【多选题】
[45]裂解气碱洗后二氧化碳脱除不合格会造成___。
A. 缩短分子筛寿命
B. 低温下形成干冰堵塞设备和管道
C. 碳二加氢催化剂中毒
D. 乙烯产品不合格关于
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【多选题】
[46]甲醇的说法下列表述正确的有___。
A. 可用作防冻剂
B. 甲醇会使人眼盲
C. 易燃易挥发
D. 可以直接接触
【多选题】
[47]压缩机油路冲洗的作用有___。
A. 除去粉层
B. 除去配管上的氧化层
C. 除去焊渣
D. 除去管道中的固体颗粒
【多选题】
[48]裂解气中夹带的酸性气体主要包括___。
A. CO2
B. 烯烃
C. CO
D. H2S
【多选题】
[50]裂解气多段压缩的优点包括___
A. 可提高压缩比
B. 可降低压缩比
C. 可降低排气温度
D. 可简化工艺流程
【多选题】
[51]压缩机发生喘振时，可能导致的结果是___。
A. 使叶片强烈振动
B. 使整个机组和管网发生强烈振动
C. 损坏轴承、打碎叶片
D. 损坏密封
【多选题】
[52]甲醇的解冻机理是根据___。
A. 甲醇的凝固点较低
B. 其水合物的冰点较低
C. 与水相溶
D. 易燃易挥发
【多选题】
[53]关于冷却水参数变化对系统的影响,下列说法正确的有___。
A. 冷却水给水温度变高，对系统的冷却能力变小
B. 冷却水给水压力变高，对系统的冷却能力变大
C. 冷却水给水温度低，对系统的冷却能力变小
D. 冷却水给水压力变低，对系统的冷却能力变大
【多选题】
[54]装置负荷变高时，关于丙烯制冷压缩机的说法正确的有___。
A. 丙烯制冷压缩机吸入负荷变高
B. 丙烯制冷压缩机吸入负荷变低
C. 开大各最小流量返回
D. 关小各最小流量返回
【多选题】
[55]压缩机正常停车的原则是___。
A. 安全
B. 环保
C. 节约
D. 尽快停完
【多选题】
[56]系统进行N2置换时，要求___。
A. 系统内各调节阀关闭
B. 系统内各调节阀打开
C. 系统内各调节阀旁路关闭
D. 系统内各调节阀旁路打开
【多选题】
[57]三机润滑油主、辅油泵切换时，停辅油泵前要先确认___。
A. 复水系统正常
B. 主油泵出口压力正常
C. 主油泵运行正常
D. 辅油泵自启动按钮已投自动
【多选题】
[58]关于油路辅油泵备用时，以下说法错误的是___。
A. 入口手阀打开，出口手阀关
B. 出入口手阀都打开
C. 自启动按钮投手动
D. 出口手阀打开，入口手阀关
【多选题】
[59]关于三不动火，说法正确的是___。
A. 用火监护人不在现场不动火
B. 没有经过批准的用火作业许可证不动火
C. 防火防范措施不落实不动火
D. 没有经过安全教育不动火
【多选题】
[60]进入设备内部检修作业应具备的条件为___。
A. 有进设备作业许可证
B. 氧含量和可燃物含量分析合格
C. 有进设备监护人
D. 设备内外有对讲系统联系
【多选题】
[61]关于氮气的叙述，下列正确的是___。
A. 会使人中毒
B. 无味
C. 无色
D. 惰性气体
【多选题】
[62]安全阀的选用类型只要是以___来确定的。
A. 排泄量
B. 工艺介质
C. 排气能力
D. 喷嘴面积
【多选题】
[63]离心泵启动后，应注意___。
A. 电流是否正常
B. 压力是否正常
C. 泵体是否有泄漏
D. 泵体是否有异常
【多选题】
[64]屏蔽泵出口压力低，正确的处理方法是___。
A. 加注润滑油
B. 开大冷却水阀
C. 停泵清过滤网
D. 出口排气.
【多选题】
[65]《“三防”与抗震减灾安全管理规定》中“三防”指的是___。
A. 防风
B. 防汛
C. 防火
D. 防雷防静电
【多选题】
[66]安全阀内漏时，主要现象可能有___。
A. 振动
B. 噪音
C. 前后有温差
D. 系统压力降低
【多选题】
[67]油系统储压器作用___。
A. 能缓冲油系统油压变化幅度
B. 主油泵跳、辅油泵自启时，保证油压高于联锁值
C. 当润滑油压力低时可以长时间向润滑油总管供油
D. 当密封油液位低时可以向密封油高位油槽供油
【多选题】
[68]C-201开机前需要确认的工作包括以下：___
A. 中控室复位完毕
B. 室外复位完毕
C. 润滑油压在1.05Mpa左右，且较为稳定
D. 油箱放火炬阀投自动
【多选题】
[69]汽轮机单机试运时振动过大的原因有___。
A. 暖机时间及温度不够；
B. 升速过快；
C. 蒸汽带水；
D. 真空度下降。
【多选题】
[70]汽轮机高压级的主要损失有___。
A. 叶高损失
B. 叶轮摩擦损失
C. 漏汽损失
D. 湿气损失
【多选题】
[71]汽轮机叶片损坏原因___
A. 机械损伤；
B. 水击损伤；
C. 腐蚀和锈蚀损伤；
D. 叶片本身存在缺陷。
【多选题】
[72]汽轮机止推轴承的作用___
A. 承受转子的轴向力；
B. 确保转子与汽缸的定心作用；
C. 确保叶片与喷嘴的间隙；
D. 叶轮与隔板的定心作用。
【多选题】
[74]离心式压缩机转子组件包括___。
A. 叶轮；
B. 平衡盘；
C. 推力盘；
D. 密封动坏。
【多选题】
[75]安全阀的主要设置部位应该___。
A. 安装在受压容器上
B. 安装在受压管道及机泵出口处
C. 安装在因压力超高而导致系统停车，设备损坏，以及带来危险的设备上
D. 所有的设备都有安全阀
【多选题】
[76]根据润滑剂的流态情况，润滑剂可分为___几类。
A. 润滑油
B. 润滑膏
C. 润滑脂
D. 润滑粉末
【多选题】
[77]下列泵( )在启动时必须先开出口阀，___在启动时必须先关出口阀。
A. 往复泵
B. 离心泵
C. 螺杆泵
D. 齿轮泵
【多选题】
[78]膨胀机升速过程应___。
A. 手动慢慢调手操器升速
B. 调整密封气温度
C. 调整膨胀机入口温度
D. 调整膨胀机出口压力
【多选题】
[80]安全阀内漏时，主要的现象可能有___。
A. 振动
B. 噪声
C. 系统操作压力降低
D. 前后有温差或挂霜
【多选题】
[81]关于备用泵的低温防冻，下列说法正确的有___。
A. 防潮氮气保持畅通
B. 有冷却水的要保证冷却水畅通,旁路稍开
C. 定期盘车
D. 密封液液位正常
【多选题】
[82]下列不属于泵轴封装置作用的有___。
A. 平衡轴向推力
B. 防止汽蚀
C. 密封
D. 减震
【多选题】
[83]膨胀压缩机正常运行时应检查___。
A. 油箱液位
B. 油过滤器压差
C. 轴承温度
D. 冷却水是否畅通
【多选题】
[84]关于离心泵的保护措施，下列说法正确的有___。
A. 电机接地
B. 出口装止逆阀
C. 入口装过滤器
D. 轴向力平衡装置
【多选题】
[85]汽轮机叶片损坏原因___。
A. 机械损伤；
B. 水击损伤；
C. 腐蚀和锈蚀损伤；
D. 叶片本身存在缺陷。
【多选题】
[86]汽轮机止推轴承的作用___。
A. 承受转子的轴向力；
B. 确保转子与汽缸的定心作用；
C. 确保叶片与喷嘴的间隙；
D. 叶轮与隔板的定心作用。
【多选题】
[88]可以作为裂解气压缩机密封气体有___。
推荐试题
【多选题】
Which three connection types are available when configuring a vSwitch in the vSphere Web Client? (Choose three.)___
A. VMkernel Network Adapter
B. Physical Network Adapter
C. Virtual Machine Port Group for a Standard Switch
D. vMotion Network Adapter
E. vSAN Network Adapter
【多选题】
Which three features can be enabled for a new host cluster? (Choose three.)___
A. Storage Distributed Resource Scheduling
B. High Availability
C. Fault Tolerance
D. Distributed Resource Scheduling
E. Virtual SAN
【多选题】
An administrator receives a report that no real time statistics are available for a virtual machine in the vCenter Server inventory. Which two statements indicate likely causes of the problem? (Choose two.)___
A. The virtual machine is powered off.
B. The host containing the virtual machine is disconnected from vCenter Server.
C. There is insufficient real time data to display the information.
D. The vCenter Server service is not running.
【多选题】
Your manager has given you a bash script that retrieves data for ESXi 6.x host configurations. This data needs to be collected right after the installation of a host and must be run directly on the host. Which two actions can be used to run this script on an ESXi host? (Choose two.)___
A. Connect to the host with Ruby vSphere Console and run the script from there.
B. Enable SSH access from the Direct Console User Interface.
C. Enable the ESXi Shell from the
D. irect Console User Interface.
【多选题】
Which two are true about the Risk badge in vRealize Operations? (Choose two.)___
A. The Risk badge indicates potential future problems that may degrade the performance of the system.
B. Risks may require attention in the near future.
C. The Risk badge indicates problems that are degrading performance of the system.
D. Risks require attention now to correct system performance problems.
【多选题】
vSphere Update Manager allows which two virtual machine attributes to be upgraded? (Choose two.)___
A. Virtual machine firewall policies for NSX.
B. Software Packages in the virtual machine.
C. Virtual machine Hardware Version.
D. VMware Tools Upgrade.
【多选题】
What are two benefits of using NFS 4.1 with vSphere 6.x as compared to NFS 3? (Choose two.)___
A. NFS 4.1 supports Kerberos Authentication
B. NFS 4.1 supports multipathing
C. NFS 4.1 supports IPv6
D. NFS 4.1 supports hardware acceleration
【多选题】
Which three statements are true regarding Fault Tolerance? (Choose three.)___
A. Applications need to be continuously available to users.
B. Applications without native clustering capabilities can be protected.
C. Custom clustering solutions are complicated to configure and maintain.
D. Applications that have 16 vCPUs are supported.
E. Prevents application crashes by analyzing the workload and correcting problems.
【多选题】
Which two statements are true regarding VMware vSphere Flash Read Cache (vFRC)? (Choose two.)___
A. Cache fills and cache evictions happen in the granularity of a cache block size.
B. vFRC caches data from both read and write I/Os, but write I/Os are always serviced by the underlying storage.
C. vFRC caches data from both read and write I/Os, but write I/Os are always serviced by the underlying cache data.
D. Cache fills and cache evictions happen in the granularity of the disk block size.
【多选题】
What are two possible causes of Storage Distributed Resource Scheduler (SDRS) being disabled on one or more virtual machine disks in a datastore cluster? (Choose two.)___
A. The virtual machine has vSphere Fault Tolerance disabled.
B. The virtual machine is a template.
C. The virtual machine swap file is on a shared datastore.
D. The disk is a CD-ROM/ISO file.
【多选题】
An administrator attempts to install vCenter Single Sign-On Server. The installer returns an error message indicating that the installation failed. Prior to the installation, all setup prerequisites were met. The administrator has generated a vCenter Server Single Sign-On support bundle. Which two files should the administrator analyze to determine the cause of the failure? (Choose two.)___
A. Server\utils\logs\imsTrace.log
B. Server\utils\logs\install.txt
C. %TEMP%\utils\logs\vminst.log
D. %TEMP%\vminst.log
【多选题】
An administrator is unable to remove an ESXi 6.x host from a vSphere Distributed Switch. What are two likely reasons for this issue? (Choose two.)___
A. Vmkernel interfaces on the switch are still in use.
B. VM Network port group adapters are connected to different switch.
C. Physical NICs are migrated to different switch.
D. VM Network adapters are connected to this switch.
【多选题】
Which two Identity Sources are available to add for vCenter Single Sign-On authentication? (Choose two.)___
A. LocalOS
B. OpenLDAP
C. NIS as an LDAP Server
D. VCMSDS
【多选题】
What are three goals of resource management within a cluster? (Choose three.)___
A. To prevent virtual machines from monopolizing resources and to guarantee predictable service rates.
B. To exploit undercommitted resources and overcommit with graceful degradation.
C. To provide solutions to potential problems that you might encounter when using vCenter Server.
D. To control the relative importance of virtual machines and provide flexible dynamic partitioning.
E. To provide additional network administration capabilities.
【多选题】
Which three actions can be taken as a result of executing the vSphere Update Manager 6.x scan and remediation wizards? (Choose three.)___
A. Install and upgrade software in virtual machines.
B. Upgrade the firmware on ESXi host devices.
C. Upgrade and Patch ESXi hosts.
D. Install and update third-party software on hosts.
E. Upgrade virtual machine hardware.
【多选题】
Which two statements are true about deploying and using vSphere Replication? (Choose two.)___
A. ESXi hosts managed by a single vCenter Server instance require a connection between the two vSphere Replication appliances.
B. Sites managed by different vCenter Server instances require a connection between the two vSphere Replication appliances.
C. Sites managed by different vCenter Server instances require the use of Site Recovery Manager and a connection between the two vSphere Replication appliances.
D. ESXi hosts managed by a single vCenter Server instance require a single vSphere Replication appliance.
【多选题】
An administrator is attempting to power on a virtual machine, but the task is hanging at 95%. What three scenarios best explain why this problem is happening? (Choose three.)___
A. A virtual machine question is currently being posed to the administrator.
B. Another task for the virtual machine or other component is already in progress.
C. The VMware High Availability cluster has insufficient resources to guarantee failover.
D. The host has lost access to the storage device containing the virtual machine files.
E. The host is under resource contention and unable to power on the virtual machine.
【多选题】
Which three features are not supported when using Fault Tolerance in vSphere 6.x? (Choose three.)___
A. Virtual Volumes (VVOLS)
B. Storage vMotion
C. Virtual Machine Component Protection
D. vMotion
E. vSphere Distributed Switches
【多选题】
Which two storage controller configurations can be used with Virtual SAN? (Choose two.)___
A. SAS controllers in Passthrough mode
B. SAS controllers in RAID0 mode
C. SAS controllers in RAID1 mode
D. SAS controllers in RAID10 mode
【多选题】
Which three are requirements when using vMotion to move a virtual machine across vCenter Server systems? (Choose three.)___
A. Both vCenter Servers must be using Enhanced Linked Mode.
B. Both vCenter Servers must be in the same Single Sign-On Domain.
C. Time must be synchronized.
D. Duplicate VM MAC addresses must be configured.
E. Both vCenter Servers must have High Availability enabled on source and destination clusters.
【多选题】
Which two components can be used when configuring Enhanced Linked Mode? (Choose two.)___
A. vCenter Server Appliance
B. vRealize Operations Manager
C. vSphere Management Appliance
D. vCenter Server for Windows
【多选题】
An organization has a number of virtual machines that would benefit from Fault Tolerance. These include: <A single vCPU Apache Server> < A dual vCPU vCenter Server> < A quad vCPU SQL Server> <An eight vCPU Hadoop Server>. Which two virtual machines can be configured to use VMware Fault Tolerance? (Choose two.)___
A. Apache Server
B. vCenter Server
C. SQL Server
D. Hadoop Server
【多选题】
Which two badges are major badges in vRealize Operations? (Choose two.)___
A. Risk
B. Efficency
C. Workload
D. Faults
【多选题】
An administrator is deploying multiple Windows 2003 Virtual Machines from the same template. What two steps should be taken to avoid network conflicts? (Choose two.)___
A. Customize the guest operating system.
B. Install VMware Tools into the new virtual machines.
C. Copy the Microsoft Sysprep tools onto the vCenter Server system.
D. Ensure the e1000 vmnic is selected for each new virtual machine.
【多选题】
Which three conditions would prevent Storage I/O Control from being enabled on a group of datastores? (Choose three.)___
A. The datastores planned for the solution are used by different vSphere clusters.
B. A datastore planned for the solution is configured as a Raw Device Mapping file.
C. A datastore planned for the solution has three extents.
D. A datastore planned for the solution is configured as NFS.
E. The organization has an Enterprise license.
【多选题】
Which two actions are prerequisites to adding ESXi 6.x hosts to a vSphere Distributed Switch? (Choose two.)___
A. Verify that there is at least one Distributed Port Group on the Distributed Switch.
B. Verify that the Distributed Port Group have active uplinks configured in its teaming and failover policy.
C. Verify that the
D. istributed Switch has been configured with a Network Profile.
【多选题】
An organization has configured Distributed Power Management (DPM) on a vSphere 6 cluster. The organization wants to be alerted when an ESXi host has been powered down by DPM. Which two options represent the type and name of the alarm that would accomplish this? (Choose two.)___
A. DrsEnteringStandbyModeEvent
B. DrsEnteredStandbyModeEvent
C. Event-based
D. Condition-based
【多选题】
Which two allow for the disabling of Network Rollback operations? (Choose two.)___
A. Modifying the vpxd advanded configuration options and adding the config.vpxd.network.rollback key
B. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the<rollback> xml tag
C. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the <networkrollback> xml tag
D. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\firstboot\vpxd-service- spec.prop file and adjusting the <rollback> xml tag
【多选题】
An administrator is tasked with performing a vMotion migration of a virtual machine. The virtual machine is configured as follows: <vSphere Flash Read Cache (vFRC) enabled> <Is part of a Distributed Resource Cluster (DRS) Cluster> Which two statements are true? (Choose two.)___
A. Each ESXi host in the cluster supports multiple virtual flash resources.
B. Each ESXi host in the cluster supports one virtual flash resource.
C. DRS treats powered-on virtual machines with Flash Read Cache as having a preferred affinity to their current host and moves them only for mandatory reasons.
D. DRS treats powered-on virtual machines with Flash Read Cache as having a required affinity to their current host and does not move them.
【多选题】
An administrator is using the Host Failures to Tolerate Admission Control Policy for a vSphere High Availability ___ cluster. When configuring this setting on the cluster, the administrator sees this error message: <Insufficient resources to satisfy HA failover level on cluster > What are two likely causes for the error? (Choose two.)(AB)
A. The hosts in the cluster are disconnected.
B. A host in the cluster is displaying an HA error.
C.
D. istributed Resource Scheduler has not been configured on the cluster.
【多选题】
What are two ways to identify TCP/IP stack information? (Choose two.)___
A. Using the vSphere Web Client
B. Using esxcli network ip netstack
C. Using esxcfg-netstack
D. Using the vSphere Client
【多选题】
Which two actions are required when enabling vFlash Read Cache for a virtual machine's virtual disk? (Choose two.)___
A. A value in the Virtual Flash Read Cache text box must be entered.
B. A Flash Resource Pool for Cache size reservation must be entered.
C. The Device backing and the block size must be configured.
D. The
E. nable virtual flash host swap cache check box must be selected.
【多选题】
What two IT infrastructure components are virtualized by vSphere Essentials? (Choose two.)___
A. Networks
B. Applications
C. Storage
D. Management
【多选题】
When attempting to access a virtual machine, an administrator is unable to login using the vSphere credentials. What two options are probable causes of the authentication failure? (Choose two.)___
A. The vSphere credentials have not been granted permissions.
B. The vSphere credentials are granted read-only permissions.
C. The vSphere credentials are granted no-access permissions.
D. The vSphere credentials are not a member of the local administrator group.
【多选题】
An administrator is performing a scripted installation of ESXi 6.x. In which three locations does the script need to be? (Choose three.)___
A. PXE Server
B. HTTPS
C. FTP
D. NFS
E. VVOLs Datastore
【多选题】
In order for a company to meet regulatory requirements, all ESXi 6.x Hosts must be configured to direct logs to a syslog server. What are two ways ESXi hosts can configured for this action? (Choose two)___
A. Use the esxcli system syslog command.
B. Edit them in the ESXi host Advanced System Settings.
C. From the Syslog collector user interface of the Web Client.
D. Syslog logging is not available for
E. SXi Hosts.
【多选题】
Which three actions can be executed when an alarm is triggered? (Choose three.)___
A. Send an email.
B. Send an SNMP trap.
C. Run a script or command.
D. Run an Orchestrator workflow.
E. Send a trigger to syslog.
【多选题】
An administrator is attempting to power on a virtual machine, but is unable to do so. Which two reasons are probable causes of the failure? (Choose two.)___
A. Storage access to the virtual machine swap file has been lost.
B. One of the virtual machine VMDK files is locked.
C. Virtual machine is running CentOS 7.0 64-bit.
D. Virtual machine has Hyper-Threading enabled.
【多选题】
An administrator has configured a host profile so that ESXi 6.x hosts will point to the corporate NTP server for time synchronization. The NTP server is located at 10.0.30.213, but time has not been synchronized properly across the ESXi hosts. The administrator reviews Host Profile settings as shown in the Exhibit. Which two steps are required to resolve the issue? (Choose two.)___
A. Correct the NTP server IP address.
B. Check the host for host profile compliance.
C. Remediate the host based on the updated host profile.
D. Change the NTP server to the FQDN as IP Addresses are not supported.
【多选题】
An administrator is attempting to migrate a large Hadoop virtual machine using vMotion. The administrator notices a delay when the machine is quiesced. The Hadoop virtual machine is processing many transactions a second to an in-memory database. Which two actions would help reduce the amount of time needed to perform a vMotion on this virtual machine? (Choose two.)___
A. Use multiple NICs for the vMotion vmkernel port.
B. Use a 10Gbps Network card for the vMotion vmkernel port.
C. Add an additional management network to help transmit the data quicker.
D. Disable Fault Tolerance before performing the vMotion.
