间继电器
A. 延时断开
B. 瞬时断开
C. 延时闭合
D. 瞬时闭合
【单选题】
客车运用时，电蒸饭箱自动排气阀开启压力不大于___
A. 0.03 kPa
B. 0.04 kPa
C. 0.05 kPa
D. 0.06 kPa
【单选题】
25K型空调客车的空调控制柜(KLC40C-1T1)中温控仪ATC的设定动差值是___
A. 0.5 ℃
B. 1.5 ℃
C. 1.4 ℃
D. 1.0 ℃
【单选题】
属于运用客车质量鉴定管理部分A类问题的是___
A. 安全号志不清洁
B. 安全号志破损
C. 安全号志无法固定
D. 安全号志失效
【单选题】
25K型空调客车的空调控制柜(KLC40C-1T1)的热继电器FR1是___的过载保护元件
A. 通风机
B. 压缩机
C. 冷凝机
D. 废排风机
【单选题】
压力表、制动软管效验过期在运用客车质量鉴定中属于___故障
【单选题】
25T型客车检修规程对于塞拉门的检修规定：气路系统过滤减压阀调整值须为___
A. 459～612 kPa
B. 550～712 kPa
C. 559～672 kPa
D. 499～712 kPa
【单选题】
盘型制动单元失效在运用客车质量鉴定中属于___故障
【单选题】
折棚风挡破损长度超过___在运用客车质量鉴定中属于C类故障
A. 100 mm
B. 200 mm
C. 300 mm
D. 400 mm
【单选题】
25T型客车检修规程对于塞拉门的门净开度检查规定：气动开启时门的净开度须为___
A. 700～720 mm
B. 710～740 mm
C. 730～750 mm
D. 730～760 mm
【单选题】
25T型客车检修规程对于塞拉门的检修规定：电控方式下开门时，门的单程运行时间须为___
A. 1～8 s
B. 2～5 s
C. 4～8 s
D. 3～8 s
【单选题】
无消防锤在运用客车质量鉴定中属于___故障
【单选题】
25T型客车检修规程对于电动端门的检修规定：DC 110 V或DC 48 V电源电压在___电压波动范围内系统须正常工作
A. －30％～＋25％
B. －40％～＋25％
C. －45％～＋25％
D. －25％～＋30％
【单选题】
25T型客车检修规程对于电动端门的检修规定：电动开门时净开度应大于等于___
A. 500 mm
B. 600 mm
C. 700 mm
D. 800 mm
【单选题】
25T型客车检修规程规定：DC 600 V车下充电机箱检修，充电机工作时输出电压为DC 118～123V，充电限流值为___
A. 25 A±1 A
B. 40 A±1 A
C. 42 A±1 A
D. 45 A±1 A
【单选题】
25T型客车检修规程规定：DC 600 V车下充电机箱检修，充电机工作时输出电压为DC 118～12349/96V，电池欠压保护动作值为___，恢复值为97 V±1 V，欠压电路控制良好
A. 91 V±1 V
B. 93 V±1 V
C. 95 V±1 V
D. 96 V±1 V
【单选题】
25T型客车检修规程规定：DC 600 V车下充电机箱检修，当蓄电池电压为DC 48 V时，充电机工作时输出电压为DC 56～58 V，电池欠压保护动作值为___，恢复值为62 V±1 V，欠压电路控制良好
A. 39 V±1 V
B. 40 V±1 V
C. 42 V±1 V
D. 45 V±1 V
【单选题】
DC 600 V车下充电机箱检修规定：当蓄电池电压为DC 48 V时，充电机工作时输出电压为DC56～58 V，充电限流值为___
A. 8 A±1 A
B. 10 A±1 A
C. 12 A±1 A
D. 14 A±3 A
【单选题】
25T型客车检修规程规定：对于空调试验，满负载运行1 h以上，测量控制柜各接线端子温度须符合以下要求：接线处温度不得高于环温35 ℃或实测温度不得高于___
A. 50 ℃
B. 60 ℃
C. 70 ℃
D. 80 ℃
【单选题】
25T型客车检修规程规定：对于空调试验，同一电器三相接线处温度差不得高于___
A. 15 ℃
B. 20 ℃
C. 25 ℃
D. 30 ℃
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【单选题】
What happens to the status of users already logged into ESXi Shell when a vSphere administrator enables lockdown mode?___
A. Users remain logged in and can run commands, except to disable lockdown mode.
B. Users remain logged in and can run commands, including disabling lockdown mode.
C. Users are immediately logged out of ESXi Shell.
D. Users are logged out after a timeout specified by the vSphere administrator.
【单选题】
What is the effective vSphere licensing level during the 60 day evaluation period?___
A. vSphere Foundation Essentials Plus
B. vSphere Standard
C. vSphere Enterprise
D. vSphere
E. nterprise Plus
【单选题】
To comply with security requirements, an administrator with a vCenter Server Appliance needs to force logoff of the vSphere web client after 10 minutes of inactivity.What should the administrator do to meet the requirement?___
A. Edit: /var/lib/vmware/vsphere-client/webclient.properties, modify session.timeout=10
B. Edit: /opt/vmware/vsphere-client/webclient.properties, modify session.timeout=600
C. Edit: /var/lib/vmware/vsphere-client/webclient.properties modify session.timeout=600
D. Edit: /opt/vmware/vsphere-client/webclient.properties, modify session.timeout=10
【单选题】
An administrator enables High Availability (HA) on a Virtual SAN cluster.Which network is used for HA Network Heatbeat configuration?___
A. The Management network.
B. The vMotion network.
C. The Virtual SAN network.
D. The Provisioning Traffic network.
【单选题】
A user wants to monitor a business-critical virtual machine to ensure that it doesn't run out of resources. What metric could be monitored in vRealize Operations to address this concern?___
A. Time Remaining badge
B. Compliance badge
C. Reclaimable Waste badge
D. Density badge
【单选题】
An administrator has recently installed a new ESXi 6.x Host, and during the configuration notices sporadic network problems. To check whether the issue occurred sometime during the configuration, the administrator would like to reset the system.How can this be accomplished in the shortest amount of time?___
A. Run the ESXi installer again and reinstall the host.
B. Select the Reset System Configuration option from the vSphere Client when connected directly to the host.
C. From the
D. irect Console User Interface, select Reset System Configuration.
【单选题】
A vApp is running out of compute resources when overall activity is high within the resource pool. At other times, everything is fine.What should be done to resolve this issue?___
A. Increase the size of the resource pool Shares.
B. Set the vApp's CPU and Memory Reservation Type to Expandable.
C. Set the vApp's CPU and Memory Limit to Unlimited.
D. Create a new resource pool with the existing hardware configuration.
【单选题】
A virtual machine has been renamed and an administrator is unable to find files with the new virtual machine name in the datastore.What is the reason for this?___
A. The names of the files on the datastore do not change.
B. The names of the files on the datastore have been corrupted.
C. The virtual machine needs to be re-added to the inventory.
D. The Distributed Resource Scheduler moved the virtual machine to another host.
【单选题】
An administrator has configured network connectivity for a new virtual machine, as shown in the Exhibit.What will occur with the network traffic of this virtual machine when communicating externally from vSwitch1?___
A. The virtual machine will communicate on both uplinks
B. The virtual machine will only communicate on vmnic1
C. The virtual machine will only communicate on vmnic2
D. The virtual machine will fail to communicate externally
【单选题】
An administrator is unable to create the first group in a new vRealize Operations environment. What is the likely cause of the problem?___
A. There are no group types defined.
B. The group is not defined in SSO.
C. There are more than 32 group types defined.
D. The description for the group is not provided.
【单选题】
A new vApp was built and tested in the corporate headquarters datacenter running vSphere 6.x. What condition would explain why the virtual machine is failing to boot in an offsite datacenter running on vSphere 5.5?___
A. The virtual machine was built with the default hardware version.
B. The VMFS 5 datastore is not compatible with virtual machines configured with vSphere 6.x.
C. a
D. RS 5.5 cluster cannot run virtual machines configured with vSphere 6.x.
【单选题】
An administrator is evaluating whether to deploy vCenter Server on a Windows server or on a vCenter Server appliance. The administrator has the following requirements: <A web browser will be utilized to manage the vSphere environment.> <16 ESXi hosts will be deployed.> <Licenses must be shared with a vCenter Server at another site.> <An external Oracle 10g database server will be used to host the vCenter Server database.> Why will the administrator need to deploy vCenter Server on a Windows server?___
A. Linked Mode is a requirement for the solution.
B. Oracle 10g is a requirement for the solution.
C. The vSphere web client is a requirement for the solution.
D. Management of more than 5 hosts is a requirement for the solution.
【单选题】
What is a benefit of using VMware Data Protection ?___
A. Provides support for guest-level backups and restores of Microsoft SQL Servers, Exchange Servers, and Share Point Servers.
B. Provides support for advanced storage services including replication, encryption, deduplication, and compression.
C. Provides direct access to VDP configuration integrated into the vSphere Client.
D. Reduces disk space consumed by virtual machine data using deduplication.
【单选题】
An administrator enables vSphere High Availability (HA) on an existing cluster with a large number of hosts and virtual machines. The administrator notices that the setup of vSphere HA on some of the hosts is failing. What step, if taken, might resolve this issue?___
A. Increase the value of the config.vpxd.das.electionWaitTimeSec setting.
B. Set the value of vpxd.das.aamMemoryLimit to 256.
C. Set the value of the das.useDefaultIsolationAddress setting to False.
D. Increase the value of the das.iostatsinterval setting.
【单选题】
An ESXi 6.x host consists of 24 logical cores. Hyperthreading is enabled on the host. What is the maximum number of vCPUs that can be assigned to a virtual machine on this host?___
【单选题】
By default, each ESXi 6.x host is provisioned with a certificate from which root certificate authority?___
A. RedHat Certificate Authority
B. VMware Certificate Authority
C. DigiCert Certificate Authority
D. Verisign Certificate Authority
【单选题】
An administrator is adding an NFS datastore as shown in the Exhibit. What is the purpose of the Servers to be added list?___
A. It contains the IP addresses of the NFS Storage Server to provide multipathing capability.
B. It contains the IP addresses of the ESXi hosts that mount the datastore.
C. It contains the IP addresses used for
D. ynamic Discovery of targets.
【单选题】
An administrator reports that the System Event log data is only available for 24 hours when reviewing the Hardware Status tab. Which condition could be responsible for the loss of data?___
A. A Reset event log was executed.
B. The statistical collection level was set to a value of 1.
C. The boot disk of the host is corrupt.
D. Syslog has been configured at the vCenter Server level.
【单选题】
During an upgrade, the ESXi 6.x installer finds an existing version of ESXi and a VMFS3 volume. No virtual machines exist on the host or VMFS3 volume. The requirement is to upgrade to VMFS5. Which option should be chosen to meet this requirement?___
A. Upgrade ESXi and preserve the VMFS datastore
B. Install ESXi and preserve the VMFS datastore
C. Install ESXi and overwrite the VMFS datastore
D. Upgrade
E. SXi and overwrite the VMFS datastore
【单选题】
A vSphere 6.x Standard Switch is configured with 4 virtual machine portgroups, as shown in the exhibit. Which portgroup would be utilized by default when creating a new virtual machine?___
A. Access Network
B. DMZ Network
C. VM Network
D. Virtual Machine Network
【单选题】
Which vSphere 6.x feature will allow an organization to utilize native snapshots?___
A. Virtual Volumes
B. Virtual SAN
C. VMFS3
D. VMFS5
【单选题】
An administrator is creating a new vSphere Distributed Switch that will be utilized with a specific vSphere Cluster. The cluster itself contains a mix of ESXi 5.x and 6.x Hosts. Which Distributed Switch version should be created to support this configuration?___
A. Distributed Switch: 6.0.0
B. Distributed Switch: 5.0.0
C. Distributed Switch: 5.1.0
D. Distributed Switch: 5.5.0
【单选题】
Which load balancing policy, previously limited to vSphere Distributed Switches, is now available on vSphere Standard Switches with vSphere 6.x?___
A. Route based on physical NIC workload
B. Route based on IP Hash
C. Route based on the originating virtual port
D. Route based on Source MAC Hash
【单选题】
A storage administrator is not seeing full utilization of all bandwidth from an ESXi host. The vSphere administrator observes the adapter details, as shown in the Exhibit. What is the probable cause of this issue?___
A. Another path needs to be used to allow full utilization of the bandwidth.
B. The array is not setup to use the correct multipathing policy.
C. There are no virtual machines on the host.
D. No traffic is being sent across it because a path failed.
【单选题】
A storage administrator is not seeing full utilization of all bandwidth from an ESXi host. The vSphere administrator observes the adapter details, as shown in the Exhibit. What is the probable cause of this issue?___
A. Another path needs to be used to allow full utilization of the bandwidth.
B. The array is not setup to use the correct multipathing policy.
C. There are no virtual machines on the host.
D. No traffic is being sent across it because a path failed.
【单选题】
An administrator has just completed performing an interactive installation of ESXi 6.x and is booting the host. How is the network initially configured?___
A. The network is configured by Automatic Private IP Addressing (APIPA).
B. The network is configured based on the settings detected in DNS.
C. The network is configured with the address as specified in the installer.
D. The network is automatically configured by DHCP.
【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
