相关试题
【单选题】
JZ -7型空气制动机自阀放风阀的功用是:自阀手柄在___时，自阀的放风阀凸轮推开放风阀，直接排出制动管内的压力空气，以达到紧急制动的目的。
A. 最大减压位
B. 手柄取出位
C. 紧急制动位
【单选题】
16V280柴油机配气相位规定：下止点后___，进气门关。
【单选题】
为了达到增压的目的，柴油机需要有进、排气管路，增压器及___等组成的增压系统。
【单选题】
柴油机-发电机组通过___个支承安装于机车上，用于承受柴油机---发电机组的重量和减少柴油机振动对车架的影响。
【单选题】
造成柴油机转速失控的原因之一：步进电机的___及司机控制器的电气线路故障。
【单选题】
柴油机加载、减载时，一般从空载加载至满负荷，或从满负荷减载至空负荷，其时间不少于___s。
【单选题】
柴油机的___是指每个工作循环的供油量不变时，其主要性能指标和参数随转速而变化的规律。
【单选题】
柴油机调速试验要求：当柴油机的负荷为最大运用功率时，转速在___r／min时，突卸负荷至零，超速停车装置不应动作。
【单选题】
如果柴油机功率不足，拉杆系统又没有故障，供油齿条刻线却拉不出来，一般是___或机车电气故障所致。
【单选题】
柴油机运转中因燃油系统故障造成柴油机功率不足的原因有___或喷油器发生故障。
【单选题】
在柴油机启动工况时，启动发电机QD作为直流___，由蓄电池XDC(96V)供电，驱动柴油发电机组。
A. 他励电动机
B. 他励发电机
C. 串励电动机
【单选题】
磁场削弱接触器XC由微机控制，当微机发生故障时可通过转换开关___手动过渡和返回。
【单选题】
同步主发电机F的励磁是由励磁机L发出的三相交流电经___整流后供给的。
【单选题】
为保证柴油机机体支承的隔振效果，应使两个拼紧螺母下的垫圈与支承有___的间隙。
【单选题】
当柴油机超速时，超速停车装置通过控制拉杆装置将喷油泵齿条拉至___，迫使柴油机停机。
【单选题】
东风11型内燃机车喷油泵柱塞全行程为___mm。
【单选题】
东风11型内燃机车柴油机运行一段时间后由于水温的升高，使膨胀水箱的水位稍有上升约为___左右，这是正常的。
【单选题】
东风11型内燃机车共有___个S140型40A直流接触器。
【单选题】
东风11型机车正向过渡点___。
A. 100±3km/h
B. 113±3km/h
C. 120±3km/h
【单选题】
C型联合调节器功率调节系统的功用是保持柴油机在给定转速下的___。
【单选题】
柴油机油压保护机构用途：当柴油机转速达到___时，右纵拉杆上的上盖斜面压住行程开关的触头，油压继电器参与工作。
A. 400 r/min
B. 720 r/min
C. 1000 r/min
【单选题】
东风11型内燃机车当接地继电器线圈中的电流大到___时，DJ动作。
A. 300mA
B. 400mA
C. 500mA
【单选题】
东风11型内燃机车采用的ZD106型牵引电动机，额定功率为___。
A. 500kw
B. 520kw
C. 530kw
【单选题】
东风11型内燃机车采用的ZD106型牵引电动机，磁场削弱等级为___。
【单选题】
柴油机正常停机时，应缓慢的降低柴油机的负载，待机油、冷却水温度降至___，让柴油机空转1--2min后，才可停机。
A. 50-60℃
B. 30-40℃
C. 20-30℃
【单选题】
东风11型内燃机车超速停车装置动作值为___。
A. 1150~1250r/min
B. 1250~1350r/min
C. 1120~1150r/min
【单选题】
东风11型内燃机车燃油系统调压阀的作用压力为___，其作用是使喷油泵的燃油进油、回油管路保持一定压力，以保证油泵工作时有充分、稳定的燃油供应。
A. 100kpa
B. 120kpa
C. 140kpa
【单选题】
东风11型内燃机车柴油机运转时如果任意一个增压器机油入口处的压力低于___，使1YJ或2YJ释放，都会使DLS释放，造成柴油机停机。
A. 78kpa
B. 80kpa
C. 82kpa
【单选题】
东风11型内燃机车在任何工况下，当柴油机燃油精滤器出口压力小于___，时，CDID屏显示“燃油压力低”并记录，同时信号集中显示装置“微机报警”指示灯亮。
A. 150kpa
B. 160kpa
C. 170kpa
【单选题】
东风11型内燃机车在牵引工况下，如果某位牵引电机电流大于___，则机车主发电机功率减小到零，CDID屏显示“#*牵引电动机过流”并记录，同时信号集中显示装置“微机报警”指示灯亮。
A. 1400A
B. 1500A
C. 1600A
【单选题】
东风11型内燃机车在电阻制动工况下，牵引电动机磁场过电流受到保护，如果牵引电动机磁场电流大于___，则主发电压限制为0V。
【单选题】
东风11型内燃机车横向力由转向架通过高圆弹簧、横向油压减振器和侧挡传至___。
【单选题】
东风11型机车转向架牵引电动机悬挂方式采用___。
【单选题】
东风11型机车单元制动器闸瓦间隙为___。
A. 6-8mm
B. 8-10mm
C. 10-12mm
【单选题】
东风11型内燃机车C型联合调速器自400—1000r/min连续降速过渡时间为___。
【单选题】
东风11型机车半导体装置包括时间继电器、过渡装置、电压调整器和___。
A. 接地继电器
B. 过流继电器
C. 无级调速驱动装置
【单选题】
东风11型机车接地继电器除运转拉、中立位、接地位外增加___。
【单选题】
16V280型柴油机活塞行程___。
A. 265mm
B. 275mm
C. 285mm
【单选题】
东风11型内燃机车高圆簧弹性旁承布置在转向架构架两侧梁的中央部分，每侧由___个高圆簧组成。
推荐试题
【单选题】
Which is the correct sequence to upgrade a vSphere infrastructure?___
A. vCenter Server>ESXi host> VMware Tools>VM compatibility
B. ESXi host>vCenter Server> VMware Tools>VM compatibility
C. vCenter host> ESXi host> VM compatibility> VMware Tools
D. ESXi host>vCenter Server> VM compatibility>VMware Tools
【单选题】
An administrator has a large boot from SAN cluster and wants to ensure consistent configuration by using host profiles. What special considerations are required for boot from SAN hosts?___
A. Change the “Device is shared clusterwide” setting to “false” in the host profile.
B. Verify that the boot LUN is correctly identified as the boot device in the host profile.
C. The boot from SAN device must report as a local device.
D. Host profiles are incompatible with boot from SAN hosts.
【单选题】
When using VMware Converter to import a Windows server and improve the consistency of the destination virtual machine, which optional step can be performed immediately prior to powering down the source server?___
A. Perform a final synchronization task.
B. Remove the server from the network.
C. Uninstall production applications.
D. Remove the server from the Active Directory domain.
【单选题】
Restoration of the vCenter Server Appliance is accomplished using which interface?___
A. vSphere Web Client
B. vSphere Client
C. vCenter Server Appliance Management Interface
D. vCenter Server Appliance GUI Installer
【单选题】
When attempting to migrate a virtual machine to another host in the same cluster, the error message, “Select a valid compute resource” returns. What could cause this error?___
A. Both hosts run different versions of ESXi.
B. Both hosts are not sharing the same datastore.
C. VMware Tools is not installed.
D. Virtual machine has an ISO attached.
【单选题】
When will vSphere Data Protection delete the expired backup image of a Platform Service Controller?___
A. Immediately after the retention period has expired.
B. After the expired backup image is restored.
C. During the next backup window following expiry.
D. During the next maintenance window following expiry.
【单选题】
Group A has permission to download files in Content Library. Group B does not have permission to download files in Content Library. If a user is a member of both groups, what will be the result?___
A. The user cannot download file from Content Library.
B. The user can download file from Content Library.
C. The user cannot access Content Library.
D. The user can access Content Library.
【单选题】
An administrator is trying to set up Host Partial Failure Response, but the Automated option is grayed out. What can the administrator change to enable the Automated option?___
A. Change the vSphere DRS Automation level to Partially Automated.
B. Change the vSphere DRS Automation level to Fully Automated.
C. Enable vSphere HA Host Monitoring.
D. Change the vSphere DPM Automation level to Automatic.
【单选题】
When you attempt to open a virtual machine console from the vSphere Web Client, the console does not connect. The following error message appears:<HTTP ERROR 404> <Problem accessin/.Reason: Not Found>. Why did not connect?___
A. Port 443 is in use.
B. Port 9443 is in use.
C. Port 8443 is in use.
D. Port 22443 is in use.
【单选题】
What new feature was introduced to the Content Library in vSphere 6.5?___
A. Mount an ISO directly from the Content Library.
B. Deploy a virtual machine from an OVF Package in a Content Library.
C. Upload a File from a URL to a Library Item.
D. Upload a File from a Local System to a Library Item.
【单选题】
How can an administrator exclude Encryption rights from a support engineer?___
A. Clone the role Virtual machine power user, remove Cryptographic operations privileges.
B. Clone the role Administrator and assign to the support engineer.
C. Clone the role Virtual machine power user and assign to the support engineer.
D. Clone the role No cryptography administrator and select privileges only for the support engineer.
【单选题】
The administrator must back up a vCenter HA deployment. Which component must be backed up?___
A. Passive node
B. Witness node
C. External database
D. Active node
【单选题】
What is the supported protocol to perform remote L3 traffic monitoring in vSphere 6.5?___
A. VXLAN
B. ERSPAN
C. RSPAN
D. SPAN
【单选题】
What are the minimum hardware requirements for a Windows vCenter Server with embedded PSC that manages a “Small” environment?___
A. 2vCPUs, 16 GB RAM
B. 4 vCPUs, 16 GB RAM
C. 2 vCPUs, 10 GB RAM
D. 4 vCPUs, 10 GB RAM
【单选题】
Which port is used for communication between ESXi and vSphere Data protection?___
A. 80
B. 443
C. 902
D. 22
【单选题】
What can prevent Storage DRS from functioning on a datastore?___
A. The datastore is configured for Virtual Machine Swapfile location.
B. The datastore is shared across multiple datacenters.
C. The datastore is connected to a host that is running Storage I/O Control.
D. Storage DRS advanced option IgnoreAffinityRulesForMaintenance is set to 1.
【单选题】
When troubleshooting VMware vCenter Server issues, when logging level provides maximum detail?___
A. Verbose
B. Trivia
C. Info
D. Error
【单选题】
What new feature is introduced in NFS 4.1 on ESXi 6.5?___
A. IPv6
B. KRB5i
C. AUTH_SYS
D. Storage DRS
【单选题】
What configuration option would ensure that a virtual NUMA topology is defined on VMs having more than eight virtual CPUs?___
A. cupid.coresPerSocket
B. numa.vcpu.followcorespersocket
C. numa.vcpu.maxPerVirtualNode
D. numa.vcpu.min
【单选题】
What is the minimum disk space required to deploy vSphere Data Protection (VDP) with 8 TB configuration?___
A. 4 TB
B. 16 TB
C. 8 TB
D. 12 TB
【单选题】
What advanced option for vSphere HA defines a maximum number of reset attempts by VMCP for a virtual machine?___
A. das.maxterminates
B. das.isolationshutdowntimeout
C. das.maxresets
D. fdm.isolationpolicydelaysec
【单选题】
What vSphere technology enables the administrator to ensure consistent configuration at scale?___
A. PowerCLI
B. Host Profiles
C. esxcli
D. vSphere Web Client
【单选题】
Which port is used for vSphere HA agent-to-agent communication?___
A. 443
B. 8182
C. 22
D. 902
【单选题】
Which log file would assist in identifying an issue that occurred during the database export phase of a vCenter Server upgrade process?___
A. vcdb_import.out
B. export.json
C. export-upgrade-runner.log
D. vcdb_export.out
【单选题】
Bidirectional CHAP is support by which storage initiator?___
A. software FCoE HBA
B. Fibre Channel HBA
C. independent hardware iSCSI HBA
D. dependent hardware iSCSI HBA
【单选题】
What is a pool of raw storage capacity that a storage system can provide to Virtual Volumes?___
A. protocol endpoint
B. storage container
C. storage provider
D. datastore
【单选题】
vSphere 6.5 DRS is now Network-Aware. Based on network utilization, when will DRS balance VMs?___
A. DRS will balance VMs when a network resource pool is configured for VMs.
B. DRS will balance VMs when Network I/O Control is enabled.
C. DRS will place VMs on initial boot for hosts that have network utilization lower that the threshold.
D. DRS will vMotion VMs when network utilization is higher than the threshold on a particular host.
【单选题】
A scripted upgrade of ESXi fails due to an incorrect parameter in the upgrade script. What file must the administrator modify to correct the problem?___
A. vmreconfig.pl
B. hostinfo.pl
C. ks.cfg
D. boot.cfg
【单选题】
A VM folder contains VM1 and VM2. Group A has permission to power on virtual machines, defined on the VM folder and its children. Group B has permission to power off virtual machine VM2. If a user is a member of group A and B, what action can the user perform?___
A. Suspend VM2.
B. Power off VM1.
C. Power on and power off VM1.
D. Power on and power off VM2.
【单选题】
The networking team has requested to have a dedicated network for iSCSI traffic. This task has been assigned to the vSphere Administrator. What is the VMware-recommended way to accomplish this?___
A. Configure Static Routes on each ESXi Server.
B. Configure the right subnet.
C. Create a custom IP Stack.
D. Define a dedicated gateway for the iSCSI vmkernel.
【单选题】
To prevent possible failures or issues during a vSphere upgrade, which component should be upgraded first?___
A. ESXi Hosts
B. virtual machines
C. datastores
D. vCenter Server
【单选题】
What is the command for updating an ESXi host?___
A. esxcli software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip
B. esxupdate software update –d”/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”
C. esxcli software update –d “/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”
D. esxupdate software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip
【单选题】
A vSphere Administrator would like to identify which physical NUMA node their virtual machine is currently residing on. What esxtop metric would provide this information?___
A. GST_ND[x]
B. OVD_ND[x]
C. NRMEM
D. NHN
【单选题】
How can a vSphere administrator ensure that two virtual machines never run on the same datastore in a datastore cluster, while permitting the VMs to be load-balanced?___
A. Use an Intra-VM Anti-Affinity Rule.
B. Configure a storage DRS VM override.
C. Disable storage
D. RS for the VMs.
【单选题】
What is the VMware-recommended way to move a physical adapter out of Network I/O Control’s scope?___
A. Set the teaming policy to “Route Based on Physical NIC Load.”
B. Add the vmnic to the Net.NetNiocAllowOverCommit parameter in Advanced System Settings.
C. Add the vmnic to the Net.IOControlPnicOptOut parameter in Advanced System Settings.
D. Move the vmnic to a different vmUplink port on the Distributed Switch.
【单选题】
A VM folder contains VM1 and VM2. Group A has permission to power on virtual machines, defined on the VM folder and its children. Group B has permission to power off virtual machines, defined on the VM folder and its children. If a user is a member of Groups A and B, what will be the user’s effective permission on VM1 and VM2?___
A. Power on
B. Power off.
C. Power on and Power off.
D. Reset.
【单选题】
Group 1 is granted console interaction on a VM folder. User 1 is granted no console interaction on the same VM folder. What will be the outcome if User 1 tries to access the console of a virtual machine?___
A. User 1 will not be able to access the virtual machines in the VM folder.
B. User 1 will not have access to the virtual machine console.
C. User 1 will have access to the virtual machine console.
D. User 1 will have console access only via the vSphere Web Client.
【单选题】
Which statement is true regarding the use of VMFS3 datastores with vSphere 6.5?___
A. VMFS3 datastores can be used but not created.
B. VMFS3 datastores can be neither used nor created.
C. VMFS3 datastores will be present but unmounted.
D. VMFS3 datastores can be created and used.
【单选题】
In the Exhibit, each VM has a 1GHz non-expandable reservation. If all VMs are powered on in sequence, what would be the outcome?___
A. VM4 cannot be powered on.
B. VM5 cannot be powered on.
C. VM6 cannot be powered on.
D. VM3 cannot be powered on.
【单选题】
vSphere 6.5 introduced MAClearning capabilities for VMware’s virtual switches. What three benefits will it provide? (Choose three.)___
A. Reduced memory consumption.
B. Reduced consumption of extra CPU cycles.
C. Increased network throughput.
D. Prevent packet flooding inside the vSwitch.
