相关试题
【单选题】
客车空气制动机在作单车的制动机紧急制动试验时，要求制动主管减压达到（ ）发生紧急制动作用。(1.0分)
A. 100kPa之前
B. 100kPa之后
C. 170kPa之前
D. 170kPa之后
【单选题】
SP2型单元制动缸中有两套螺母机构，一般称为调整螺母和（ ）。(1.0分)
A. 定位螺母
B. 缓冲螺母
C. 引导螺母
D. 进位螺母
【单选题】
有自动补风作用的是（ ）。(1.0分)
A. K型三通阀
B. GK型三通阀
C. GL3三通阀
D. 104分配阀
【单选题】
车辆基础制动装置采用（ ）。(1.0分)
A. 拉杆传动
B. 杠杆及拉杆传动
C. 杠杆传动
D. 风动传动
【单选题】
列车在某一区段运行的速度称为（ ）。(1.0分)
A. 旅行速度
B. 构造速度
C. 技术速度
D. 限制速度
【单选题】
静态缓解情况下，车辆上的高度调整阀杠杆应呈（ ）位置。(1.0分)
A. 垂直
B. 水平
C. 向上一定角度
D. 向下一定角度
【单选题】
DK-1型制动机紧急阀有三个作用位置，充气位、（ ）和紧急制动位。(1.0分)
A. 常用制动位
B. 初制动位
C. 缓解位
D. 关闭位
【单选题】
制动时，控制列车管向制动缸供风的是（ ）。(1.0分)
A. 增压阀
B. 局减阀
C. 充气阀
D. 均衡阀
【单选题】
DK-1型制动机中109型分配阀是根据（ ）的压力变化而动作。(1.0分)
A. 总风缸
B. 均衡风缸
C. 作用管
D. 列车管
【单选题】
DK-1型制动机中继阀是根据（ ）的压力变化来控制列车管的充风和排风。(1.0分)
A. 制动缸
B. 均衡风缸
C. 作用风缸
D. 控制风缸
【单选题】
滑阀安装在104型分配阀的（ ）。
A. 充气部
B. 作用部
C. 均衡部
D. 增压部
【单选题】
CCB-Ⅱ型制动机空电互锁电磁阀DBI位于（ ）模块中。(1.0分)
A. BPCP
B. BCCP
C. 16CP
D. 20CP
【单选题】
DK-1型电空制动控制器手柄紧急位，列车管压力（ ）内降至0.(1.0分)
【单选题】
装有密接式车钩的车辆，其所用制动软管比普通制动软管要（ ）。(1.0分)
【单选题】
DK-1型空气制动阀置全制位，制动缸压力由0升至280kPa的时间不大于（ ）S。
【单选题】
要将剪贴板中的内容复制到目标位置，可从“编辑”菜单中选择“（ ）”命令。(1.0分)
【单选题】
在缓解的过程中，三通阀排气口有风排出而不产生缓解的原因是（ ）。(1.0分)
A. 主活塞漏泄
B. 紧急阀漏泄
C. 充气沟过长
D. 制动缸缺油干涸
【单选题】
半自动缓解阀与（ ）接触不严密者，易造成漏风，须研磨加修。
【单选题】
GK型三通阀在701型试验台紧急制动试验中，制动缸压力由零升至最高值的时间应为( )。(1.0分)
A. 5～9s
B. 9～14s
C. 14～18s
D. 15～20s
【单选题】
缓解阀阀杆销子弯曲变形、磨耗过限时更换铆钉，（ ）须用标准品。(1.0分)
A. 阀杆
B. 作用杆
C. 递动杆
D. 夹心阀
【单选题】
103型分配阀局减阀弹簧自由高为( )。(1.0分)
A. 35.5～34 mm
B. 42.5～36.3 mm
C. 52.5～48.3 mm
D. 55.5～51.5 mm
【单选题】
120型控制阀有掌控着（ ）向大气排风的决定性作用。(1.0分)
A. 双室风缸
B. 工作风缸
C. 副风缸
D. 制动缸
【单选题】
103型分配阀减速弹簧自由高为( )。(1.0分)
A. 78～74 mm
B. 42.5～36.3 mm
C. 52.5～48.3 mm
D. 55.5～51.5 mm
【单选题】
货车用半自动缓解阀由（ ）、阀上体、阀芯、弹簧、阀下体、阀垫等组成。(1.0分)
A. 缓解杆
B. 作用杆
C. 递动杆
D. 夹心阀
【单选题】
在默认情况下，一个新Excel工作簿文件有( )个工作表。(1.0分)
【单选题】
KZW系列空重车自动调整装置性能空车位试验时，其减压量是5位减压（ ）。(1.0分)
A. 200kPa
B. 140kPa
C. 160kPa
D. 100kPa
【单选题】
120型控制阀254 mm制动缸缓解限制缩堵孔为( )。(1.0分)
A. 1.2 mm
B. 1.5 mm
C. 1.8 mm
D. 2.9 mm
【单选题】
装用闸调器的305×254制动缸的活塞行程为（ ）。
A. 155±10 mm
B. 155±5mm
C. 125±5 mm
D. 130±10mm
【单选题】
ST1-600型闸瓦间隙调整器的控制部分的形式采用的是( )。(1.0分)
A. 杠杆式
B. 推杆式
C. 拉杆式
D. 侧拉式
【单选题】
JZ-7型空气制动机自动制动阀管座上共连接（ ）根管。
【单选题】
120-1型控制阀加速缓解阀由加速缓解阀活塞、加速缓解膜板、活塞杆、橡胶密封圈、夹心阀、
( )、止回阀、止回阀簧、顶杆、加速缓解阀套等组成。(1.0分)
A. 加速缓解阀弹簧
B. 减速弹簧
C. 递动杆
D. 稳定杆
【单选题】
“局部减压”是分配阀在( )时引起的列车管压力下降现象。(1.0分)
【单选题】
JZ-7型空气制动机自动制动阀支承杠杆滚轮各销与孔的间隙应不大于（ ）。(1.0分)
A. 0.5mm
B. 0.3mm
C. 0.4mm
D. 0.7mm
【单选题】
JZ-7型空气制动机均衡风缸和列车管增压时，机车( )。
A. 制动
B. 缓解
C. 制动保压
D. 运行
【单选题】
120-1型控制阀滑阀下面ju3限制孔为( )。(1.0分)
A. Φ1.0 mm
B. Φ0.8 mm
C. Φ0.6 mm
D. Φ0.2 mm
【单选题】
120-1型控制阀滑阀座磨耗后高度超过( )时更换。(1.0分)
A. 46.8 mm
B. 45.8 mm
C. 45.6 mm
D. 44.8 mm
【单选题】
绘制零件图对零件进行形体分析，确定主视图方向后，下一步是( )。(1.0分)
A. 选择其他视图，确定表达方案
B. 画出各个视图
C. 选择图幅，确定作图比例
D. 安排布图，画基准线
【单选题】
103阀滑阀及滑阀座、节制阀工作面须涂适量( )。(1.0分)
A. 7057硅脂
B. 硅油
C. 润滑油
D. 改性甲基硅油
【单选题】
操作系统是一种（ ）软件。(1.0分)
【单选题】
劳动者在试用期的工资不得低于本单位相同岗位最低档工资或者劳动合同约定工资的( )，并
不得低于用人单位所在地的最低工资标准。(1.0分)
A. 30％
B. 50％
C. 60％
D. 80％
推荐试题
【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.
【单选题】
A virtual machine template is accidently removed from the vCenter Server Inventory. Which method would be used to recover the template back into the environment?___
A. Use the datastore browser to locate the template, then right click and add the .vmtx file to inventory.
B. Use the datastore browser to locate the template, then right click and add the .vmx file to inventory.
C. Using the Managed Object Browser and adding the template from the ManagedObjectReference:GuestFileManager object.
D. Using the Managed Object Browser and adding the template from the ManagedObjectReference:VirtualDiskManager object.
【单选题】
A vSphere administrator needs to backup a virtual machine that has a Microsoft SQL Server Database installed. Which solution allows for an application quiesce to occur during backup?___
A. VMware vCenter Converter
B. VMware vCenter Site Recovery Manager
C. VMware vSphere Replication
D. VMware vSphere Data Protection Advanced
【单选题】
An administrator is migrating a virtual machine from a Test cluster to a Production cluster. The two environments do not have any shared storage. What is the easiest way to accomplish this task? ___
A. Perform a Storage vMotion.
B. Perform a regular vMotion.
C. Perform a Virtual to Virtual migration.
D. Perform a backup and restore using VMware Data Protection.
【单选题】
An administrator must determine an appropriate backup solution, given these conditions: 50 of the virtual machines are in a resource pool named Finance. 50 of the virtual machines are in a resource pool named QA. Which solution allows an administrator the ability to backup 100 virtual machines? ___
A. Use Snapshot Manager on the vCenter Server to backup the virtual machines.
B. Use the VMware Consolidated Backup (vcb) tool on the ESXi Host to backup the virtual machines.
C. Use the VMware Data Recovery (VDR) Appliance on the vCenter Server to backup the virtual machines.
D. Use the VMware Data Protection (VDP) Appliance on one of the
E. SXi Hosts to backup the virtual machines.
【单选题】
What is a benefit of using Enhanced vMotion Compatibility for an environment? ___
A. EVC masks CPU features to allow compatibility between hosts that are dissimilar.
B. EVC allows for cross platform vMotion to occur.
C. EVC enables Long
D. istance vMotion.
【单选题】
How many Link Aggregation Groups (LAGs) can be configured on a vSphere 6.x Distributed Switch? ___
A. 64
B. 96
C. 128
D. 256
【单选题】
How many Link Aggregation Groups (LAGs) can be configured on a vSphere 6.x Distributed Switch? ___
A. 64
B. 96
C. 128
D. 256
【单选题】
An administrator needs to verify that vMotion operations can be performed in a vSphere data center.What round trip time (RTT) latency is the maximum value that will allow vMotion operations to succeed? ___
A. 50ms RTT
B. 100ms RTT
C. 150ms RTT
D. 200ms RTT
【单选题】
A storage administrator has reported that full utilization of all bandwidth from an ESXi 6.x host is not being seen. In troubleshooting the issue, the Adapter details are shown in the Exhibit. Based on the exhibit, what is cause of the issue? ___
A. The array is not setup to use the correct multipathing policy.
B. There are no virtual machines on the ESXi host.
C. Not all links are used because a path is disabled.
D. Another path needs to be configured.
【单选题】
An administrator is migrating a powered-on virtual machine, as shown in the exhibit. Which option should be selected to perform a Storage vMotion of the VM? ___
A. Change storage only
B. Change VM compute resource only
C. Change both compute resource and storage, changing the compute resource first.
D. Change both compute resource and storage, changing the storage resource first.
【单选题】
An administrator is attempting to enable Storage I/O Control on a datastore, but it is failing. What is the likely reason for this failure? ___
A. The host is connected to a datastore is running on ESX 4.0.
B. The host is connected to a Fibre Channel storage array.
C. The datastore has multiple extents.
D. The datastore is managed by a single vCenter Server.
【单选题】
A mission-critical virtual machine built on vSphere 4.1 needs to be moved to an ESXi 6.x host.Which virtual hardware version is needed to move the virtual machine without upgrading? ___
【单选题】
An administrator is analyzing a virtual machine as shown in the Exhibit. What is the current long term risk for this virtual machine? ___
A. The virtual machine may run out of memory before April 27.
B. The virtual machine may continue to function after April 27.
C. The virtual machine has adequate memory configured for operation for the next 120 days.
D. The virtual machine has adequate memory reservation configured for operation for the next 120 days.
【单选题】
An administrator is monitoring a High Availability (HA) and Distributed Resource Scheduler (DRS) enabled cluster and has noticed that virtual machines in the cluster are being migrated without user intervention. Why is this happening? ___
A. The DRS Automation level is set to Fully Automated.
B. The Automation level is set to Automatic.
C. The
D. PM Threshold is set to Aggressive.
【单选题】
An administrator attempts to migrate a suspended virtual machine to a newly deployed vSphere 6.x cluster. The compatibility check fails. What condition could cause this behavior?___
A. The new vSphere 6.x cluster is running Intel CPUs instead of AMD CPUs.
B. A suspended virtual machine cannot be migrated.
C. The hardware virtualization feature of the CPU is not enabled on the new hosts.
D. A vSphere Distributed Switch is required to migrate a suspended virtual machine.
【单选题】
A vSphere administrator has been using vSphere in evaluation mode and now wants to deploy an environment that provides the same features. Which edition of vSphere provides similar functionality to evaluation mode? ___
A. Enterprise Plus
B. Enterprise
C. Standard
D. Essentials
【单选题】
A vSphere administrator has been using vSphere in evaluation mode and now wants to deploy an environment that provides the same features. Which edition of vSphere provides similar functionality to evaluation mode? ___
A. Enterprise Plus
B. Enterprise
C. Standard
D. Essentials
【单选题】
An administrator has just configured the IP address on an ESXi host from the Direct Console User Interface. How can the configuration be validated as correct without any additional tools?___
A. Add the host to vCenter Server and if it works, then all networking settings are ok.
B. Select the Test Management Network option from the DCUI.
C. Connect to the host with the vSphere Client and click the Test Network option.
D. Use PowerCLI to connect to the host and initiate a network test.
【单选题】
An administrator is installing vCenter Server for an environment that has 40 ESXi 6.x Hosts and 150 virtual machines. Which database would meet the minimal requirements needed for this task? ___
A. vFabric Postgres
B. Microsoft SQL Express 2008
C. Microsoft SQL Server 2014
D. Oracle 11g
【单选题】
What is a requirement when enabling a Virtual SAN cluster in an existing High Availability (HA) and Distributed Resource Scheduler (DRS) Cluster? ___
A. Disable DRS and HA before enabling Virtual SAN
B. Enable DRS before enabling Virtual SAN
C. Disable HA before enabling Virtual SAN
D. Enable Storage DRS before enabling Virtual SAN
【单选题】
The vSphere administrator attempts to connect to an ESXi host via an SSH client and receives the following security alert: The vSphere administrator needs to determine whether the RSA key fingerprint shown in the security alert is the fingerprint of the intended ESXi host. Which tool should the vSphere administrator use? ___
A. Direct Console User Interface
B. vSphere Client
C. vSphere Web Client
D. vSphere Management Assistant
【单选题】
An administrator needs to monitor traffic on vSwitches in a vSphere 6.x environment. Which option, if configured, would accomplish this task? ___
A. Forged Transmits
B. MAC Address Changes
C. Promiscuous Mode
D. Notify Switches
【单选题】
What is true regarding datastores on ESXi 6.x? ___
A. NFS 4.1 datastore does not support Fault Tolerance (FT)
B. VMFS3 and VMFS5 datastores can be newly created
C. NFS datastore can be concurrently mounted using NFS 4.1 on one host and NFS on another
D. NFS 3.0 datastore does not support Fault Tolerance (FT)
【单选题】
An administrator is cloning and configuring five new web server virtual machines. What would be the benefit of configuring resource shares for the new VMs? ___
A. To prioritize access to a resource during contention.
B. To guarantee access to a resource during contention.
C. To prioritize access to a resource before contention occurs.
D. To guarantee access to a resource before contention occurs.
【单选题】
An administrator logs into the vSphere Web Client and sees the warning shown in the Exhibit. During a change control window, the warning was addressed. What should be done to verify that the host is no longer showing the warning? ___
A. Run a Remediate host operation.
B. Recheck the compliance of the host.
C. Restart the host to get rid of the warning.
D. Install VMware tools to clear the warning.
【单选题】
A vApp named Sales has a Memory Limit of 32 GB and a CPU Limit of 12,000 MHz. There are three virtual machines within the vApp: <Sales-DB -- Has a memory reservation of 20 GB. > <Sales-DC -- Has a memory reservation of 8 GB. > <Sales-Web -- Has a memory reservation of 8 GB.> Which statement is correct? ___
A. All three virtual machines can power on, but will have memory contention.
B. All three virtual machines can power on without memory contention.
C. Only two of the three virtual machines can power on.
D. Only one of the virtual machines can power on.
【单选题】
You are editing the management network configuration of an ESXi 6.x Host from the vSphere Web Client. You mistakenly put the incorrect VLAN in place for the management network. What action do you need to take to correct this? ___
A. You need to manually edit the configuration on the host with command line utilities.
B. No action is required. By default ESXi rolls back configuration changes that disconnect the host.
C. The ESXi host system configuration will need to be restored to the factory configuration to fix the issue.
D. The change can be reverted in the vSphere Web Client by simply editing the switch again.
【单选题】
What is true about resource pools created on a Distributed Resource Scheduler (DRS) cluster?___
A. A root resource pool is created with the specified values.
B. A root resource pool is automatically created using the aggregate total of the ESXi host resources in the cluster.
C. A root resource pool is automatically created using the aggregate total of all resources in the datacenter.
D. A root resource pool is not needed when creating resource pools on a DRS cluster.
