【单选题】
TWG-1系列空重车自动调整装置触头拧入顶杆后，须有( )以上的向上调整量。
A. 2mm
B. 3mm
C. 4mm
D. 5mm
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相关试题
【单选题】
ST1-600型闸调器采用杠杆控制结构安装在车辆上时，闸调器应装在( )。(1.0分)
A. 二位上拉杆处
B. 制动杠杆连接杆
C. 一位上拉杆处
D. 两个拉杆之间处
【单选题】
（ ）也是微机的一种重要输入设备，通过一条电缆线连到计算机上。(1.0分)
【单选题】
705试验台须（ ）进行一次机能检修。
【单选题】
KZW-4GA型半重车位试验制动缸压力为( )。(1.0分)
A. 220±40kPa
B. 230±10kPa
C. 240±40kPa
D. 250±10)kPa
【单选题】
运算器和控制器两大部件集成到一块芯片上，称之为( )(1.0分)
A. CPU
B. ALU
C. 主机
D. MPU
【单选题】
在计算机网络中，LAN网指的是( )。(1.0分)
A. 局域网
B. 广域网
C. 城域网
D. 以太网
【单选题】
单车漏泄试验时，保压时间一般掌握在（ ）。(1.0分)
A. 1min
B. 2min
C. 3min
D. 4min
【单选题】
JZ-7型空气制动机自动制动阀凸轮轴上装有（ ）、放风阀凸轮、重联柱塞阀凸轮、缓解柱塞阀凸轮(1.0分)
A. 调整阀凸轮
B. 中继阀凸轮
C. 制动柱塞阀凸轮
D. 都不是
【单选题】
P65、P65S型车全车漏泄试验时，漏泄量不大于( )。(1.0分)
A. 5 kPa
B. 10 kPa
C. 15 kPa
D. 20 kPa
【单选题】
从列车闸瓦压上车轮后到列车停止所走过的距离叫( )。(1.0分)
A. 制动距离
B. 空走距离
C. 有效制动距离
D. 距离
【单选题】
列车运行时，始终存在的阻力称为( )。(1.0分)
A. 列车运行阻力
B. 附加阻力
C. 基本阻力
D. 阻力
【单选题】
紧急放风阀装在( )管座前面的下部。(1.0分)
【单选题】
零件图的技术要求的标注必须符合( )的规定注法。(1.0分)
A. 工厂
B. 行业
C. 部颁
D. 国家标准
【单选题】
缓解感度试验时，制动管长度小于16m时，将单车试验器移置（ ）充气。(1.0分)
【单选题】
NPT-5型空压机磨合试验时间不少于( )。(1.0分)
A. 80 min
B. 90 min
C. 70 min
D. 60 min
【单选题】
JZ-7型空气制动机自动制动阀调整阀调柱塞与套的间隙应不大于（ ）。(1.0分)
A. 0.12mm
B. 0.10mm
C. 0.13mm
D. 0.09mm
【单选题】
CCB-Ⅱ型制动机是基于网络的（ ）制动系统。(1.0分)
【单选题】
SP系列单元制动缸属于（ ）。(1.0分)
A. 活塞式
B. 膜板式
C. 涨圈式
D. 密封式
【单选题】
25G型客车基础制动装置中各种圆销，厂段修允许径向磨耗（ ）。(1.0分)
A. 1.5mm
B. 2mm
C. 2.5mm
D. 3mm
【单选题】
一般双管供风制的车辆上，制动和总风软管的特征为（ ）。(1.0分)
A. 从车端看，制动软管在上方，总风软管在下方
B. 从车端看，制动软管在下方，总风软管在上方
C. 一般制动软管比总风软管短
D. 一般总风软管比制动软管外径要大
【单选题】
HXD3型电力机车弹停装置的主要作用是（ ）功能。(1.0分)
【单选题】
104紧急阀紧急活塞膜板的规格为（ ）。(1.0分)
A. Φ38
B. Φ60
C. Φ100
D. Φ116
【单选题】
25T型客车A3修时间周期为距上次A2级修程超过（ ）者。(1.0分)
【单选题】
按照我国目前的划分标准，重大伤亡事故是指( )。(1.0分)
A. 一次死亡1至2人的事故
B. 一次死亡3至9人的事故
C. 一次死亡10人以上50人以下的事故
D. 一次死亡50人以上的事故
【单选题】
敬业精神表现为职业的尊严感和荣誉感，表现为从业人员在职业活动中( )。(1.0分)
A. 不允许自己做有损于本职业的事情
B. 不容忍他人做有损于自身职业的行为
C. 对自己和他人的职业行为不做任何约束
D. 既不允许自己做有损于本职业的事情，也不容忍他人做有损于自身职业的行为
【单选题】
紧急制动试验时，制动管减压（ ）kPa前须起紧急制动作用。(1.0分)
A. 100
B. 120
C. 150
D. 170
【单选题】
低压是指对地电压在( )及以下的电压。(1.0分)
A. 250V
B. 500V
C. 800V
D. 1000V
【单选题】
CCB-Ⅱ型制动机以（ ）型制动机为基础，为满足干线客、货运机车的运用要求而设计的。(1.0分)
A. DK-1
B. JZ-7
C. ET-6
D. 26-L
【单选题】
厂、段修时，手制动机轴有裂纹折损须（ ）。(1.0分)
A. 更换
B. 锻接
C. 焊接
D. 焊接或锻接
【单选题】
使用沙土灭火时，若燃着物距接触网带电部分( )以外，接触网可以不停电。(1.0分)
【单选题】
CCB-Ⅱ型制动机中EPCU是指（ ） 。(1.0分)
A. 电子制动阀
B. 继电器接口模块
C. 微处理器
D. 电空控制单元
【单选题】
非金属合成闸瓦的主要优点之一是（ ）。(1.0分)
A. 强度好
B. 散热好
C. 对车轮磨损小
D. 在高速制动减速时摩擦系数较大
【单选题】
空气弹簧高度调整阀调整杆与杠杆的装配角度应为（ ）左右。(1.0分)
A. 45°
B. 60°
C. 90°
D. 120°
【单选题】
起重机在起吊较重物件时，应先将重物吊里地面( )左右，检查确认正常后方可继续工作。(1.0分)
A. 10cm
B. 1cm
C. 5cm
D. 50cm
【单选题】
在单车试验时，装有104型分配阀的车辆进行紧急制动试验，其制动缸的最高压力应为（ ）。(1.0分)
A. 420±10kpa
B. 480±10kpa
C. 420±20kpa
D. 480±20KPa
【单选题】
用内径百分表可测量孔的( )。(1.0分)
A. 尺寸误差和位置误差
B. 尺寸误差和形状误差
C. 尺寸误差、形状误差和位置误差
D. 形状误差和位置误差
【单选题】
二氧化碳（干粉）灭火器适用于扑灭( )以下的各种电器火灾。(1.0分)
A. 2000v
B. 1000v
C. 800v
D. 600v
【单选题】
百分表每次使用完毕后要将测量杆擦净，放入盒内保管，应( )。 (1.0分)
A. 涂上油脂
B. 上机油
C. 让测量杆处于自由状态
D. 拿测量杆，以免变形
【单选题】
定压500kPa时， CCB-II型制动机自阀全制位，列车管减压量为（ ）。(1.0分)
A. 140kPa
B. 170kPa
C. 200kPa
D. 220kPa
【单选题】
DK-1型制动机电动放风阀由模板（ ）、阀、弹簧等组成。
A. 阀杆
B. 芯杆
C. 传递杆
D. 导向杆
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人民民主专政的新中国的创建，标志着近代以来中国面临的两大历史任务的基本完成。
【单选题】
A vSphere content library administrator is attempting to unpublish the content library, but the option is grayed out as shown in the Exhibit. Which statement identifies the reason for not being able to unpublish? ___
A. The content library is optimized for syncing over HTTP.
B. A synchronization operation is in progress with this content library.
C. There are active subscriptions on this content library.
D. Underlying storage for this content library is not accessible.
【单选题】
Assuming a mirrored (RAID-1) object configuration, how many hosts must contribute storage in a non-stretched VMware vSAN cluster to satisfy the “Number of failures to tolerate” policy option?“n” is the desired “Number of failures to tolerate” value for all options.___
A. 2n+2
B. 2n
C. 2n+1
D. 3n
【单选题】
An administrator must change the statistics level for short-term performance monitoring and wants to collect metrics for all counters, excluding minimum and maximum rollup values. What would be the statistics level?___
A. Level 3
B. Level 1
C. Level 2
D. Level 4
【单选题】
In a vSphere environment, two resource pools are created as shown in the Exhibit. Each VM is configured with 1 GB of memory. When the administrator tried to power on VM3, the operation failed. What action in the resource pool settings will allow VM3 to power on successfully?___
A. Deselect Expandable Memory Reservation
B. Increase Memory Reservation
C. Deselect Expandable CPU Reservation
D. Increase the CPU Reservation
【单选题】
Which network is used by vSphere HA when VMware vSAN is enabled?___
A. Management network
B. vSphere Replication network
C. vMotion network
D. VSAN network
【单选题】
Which statement is correct when migrating from a Windows vCenter Server to the vCenter Server Appliance 6.5?___
A. Migration deployments do not migrate local OS users from the source vCenter Server.
B. Migration deployments support DHCP on the source vCenter Server.
C. Migration deployments allow the source vCenter Server to remain powered on afterwards.
D. Migration deployments support custom ports for all services on the source vCenter Server.
【单选题】
How can failback of a recovered virtual machine in vSphere Replication be performed?___
A. No action required, because failback is automatically performed to the source site.
B. Configure a new replication in the reverse direction at the target site.
C. Disable or Stop the virtual machine replication on the source site.
D. Power off and unregister the virtual machine on the target site.
【单选题】
After upgrading the vSphere infrastructure and VMware Tools to version 6.5, the “Upgrade VM Compatibility” option is grayed out in the vSphere Web Client. (See Exhibit.) What must the administrator do to enable the VM compatibility upgrade?___
A. VMware Tools should be upgraded last.
B. Restart the ESXi server.
C. Uninstall VMware Tools.
D. Power off the virtual machine.
【单选题】
What availability mode does vCenter HA provide?___
A. Active-Passive
B. Active-Standby
C. Active-Active
D. Load-balanced
【单选题】
In which scenario will vSphere DRS balance resources when set to Fully Automated?___
A. Hosts with only shared storage
B. Hosts are part of a vSphere HA cluster
C. Power Management is set to Balanced on hosts
D. Hosts with shared or non-shared storage
【单选题】
What VMware technology can be used to move physical servers to the vSphere infrastructure?___
A. VMware vMotion
B. VMware Converter
C. VMware vCenter Server
D. OVF transport
【单选题】
Upgrading vCenter Server with Microsoft SQL database fails with the following error message: The DB User entered does not have the required permissions needed to install and configure vCenter Server with the selected DB. Please correct the following error(s): %sWhat could cause this error?___
A. incorrect ports open on SQL Server
B. incorrect database on the SQL server
C. incorrect compatibility mode on the SQL server
D. incorrect permission on SQL Server database
【单选题】
What is a potential downside of having more than four paths per datastore?___
A. limits the storage protocols
B. increases storage latency for VM
C. limits the path selection policies
D. limits the number of LUNs per host
【单选题】
Which feature facilitates the sharing of templates via vCenter Server?___
A. Content Library
B. OVF
C. folders
D. vApp
【单选题】
A vSphere Administrator is in the process of configuring replication for a virtual machine, but is not able to select the Recovery Point Objective (RPO) value of 5 minutes. Which statement could explain why the RPO value cannot be lower than 15 minutes?___
A. The OS quiescing option is selected for Replication options.
B. The virtual machine hardware version is not compatible.
C. The target and source sites use different types of datastores.
D. The target and source sites are not using VMFS 6.0 datastore.
【单选题】
What advanced parameter defines a custom isolation IP address for a vSphere HA cluster?___
A. das.usedefaultisolationaddress
B. das.isolationshutdowntimeout
C. fdm.isolationpolicydelaysec
D. das.isolationaddress
【单选题】
Which method is supported for backing up the virtual machine that contains vCenter Server?___
A. differential
B. incremental
C. full image
D. individual disks
【单选题】
A vSphere Administrator must ensure that a user is able to view and manage the system configuration in vSphere Web Client. In the vCenter Single Sign-On domain, which group should the user be a part of?___
A. SystemConfiguration.BashShellAdministrators
B. ComponentManager. Administrators
C. Administrators
D. SystemConfiguration.Administrators
【单选题】
What is the minimum number of hosts that must contribute capacity to a non-ROBO single site VMware vSAN cluster?___
【单选题】
Which guest operating system supports PVRDMA?___
A. Windows (32-Bit)
B. Linux (32-Bit)
C. Windows (64-Bit)
D. Linux (64-Bit)
【单选题】
What is the correct way to replace the certificate on an existing vCenter Server that is part of a vCenter HA configuration?___
A. Put the vCenter HA in Maintenance mode, replace the certificate, exit Maintenance mode.
B. Shut down Passive and Witness nodes and replace the certificate on the Active node.
C. Remove the Passive and Witness nodes, replace the certificate, reconfigure the cluster.
D. Replace the certificate while all nodes are participating in the cluster.
【单选题】
The vSphere Data Protection performance analysis results in the “Conditionally Passed” status. What can cause this condition?___
A. The results did not meet the minimum performance expectations.
B. The read, write, and seek tests were successful.
C. The read and write tests were successful but the seek test failed.
D. The read and write tests were successful but the seek test skipped.
【单选题】
A vSphere Administrator wants to reserve 0.5 Gbps for virtual machines on each uplink on a disturbed switch that has 10 uplinks. What is the quota that should be reserved for the network resource pool?___
A. 10 Gbps
B. 5 Gbps
C. 100 Gbps
D. 0.5 Gbps
【单选题】
A vSphere administrator manages a cluster which includes critical and non-critical virtual machines. The cluster requires different permissions for contractors and non-contractors. How can the administrator exclude the contractor group from some of the critical VMs?___
A. Apply permission for both contractors and non-contractors on the cluster level.
B. Apply permission for both contractors and non-contractors on the cluster level. Remove permission on the critical VMs for contractors.
C. Remove permission for contractors on the cluster level. Apply permission on the critical VMs for noncontractors.
D. Apply permission for both contractors and non-contractors on the VMs. Remove permission on the critical VMs for contractors.
【单选题】
In an ESXi 6.5 cluster only "NFS datastore has running or registered virtual machines" returns. A vSphere HA cluster with four hosts has admission control configured to tolerate one host failure. Which statement is true if a fifth host is added?___
A. CPU and Memory capacity will be set to 50%.
B. CPU and Memory capacity will be set to 30%.
C. CPU and Memory capacity will be set to 25%.
D. CPU and Memory capacity will be set to 20%.
【单选题】
Which command can be run to troubleshoot connectivity problems with vmkernal network interfaces?___
A. esxcli network
B. vmkping
C. net-status
D. vicfg-vmknic
【单选题】
What counter should an administrator check to determine if a virtual machine is ballooning?___
A. swapinRate
B. vmmemctltarget
C. swapped
D. vmmemctl
【单选题】
By default, how often is the vCenter vpx user password automatically changed?___
A. 15 days
B. 60 days
C. 30 days
D. 45 days
【单选题】
Which metric in the Exhibit would identify high latency for a virtual machine operating system?___
A. QAVG/cmd
B. KAVG/cmd
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?___
A. High
B. Normal
C. Low
D. Medium
【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?___
A. The infrastructure uses a vSphere Standard license.
B. The infrastructure has servers with various CPU families.
C. The user has only the “Administrator” role.
D. Host Profiles apply only to storage settings.
【单选题】
What is the result of a “Consolidate” action on a virtual machine?___
A. All snapshots on the virtual machines will be deleted.
B. The virtual machine will be reverted to its last snapshot.
C. Redundant delta disks will be combined and deleted.
D. A new snapshot with memory state will be created.
【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?___
A. Network I/O Control
B. SplitRX
C. ERSPAN
D. LACP
【单选题】
What is the VMware-recommended best practice for Fibre Channel zoning?___
A. soft zoning
B. single-initiator-multiple-target zoning
C. single-initiator zoning
D. single-initiator-single-target zoning
【单选题】
How can a vSphere administrator ensure that a set of virtual machines run on different hosts in a DRS cluster?___
A. Use a VM-Host affinity rule.
B. Add the VMs to a vApp.
C. Use a VM-VM affinity rule.
D. Place the VMs in different folders.
【单选题】
vCenter Server Appliance Instance can be backed up using which Client Interface?___
A. vSphere Client Interface
B. vSphere Web Client Interface
C. VMware Host Client Interface
D. Virtual Appliance Management Interface
【单选题】
What tool can capture network traffic at the uplinks, or vSwitch, or virtual port levels?___
A. tcpdump-uw
B. wireshark
C. pktcap-uw
D. pcap
【单选题】
Which storage feature always requires the use of third-party software on ESXi?___
A. Hardware Acceleration for NAS devices
B. VVOL
C. Hardware Acceleration for Block
D. evices
