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【单选题】
交流主汇流条(ACESSBUS)正常情况下由什么汇流条供电:()___
A. 主变压整流装置(ESSTR)
B. 1号交流汇流条(ACBUS1)
C. 2号交流汇流条(ACBUS2)
D. 静变流机
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答案
B
解析
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相关试题
【单选题】
静变流机安装在()___
A. 主起落架舱
B. 右后电子舱(此答案有误,应为“右前电子舱”)
C. 左电子舱
D. 驾驶舱
【单选题】
静变流机何时工作:()___
A. 一直工作;
B. 当只有电瓶电源供电时;
C. 当有一侧发动机IDG故障时。
D. 用专门的控制电门控制其供电
【单选题】
普通型和增强型电源系统的主要设备差异是()___
A. 增强型中无EGIU1,EGIU2,APUGCU和GPCU
B. 普通型中无GAPCU
C. 增强型中无GAPCU
D. 以上A+B
【单选题】
启动APU时()___
A. 如果有外电源可以把电瓶电门断开后启动
B. 只有电瓶供电时电瓶电压应高于25V
C. 没有外电源时,电瓶不应完成APU火警测试
D. 只能用外电源起动APU
【单选题】
人工断开IDG,应在驾驶舱按下IDG脱开按钮()___
A. 不超过3秒钟
B. 超过5秒钟
C. 无特别要求
D. 直到IDG故障灯熄灭
【单选题】
人工断开IDG,应在驾驶舱按下IDG脱开按钮:()___
A. 不超过3秒钟
B. 超过5秒钟;
C. 无特别要求
D. 直到IDG故障灯熄灭
【单选题】
如果SD电源页面上无电瓶参数的显示,可能原因是()___
A. 电瓶无电
B. 电瓶放电过量
C. BCL故障
D. GCU故障
【单选题】
什么情况下,“IDG脱开电门”上的“FAULT”灯亮()___
A. IDG的滑油温度高
B. IDG的滑油压力低
C. IDG的滑油压力高
D. 以上A+B
【单选题】
什么情况下,发生过载厨房电源将会全部断开()___
A. 在空中由两台IDG供电
B. 在地面仅由APU发电机供电
C. 在地面由外电源供电
D. 只要发生过载情况
【单选题】
什么时候电瓶接触器会自动进行断开保护()___
A. 在飞行中,电瓶电压低于23伏15秒后
B. 在地面,电瓶电压低于23伏15秒后
C. 无论何时,电瓶电压低于23伏15秒后
D. 在地面电瓶电压低于25伏15秒后
【单选题】
什么时候在电源控制面板上的电瓶故障灯会亮()___
A. 电瓶电门放断开位
B. 电瓶放电电流过大
C. 电瓶过热和内部短路
D. 电瓶接触器断开
【单选题】
失去正常供电的紧急情况下,由什么提供电源()___
A. 主变压整流装置(ESSTR)
B. 由蓝液压系统驱动的应急发电机(CSM/G)
C. 外部电源
D. 一台发动机驱动的发电机
【单选题】
失去正常供电的紧急情况下,由什么提供电源?()___
A. 主变压整流装置(ESSTR)
B. 由兰液压系统驱动的应急发电机(CSM/G)
C. 外部电源
D. 一台发动机驱动的发电机
【单选题】
一旦变压整流器发生保护断开()___
A. 可以拔跳开关来重置
B. 可以在MCDU上重置
C. TR上没有重置手段
D. 不需重置
【单选题】
以下关于单独供电说法正确的是()___
A. 在一个汇流条上,只能有一个电源供电
B. 在一个汇流条上,可由多个电源同时供电
C. 在一个汇流条上,同一时间,可由多个电源供电
D. 在一个汇流条上,同一时间,只能由一个电源供电
【单选题】
以下关于电瓶电门说法正确的是()___
A. 用于控制电瓶的供电、充电及电压指示
B. 电瓶电门放“OFF”位,将使APU停车
C. 用于控制电瓶与直流电瓶汇流条的连接及指示电瓶故障
D. 用于控制IDG发电机控制和保护
【单选题】
以下关于电源接口组件(EGIU)说法正确的是()___
A. 是专门为GCU和GPCU供电的装置
B. 两部EGIU可以互换
C. 是将GCU和GPCU的离散信号转换成数字信号的组件
D. 它也是与CFDS的接口组件
【单选题】
以下关于交流电源自动供电顺序说法正确的是()___
A. 最后选择的电源为供电电源
B. IDG为首选供电电源
C. 只要应急发电机发电正常,主交流汇流条上就由它供电
D. 没有自动供电顺序,只能人工选择
【单选题】
应急发电机(CSM/G)的主要参数为()___
A. 28V直流、5KVA
B. 115V、400HZ、3φ、90KVA
C. 115V、400HZ、单相、5KVA
D. 115V、400HZ、3φ、5KVA
【单选题】
应急发电机(CSM/G)主要组成是()___
A. 控制valve,液压恒速马达和发电机
B. 控制valve和发电机
C. 变压装置和稳压电路
D. 电子恒频和发电机
【单选题】
应急发电机组件(CSM/G)安装在()___
A. 左电子舱
B. 右前电子舱
C. 主起落架舱
D. 前起落架舱
【单选题】
应急发电系统主要组成是()___
A. 应急发电机组件(CSM/G)、应急发电机控制组件、接触器、控制测试面板、自藕变压器
B. 应急发电机组件(CSM/G)、两个电瓶、接触器、应急发电机控制组件
C. 应急发电机组件(CSM/G)、静变流机、接触器、控制测试面板、自藕变压器
D. 应急发电机组件(CSM/G)、应急发电机控制组件、接触器、液压兰系统电动泵
【单选题】
有关发电机控制组件说法正确的是()___
A. GCU1、GCU2、GCU3和GPCU,应急GCU是一样的可互换
B. 只有GCU1和GCU2是一样的,另外三个都有不同功能
C. 能通过程序销钉改变GCU1、2、3的功能,它们可互换
D. 它们都不能互换
【单选题】
在ECAM的电源系统页面上()___
A. 可以看到IDG的滑油入口温度和滑油压力数值
B. 可以看到闪烁的IDG滑油温度当其高于147OC时
C. 无法看到电瓶电流的方向
D. 无法看到IDG的脱开情况
【单选题】
在GCU内部的准备好电路的功用是()___
A. 将发电机起动完毕
B. 将发电机电压调节在正常范围
C. 当发电机各种参数及电路正常后,为自动接通发电机输出做好准备
D. 以上A、B正确
【单选题】
在IDG内部的发电机建立电压过程中,最主要的是()___
A. 恒速装置必须先恒速
B. 必须要有正反馈励磁
C. 发电机控制电门要放断开位置
D. 以上均正确
【单选题】
在IDG与发动机附件齿轮箱脱开复位时,应注意的是()___
A. 必须起动发动机才能复位
B. 必须是发动机转子在静止状态
C. 必须在飞机通电状态下
D. 必须更换IDG滑油后
【单选题】
在SD电源页面上,当IDG内的滑油温度大于147℃时,将会出现什么指示()___
A. 温度指示将变为琥珀色
B. 指示值将闪烁但仍为绿色
C. 指示值变为琥珀色并闪烁
D. 无任何变化
【单选题】
在地面用APU起动好两台发动机后,按出电源控制面板上的汇流条连接(BUSTIE)按钮()___
A. 对电网供电没有影响
B. 1号交流汇流条失去电源,1号直流汇流条和2号直流汇流条得到电源
C. 控制面板上的“主交流供电(ACESSFEED)”按钮FAULT灯亮,需人工按出
D. APU发电机将不发电
【单选题】
在电源控制面板上的“厨房”控制电门的功用是()___
A. 自动和人工控制厨房电源的通断
B. 指示厨房电源的断开
C. 复位功能
D. 以上均是
【单选题】
在电源控制面板上的“汇流条连接”电门(BUSTIE)放“OFF”位置,将使()___
A. 断开交流自动转换功能
B. APU发电机不能向电网供电
C. 外电源不能向整个电网供电
D. 以上均正确
【单选题】
在电源控制面板上的外电源可用灯亮后,但接不通外电源,可能原因是()___
A. APU发电机正在向飞机电网供电
B. 发电机控制电门在断开位置
C. “汇流条连接”电门(BUSTIE)在断开位置
D. 以上A+B
【单选题】
在电源系统中,各种参数值超出正常范围后,会有怎样的指示()___
A. 数字变为红色
B. 数字变为琥珀色并闪烁
C. 数字仍为绿色但闪烁
D. 数字变为琥珀色
【单选题】
在电源系统中,唯一的一个三级警告(红色警告)是()___
A. 在“应急发电机状态”
B. IDG滑油压力低
C. 发电机故障
D. 交流主汇流条无电
【单选题】
在飞行中,以下说法正确的是()___
A. 电瓶始终连在电瓶汇流条上
B. 电瓶充电限制器控制电瓶放电,并控制电瓶与电网接触器的通断
C. 充电电流小于4A时BCL立即断开接触器停止充电
D. 以上均正确
【单选题】
在更换整体驱动发电机(IDG)后:()___
A. 加IDG滑油时必须接溢流管并检查油位;
B. 必须测试IDG的脱开和重新衔接功能;
C. 不需要试车。
D. 左右IDG油面不同
【单选题】
在紧急电源面板上,发生电子舱烟雾后按出1号发电机在线(GEN1LINE)按钮()___
A. 1号发动机不再工作,GEN1按钮里的FAULT灯亮
B. 机翼油箱左1和右1泵仍由1号发动机供电
C. GCL1和GCR1仍然闭合
D. 整个电网将失去电源
【单选题】
在空中,电源控制面板上的厨房按钮上的“FAULT”灯亮是因为:()___
A. 厨房设备有故障;
B. 机上用电超负荷且厨房供电被断开;
C. 一台发电机故障
D. 以上A、B正确
【单选题】
在什么情况下,冲压涡轮会自动放出:()___
A. 当飞机在空中,1号和2号交流汇流条失去电源且空速大于100海里;
B. 当飞机在空中,且兰电动泵失效的情况下;
C. 当飞机在空中,电瓶可用且兰液压系统出现低压
D. 无论在空中还是地面,只要1号和2号交流汇流条失去电源
【单选题】
在使用地面勤务供电时(MAINT电门ON)()___
A. 可以检查液压油箱油量表
B. 可以开关货舱门(用电动泵)
C. 可以冲洗马桶
D. 以上均正确
推荐试题
【多选题】
Which two correct virtual machine advanced configuration parameters will accomplish this? (Choose two.)___
A. isolation.device.edit.disable = “FALSE”
B. isolation.device.edit.disable = “TRUE”
C. isolation.device.connectable.disable = “FALSE”
D. isolation.device.connectable.disable = “TRUE”
【多选题】
Which three statements are correct regarding booting an ESXi Host from Fibre Channel SAN? (Choose three.)___
A. Direct connect topology is supported.
B. Each host must have its own boot LUN.
C. ESXi hosts do not require local storage.
D. Multipathing to a boot LUN on an active-passive array is supported.
E. Hosts can share one common boot LUN.
【多选题】
Which two tasks should a vSphere administrator perform if the vmkernel log reports VMFS metadata errors? (Choose two.)___
A. contact VMware technical support
B. reformat the datastore
C. check the device with VOMA
D. ignore the messages
【多选题】
Which two statements are true for a vCenterServer user account that is used for vSphere Data Protection (VDP)? (Choose two.)___
A. The user account must be assigned with Administrator role.
B. The password for the user account cannot contain spaces.
C. The user account should be created in the Single Sign-On domain
D. The user account cannot inherit required permissions from a group role.
【多选题】
Which three storage protocols are supported by Virtual Volumes? (Choose three.)___
A. FCIP
B. FCoE
C. iSCSI
D. NFS v3
E. NFS v4
【多选题】
A vSphere administrator observes a CPU spike on one of the web servers (view the Exhibit.) Which two statements can describe the cause of this activity? (Choose two.)___
A. The network packet size is too large.
B. VMware Tools is not installed.
C. Disk latency is present on the datastore.
D. The network packet size is too small.
【多选题】
Which three operations can cause VMFS metadata updates? (Choose three.)___
A. Restarting a VM using the guest OS.
B. Launching a VM console.
C. Migrating a VM with vMotion.
D. Powering a VM on or off.
E. Expanding a VMFS datastore.
【多选题】
*What two services run on all nodes in a vCenter Server HA cluster? (Choose two.)___
A. vmware-vmon
B. vmware-vpostgres
C. vmare-rbd-watchdog
D. vmware-vcha
【多选题】
Which two statements are true regarding Auto Deploy in version 6.5? (Choose two.)___
A. Auto Deploy can be configured and managed via PowerCLI.
B. Auto Deploy can be configured and managed via the vSphere Client.
C. Auto
D. eploy can be configured and managed via the vSphere Web Client.
【多选题】
What three options can improve network performance for a virtual machine? (Choose three.)___
A. MLD
B. TSO
C. NetFlow
D. LRO
E. SR-IOV
【多选题】
Which two storage technologies are supported for MSCS? (Choose two.)___
A. NFS
B. VAAI
C. iSCSI
D. FC
【多选题】
When upgrading a VMware vSAN cluster to version 6.5, which two tasks must be completed to comply with upgrade requirements and VMware-recommended best practices? (Choose two.)___
A. Use RVC to upgrade the hosts.
B. Use the latest available ESXi version.
C. Back up all VMs.
D. Use only the “Full data migration” maintenance mode option.
【多选题】
What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)___
A. Support for 4k native disks
B. Support for 512e disks
C. GPT storage device partitioning
D. Automatic space reclamation
【多选题】
Which two statements describe why a vSphere DRS cluster would report load imbalance? (Choose two.)___
A. The configured migration threshold is too high.
B. The configured migration threshold is too low.
C. DRS is configured for Partially Automated.
D. Enhanced vMotion Compatibility (EVC) is enabled.
【多选题】
A vSphere Administrator must ensure that vCenter Server service is running in a domain user account rather than Local System Account. To accomplish this, the user account should have which two permissions? (Choose two.)___
A. Log on as a service.
B. Act as part of the operating system.
C. Log on as a batch job.
D. Log on locally.
【多选题】
A virtual machine fails to power on after being deployed from a template. What two remediation steps could correct this issue? (Choose two.)___
A. Increase CPU reservation
B. Decrease memory reservation
C. Increase memory reservation
D. Increase datastore capacity
E. Decrease CPU reservation
【多选题】
Which three directories are available under the vcsa-cli-installer folder of the vCenter Server Appliance installation media? (Choose three.)___
A. \mac
B. \ovftool
C. \migration-assistant
D. \win32
E. \lin64
【多选题】
What are three considerations when booting ESXihost from SAN software FCoE? (Choose three.)___
A. The VMware_FCoE_vSwitch that the installer automatically created cannot be changed.
B. Boot LUN cannot be shared with other hosts even on shared storage.
C. Multipathing is not supported at pre-boot.
D. Software FCoE boot configuration cannot be changed from within
E. SXi.
【多选题】
Which two choices are applicable to vSphere Availability? (Choose two.)___
A. Heartbeat Datastores
B. VM Startup/Shutdoown
C. Power Management
D. Admission Control
【多选题】
A user is a member of groups A and B. -VM10 and VM20 are in VM Folder. -Group A is assigned permission “Read-only” on VM Folder. What two configurations will allow the user to edit the settings for only VM10? (Choose two.)___
A. Assign group B permission “virtual machine power user” to VM10.
B. Assign group B permission “virtual machine console user” to VM10.
C. Assign group A permission “virtual machine console user” to VM10.
D. Assign group A permission “virtual machine power user” to VM10.
【多选题】
Which two new vSphere 6.5 features enable an Administrator to locate configuration options when creating or editing host profiles more easily than in previous versions? (Choose two.)___
A. Add the configuration option to favorites.
B. Navigate the option tree.
C. Search for the configuration option.
D. Copy the configuration option from a different profile.
【多选题】
What are the two valid storage controller types for VMs on ESXi 6.5? (Choose two.)___
A. FCoE
B. SATA
C. NVMe
D. iSCSI
【多选题】
Which two options can optimize conversion with VMware Converter? (Choose two.)___
A. Disable real-time antivirus scanners.
B. Remove the source from Active Directory.
C. Remove third-party device drivers.
D. Exclude diagnostic partitions from conversion.
E. Disable Volume Shadow Copy (VSS).
【多选题】
vSphere Availability considers which two factors for virtual machine restarts? (Choose two.)___
A. Host Isolation Response
B. file accessibility
C. NUMA node size
D. resource reservations
【多选题】
Which two virtual NICs support Wake-on-Lan to resume a virtual machine that is in standby mode? (Choose two)___
A. Flexible
B. E1000E
C. E1000
D. vmxnet 3
【多选题】
Which two logs should be examined to troubleshoot a Windows vCenter Server upgrade failure? (Choose two.)___
A. vminst.log
B. vim-um-msi.log
C. firstboot.log
D. pkgmgr.log
【多选题】
Which are two supported storage primitives for VAAI NAS? (Choose two.)___
A. Full File Clone
B. Reserve Space
C. hardware assisted locking
D. block zeroing
【多选题】
Which two parameters must be configured for Windows in-guest disk mirroring? (Choose two.)___
A. scsi#.returnNoConnectDuringAPD = “FALSE”
B. scsi#.terminateVMOnPDL = “TRUE”
C. scsi#.returnBusyOnNoConnectStatus = “FALSE”
D. scsi#.returnNoConnectDuringAPD = “TRUE”
【多选题】
Which two items are required to enable NPIV in a virtual machine? (Choose two.)___
A. use of physical RDMs
B. physical HBA support
C. use of virtual disks
D. hardware version 11 or higher
【多选题】
A vSphere Administrator has VM Component Protection (VMCP) enabled, but the VM was not restarted when one of the VMFS datastores experienced an All Paths Down (APD) failure. What two scenarios would explain why the virtual machine was not restarted? (Choose two.)___
A. VM Monitoring is required in order for VMCP to failover during an APD event.
B. VMware Tools is not installed on the guest operating system for the VM.
C. Insufficient Capacity is available on the failover ESXi hosts.
D. The APD failure was corrected before the VM could be restarted.
【多选题】
What are two requirements in order to restore a Resource Pool Tree from a snapshot? (Choose two.)___
A. vSphere DRS must be turned on.
B. A restore can only be performed on a vSphere DRS cluster within the original vCenter Server.
C. vSphere
D. RS must be turned off.
【多选题】
Which three vSphere features are compatible with vSphere Replication? (Choose three.)___
A. vSphere High Availability
B. vSphere Fault Tolerance
C. vSphere Storage
D. RS
【多选题】
What two VMware Remote Console Options can be defined in the virtual machine settings? (Choose two.)___
A. Boot Delay
B. Maximum number of sessions
C. Guest OS lock
D. Total video memory
【多选题】
VMware Converter can import a powered off virtual machine from which two virtual machine platforms?(Choose two.)___
A. Microsoft Hyper-V
B. Citrix Xen
C. VMware Workstation
D. Linux with KVM
【多选题】
Which two options allow storage space reclamation? (Choose two.)___
A. Use VMFS6 datastores.
B. Use esxcli storage vmfs unmap.
C. Use the SAN console (management tool).
D. Use the vSphere Web Client.
【多选题】
An administrator must reprovision 25 hosts with a new image profile that he has created. Which two methods can the administrator use to change the image profile? (Choose two.)___
A. From the vSphere Web client home page, select the Deploy Rules tab in the Auto Deploy section.
B. Run the Copy-Deploy Rule and specify the Replace Item parameter with Power CLI.
C. From the vSphere Web client home page, select the Assign Rules tab in the Auto
D. eploy section.
【多选题】
What are three parameters for traffic filtering or marking? (Choose three.)___
A. Protocol
B. Traffic Direction
C. DSCP value
D. virtual Port ID
【多选题】
The vSphere administrator must change the path selection policy (PSP) to comply with best practices. Which two interfaces can be used to change the PSP? (Choose two.)___
A. ESXi shell
B. vSphere Client
C. ESXi host client
D. vSphere Web Client
【多选题】
In what two ways can Storage DRS load balance virtual machines? (Choose two.)___
A. anti-affinity rules
B. virtual storage controller
C. guest OS family
D. I/O latency
【多选题】
What two reasons can explain why a host cannot be removed from a vSphere Distributed Switch? (Choose two.)___
A. There are virtual machine network adapters connected to the switch.
B. There are blocked ports on the switch.
C. There are LACP LAGs configured on the switch.
D. There are VMkernel network adapters connected to the switch.
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