【单选题】
以下哪项不是硫封罐的作用___。
A. 防止气体从液硫线进液硫池
B. 保护风机
C. 不使装置憋压
D. 提高操作压力
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答案
D
解析
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相关试题
【单选题】
烘炉曲线中一般120℃时候稳定时间较长,主要是为了脱除___。
A. 衬里的游离水
B. 瓦斯气中的游离水
C. 衬里的结晶水
D. 酸性气中游离水
【单选题】
装置停工吹扫蒸塔以后,塔的蒸汽线不能加盲板,主要是因为___。
A. 停工后没必要加盲板
B. 防止硫化亚铁自燃
C. 防止氮气泄漏
D. 防止蒸汽管道冷凝
【单选题】
在蒸汽管道投用时首先要进行___操作。
A. 加热
B. 冷却
C. 小流量暖管
D. 大流量暖管
【单选题】
硫磺催化剂装填时应在反应器内先装___。
A. 催化剂
B. 瓷球
C. 格栅
D. 不锈钢丝网
【单选题】
三级硫冷凝器采用双壳程结构,其中第一段发生 0.45MPa 低压蒸汽,第二段产生的乏汽经空冷器冷却后,凝结水去___使用。
A. 一级硫冷器
B. 二级硫冷器
C. 凝结水罐
D. 三级硫冷器
【单选题】
在硫冷凝器里气态硫的液化反应,错误的是___。
A. S8(气)→8S1(液)
B. S6(气)→6S1(液)
C. S4(气)→2S1(液)
D. S2(气)→2S1(液)
【单选题】
再生酸性气的主要成分是___。
A. 硫化氢、氨
B. 硫化氢、二氧化硫
C. 硫化氢、二氧化碳
D. 硫化氢、烃
【单选题】
硫磺装置设置排污点的作用是___。
A. 降低硫腐蚀
B. 提高液硫流动性
C. 降低硫分压
D. 防止管道堵塞
【单选题】
制硫装置停工时,需对催化剂进行热浸泡,其目的是除去催化剂上的___。
A. 硫酸盐
B. 积炭
C. 粉尘
D. 积硫
【单选题】
安全阀的开启压力是指___
A. 安全阀的定压
B. 安全阀达到最大泄放能力的压力
C. 设备的最高操作压力
D. 设备的操作压力
【单选题】
过程气管线伴热主要作用正确的是___。
A. 增加管内流动速度
B. 增加管内气化率
C. 防止过程气中水蒸汽冷凝
D. 防止过程气中硫蒸汽的冷却凝固
【单选题】
对于带气动阀门定位器的调节阀校准时,输入 ___来进行校准的。
A. 电信号
B. 电流信号
C. 流量信号
D. 压力信号
【单选题】
对于带电动阀门定位器的调节阀校准时,输入___来进行校准的。
A. 电信号
B. 电流信号
C. 流量信号
D. 压力信号
【单选题】
N-甲基二乙醇胺是一种___液体。
A. 淡蓝色
B. 淡黄色
C. 棕红色
D. 黑色
【单选题】
MDEA被氧化后,溶液颜色会呈___。
A. 淡蓝色
B. 淡黄色
C. 褐色
D. 黑色
【单选题】
蒸汽抽空器的作用是___。
A. 增大蒸汽流速
B. 提高管内压力
C. 提高管内流体温度
D. 形成真空
【单选题】
使用蒸汽抽空器时,应先___。
A. 开抽空器进口阀
B. 关抽空器出口阀
C. 开抽空器副线阀
D. 开抽空器蒸汽阀
【单选题】
蒸汽抽空器排出气体的压力比吸入口的压力___。
A. 高
B. 低
C. 一样
D. 不能确定
【单选题】
尾气焚烧炉点炉失败后用___吹扫后再重新点炉。
A. 蒸汽
B. 空气
C. 氮气
D. 无需吹扫
【单选题】
装置开车操作中引瓦斯烘炉中酸性气燃烧炉配风原则是___。
A. 瓦斯过剩,保证不完全燃烧
B. 保持燃烧炉温度大于800℃
C. 风和瓦斯按当量燃烧配比
D. 风过量,保证瓦斯完全燃烧
【单选题】
装置正常生产中酸性气燃烧炉配风比调节原则正确的是___。
A. 保持配风比恒定在2.1
B. 保证完全燃烧
C. 根据燃烧炉炉温调节
D. 保证过程气中硫化氢和二氧化硫含量比在2左右
【单选题】
装置正常生产中尾气焚烧炉配风比调节原则正确的是___。
A. 保持配风比在18左右
B. 保证完全燃烧
C. 根据焚烧炉炉温调节
D. 保证尾气中硫化氢和二氧化硫含量比在2左右
【单选题】
酸性气燃烧炉内进行的反应在___时间内基本完成。
A. 1秒
B. 4秒
C. 6秒
D. 9秒
【单选题】
在酸性水燃烧炉中,氨参与反应后的产物主要是___。
A. 一氧化氮和水
B. 氮气和水
C. 二氧化氮和水
D. 氮气和氢气
【单选题】
酸性气浓度低,装置的能耗将___。
A. 上升
B. 下降
C. 基本不变
D. 上升下降都有可能
【单选题】
酸性气燃烧炉烧氨不完全的危害是___。
A. 造成设备腐蚀
B. 造成设备管道结盐堵塞
C. 有爆炸危险
D. 硫磺质量不合格
【单选题】
液硫池气相部分安装温度计是为了防止硫磺___。
A. 燃烧
B. 中毒
C. 爆炸
D. 凝固。
【单选题】
检查运行装置中有无硫化氢气体泄漏,一般用___。
A. PH试纸
B. 鼻子闻气味
C. 湿润的硝酸铅试纸
D. 便携式H2S报警仪
【单选题】
液硫在___时流动性最好。
A. 130-160℃
B. 172±2℃
C. 170±2℃
D. 160±2℃
【单选题】
催化剂中毒有___两种情况。
A. 短期性和长期性
B. 短期性和暂时性
C. 暂时性和永久性
D. 暂时性和长期性
【单选题】
催化剂具有___特性。
A. 改变反应速度。
B. 改变化学平衡。
C. 既改变反应速度又改变化学平衡
D. 反应速度和化学平衡均不改变,只改变反应途径。
【单选题】
硫化氢在过量空气中燃烧时其生成物为___。
A. COS
B. SO2
C. S
D. SO3
【单选题】
开工对催化剂升温的目的是___。
A. 脱除吸附水
B. 增加催化剂的比表面积
C. 增加强度
D. 提高催化剂的活性
【单选题】
工艺设备的接地是为了___的作用,防止火灾,防止爆炸事故的发生。
A. 防止静电
B. 避免雷击
C. 防止静电和避免雷击
D. 防止着火
【单选题】
硫磺装置生成硫最多的部位是___。
A. 反应炉
B. 一级克劳斯反应器
C. 二级克劳斯反应器
D. 换热器
【单选题】
硫化氢比值控制仪AIC11201中的A代表___。
A. 报警
B. 分析
C. 显示
D. 控制
【单选题】
硫磺克劳斯反应器投用前升温的作用以下哪项不正确___。
A. 检查系统是否畅通
B. 催化剂预硫化
C. 烘反应器衬里
D. 防止生产时积硫
【单选题】
带法兰的膜片式压力变送器选用场合正确的是___。
A. 易堵、易结晶、腐蚀性强的介质
B. 微压力测量
C. 大气腐蚀场所
D. 任何场合都适用
【单选题】
压力变送器测量部分的测压敏感元件产生的测量力的大小范围约50-100N,最高不超过___N。
A. 120
B. 130
C. 140
D. 150
【单选题】
用蒸汽吹扫换热器管程时一般首先将蒸汽引入壳程,蒸汽单单吹扫换热器管程,会引起不同的管道___引起泄漏。
A. 破裂
B. 膨胀
C. 扭曲
D. 收缩
推荐试题
【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? ___
A. 6
B. 7
C. 10
D. 11
【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.
【单选题】
An administrator attempts to enable Enhanced vMotion Compatibility (EVC) on a cluster. The operation results in a compatibility error, as shown in the exhibit. What is the likely cause of this error? ___
A. The CPUs in the ESXi host are not AMD CPUs.
B. The CPUs in the ESXi host do not support hardware virtualization capabilities.
C. The XD/NX CPU features have not been enabled in the BIOS of the server.
D. There is no shared storage between the hosts in the cluster.
【单选题】
What condition would prevent an administrator from creating a new VMFS3 datastore on an ESXi 6.x host using the vSphere Web Client? ___
A. A VMFS3 datastore cannot be created on an ESXi 6.x host.
B. The VMFS3 kernel module is not loaded.
C. A VMFS3 datastore cannot be mounted on an ESXi 6.x host.
D. VMFS3 datastores are not compatible with virtual machines created on an
E. SXi 6.x host.
【单选题】
During a new vSphere Distributed Switch configuration, where does the Maximum Transmission Unit (MTU) value get modified? ___
A. Uplink Settings
B. Switch Settings
C. Portgroup Settings
D. NIC Teaming Settings
【单选题】
A small company wants to use VMware products for its production systems. The system administrator needs to recommend a solution that will deliver High Availability to the company's production applications. What is minimum vSphere offering that will support this requirement? ___
A. vSphere Essentials
B. vSphere Essentials Plus
C. vSphere Hypervisor
D. vSphere Standard
【单选题】
Which scenario shows a reason for VMware Tools failing to install? ___
A. Virtual machine has a CD-ROM configured.
B. Guest OS Antivirus is blocking the VMware Tools installation.
C. Guest OS has 64-bit ldd (list dynamic dependencies) utility installed.
D. Virtual machine is powered on.
【单选题】
An administrator is configuring an ESXi 6.x host to use multiple NICs to resolve a management network redundancy error. After configuring a second NIC, the server is not able to communicate when the primary connection is taken down. The administrator analyzes the Exhibit shown here. Based on the exhibit, what is the likely cause of the issue? ___
A. vmnic4 is not attached to a vSwitch.
B. vmnic2 is not connected to a physical switch.
C. E1000 is the incorrect NIC
D. river for this card.
【单选题】
What information is required as part of an interactive ESXi 6.x installation? ___
A. Keyboard layout
B. IP Address
C. Root password
D. DNS information
【单选题】
What is the default load balancing policy for a newly created VMkernel port on a vSphere Distributed Switch? ___
A. Route based on orginating virtual port ID
B. Route based on IP Hash
C. Route based on source mac address
D. Route based on physical NIC load
【单选题】
An administrator deploys vCenter Server using the embedded Platform Services Controller. After testing the deployment for a couple of months, it is determined that the environment would be better served with an external Platform Services Controller. What should the administrator do to meet this new requirement? ___
A. Deploy a fresh instance of vCenter Server with an external Platform Services Controller.
B. Perform a fresh install of an external Platform Services Controller.
C. Migrate the embedded Platform Services Controller to an external Platform Services Controller.
D. Upgrade the embedded Platform Services Controller to an external Platform Services Controller.
【单选题】
Why are some virtual machines orphaned after rebooting a High Availability (HA) enabled host? ___
A. The Orphaned virtual machines have HA restart disabled.
B. The Orphaned virtual machines moved recently and the change did not persist.
C. The host is attached to failed storage.
D. The host just came out of maintenance mode.
【单选题】
Which vSphere 6 Standard Edition feature will allow an organization to ensure that critical multi-threaded applications have the maximum possible uptime? ___
A. Fault Tolerance
B. High Availability
C. Distributed Resource Scheduler
D. App HA
【多选题】
An application running in a virtual machine is experiencing performance issues. When utilizing performance monitoring utilities, it is noted that the CPU Utilization of the application is at 100%. Which two scenarios are probable causes of the CPU contention for the application? (Choose two.)___
A. There is a network I/O constraint.
B. There is a storage I/O constraint.
C. There is insufficient disk space assigned to the virtual machine.
D. The application is not virtualization aware.
【多选题】
A Fault Tolerance (FT) virtual machine with four vCPUs is experiencing high latency when performing ICMP and Application tests. What are three potential causes that may be attributing to this latency? (Choose three.)___
A. The FT network has insufficient bandwidth and is running on a 1GB Link.
B. The FT network is on a particularly high latency link.
C. The FT network has been configured with Network I/O Control.
D. The FT virtual machine is running an e1000 network adapter.
E. The
F. T virtual machine is running on poor performing network-based storage.
【多选题】
A virtual machine is experiencing performance issues. The following performance metrics are observed: <CPU usage value for the virtual machine is above 90%> < CPU ready value for the virtual machine is above 20%> Which two activities will likely resolve the performance issues? (Choose two.)___
A. Set a CPU reservation for the virtual machine.
B. Increase the CPU limit on the virtual machine.
C. Decrease CPU shares equally for all virtual machines on the host.
D. Increase CPU shares equally for all virtual machines on the host.
【多选题】
An administrator is upgrading a vSphere Distributed Switch. The existing switch is version 6.0 and the administrator wants to upgrade to the latest version possible. The environment contains several ESXi 6.1 hosts. Which two options are available to ensure that the upgraded switch will be compatible with these hosts? (Choose two.)___
A. Upgrade the vSphere Distributed Switch to 6.0
B. Upgrade the ESXi 5.5 hosts to version 6.0, then upgrade the vSphere Distributed Switch to 5.5
C. Upgrade the vSphere Distributed Switch to 5.1
D. Upgrade the
E. SXi host switches to 5.5, then upgrade the vSphere Distributed Switch to 5.5
【多选题】
An administrator attempts to create a Thick Provisioned Virtual Disk (VMDK) on an NFS datastore; but it fails. Which two reasons would explain the failure? (Choose two.)___
A. Datastore is on an NFS 3 storage server that does not support Hardware Acceleration
B. Datastore is on an NFS 4.1 storage server
C. Only VMFS datastores support "Thick Provisioned" VMDK
D. The NFS datastore was not created on a "Thick Provisioned" device
【多选题】
Which two NFS Protocol versions does vSphere 6 support? (Choose two.)___
A. Version 3
B. Version 3.1
C. Version 4
D. Version 4.1
【多选题】
Which three operations occur during a cold migration of a virtual machine? (Choose three.)___
A. The virtual machine disks are moved if the datastore is being changed.
B. The virtual machine is registered with the destination server.
C. The source virtual machine is removed from the old hosts.
D. The virtual machine hardware is upgraded.
E. The virtual machine files are quiesced prior to the migration.
【多选题】
A 4 GB Memory virtual machine is experiencing extended memory issues, as shown in the Exhibit. What potential issues could be attributed to this memory pressure?___
A. A limit is imposed on the virtual memory of this virtual machine.
B. The Balloon driver has been uninstalled.
C. A limit has been imposed on the Virtual CPU of the virtual machine.
D. Storage IO control has been enabled for the virtual machine causing the swapped memory.
【多选题】
You are creating a virtual machine in the Web Client using the New Virtual Machine wizard. Which two steps are required? (Choose two.)___
A. Select a valid name.
B. Select a cluster for the compute resource.
C. Select a network adapter.
D. Select the virtual machine compatibility.