To prevent possible failures or issues during a vSphere upgr_答案

【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

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What is the command for updating an ESXi host?___

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C. esxcli software update –d “/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”

D. esxupdate software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip

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C. When there is more than one VM-Host affinity rule in a vSphere

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Which two statements are true about Highly Available vSphere Auto Deploy infrastructure? (Choose two.)___

A. It helps prevent data loss.

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C. It requires two or more Auto

D. eploy servers.

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The virtual machine log rotation size can be changed for all VMs by which two interfaces? (Choose two.)___

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An attempt to delete NFS datastore from a ESXi host returns the error: Sysinfo error on operation returned the following status:< Busy> Which two statements could explain this failure? (Choose two.)___

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APU低压valve有几个电马达（）___

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IDG冷却的循环燃油正常情况下回到哪个油箱（）___

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发动机的低压燃油关断valve什么时候关闭（）___

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飞机爬升过程中，如果缝翼收回，则由哪个油箱供油（）___

A. 外侧油箱

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飞机燃油系统中，共有几个主燃油泵（）___

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飞机上有几个油箱储存燃油（）___

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飞机上有几台计算机用于燃油量的指示（）___

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给飞机加油时，加油valve什么时候打开（）___

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空中，内侧油箱中的吸油旁通valve在什么时候工作（）___

A. 所有燃油泵不工作

B. 中央2个燃油泵停止工作

C. 左内侧1个燃油泵停止工作

D. 右内侧1个燃油泵停止工作

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每台发动机的低压燃油关断valve有几个直流电马达（）___

A. 1个

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哪个油箱安装有满油位传感器（）___

A. 内侧油箱

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内侧油箱中的吸油旁通valve在什么时候工作（）___

A. 所有燃油泵不工作

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燃油控制面板上的方式选择电门控制哪个油箱的燃油泵（）___

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如果APU低压燃油valve的一个电马达发生故障，会出现什么情况（）___

A. valve完全关闭

B. valve关一些

C. valve位置不变

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如果FQIC一个通道失效，下面哪种情况不会出现（）___

A. FQIC正常工作

B. 燃油量指示不准确

C. CFDS报告有故障信息

D. 数据不会丢失

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如果内侧油箱满油位传感器变湿，那么（）___

A. 中央燃油泵停止工作

B. 内侧油箱燃油泵停止工作

C. FRV关

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如果右内侧油箱中两个燃油泵低压，会出现什么警告（）___

A. CAUTION灯亮

B. FAULT灯亮

C. 谐音钟声

D. 以上都对

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如果中央油箱出现过压，那它怎样释放压力（）___

A. 释放到机外

B. 释放到通气管

C. 释放到左侧油箱

D. 释放到右侧油箱

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如果中央油箱中两个燃油泵低压，不会出现什么警告（）___

A. 谐音钟声

B. FAULT灯亮

C. CAUTION灯亮

D. WARNING灯亮

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如果左内侧油箱中一个燃油泵低压，会出现什么警告（）___

A. CAUTION灯亮

B. WARNING灯亮

C. 谐音钟声

D. FAULT灯亮

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通气浮子valve的功用是（）___

A. 防止燃油进入通气管

B. 保持油箱压力

C. 排放通气管的燃油

D. 停止加油

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维护人员怎样得知通气油箱发生过释压（）___

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B. 白十字看不见

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下面哪个部件受满油位传感器的控制（）___

A. 左油箱燃油泵

B. 中央油箱燃油泵

C. 右油箱燃油泵

D. 加油valve

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下面哪个油箱过压时，不会通过过压保护器朝机外释放（）___

A. 中央油箱

B. 内侧油箱

C. 通气油箱

D. B+C

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下面哪个油箱过压时，会通过过压保护器朝机外释放（）___

A. 通气油箱

B. 内侧油箱

C. 中央油箱

D. A+B

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下面哪种情况不会引起FRV关闭（）___

A. 内侧油箱温度高

B. 外侧油箱温度高

C. 中央油箱温度高

D. IDG关断传感器变湿

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压力加油控制面板的位置在（）___

A. 左大翼前缘

B. 右大翼前缘

C. 左机腹整流罩

D. 右机腹整流罩

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油箱出现渗漏时，应以多少时间标准来做检查（）___

A. 5分钟

B. 10分钟

C. 15分钟

D. 20分钟

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在发动机起动的前两分钟所使用的燃油来自于哪里（）___

A. 内侧油箱

B. 中央油箱

C. 外侧油箱

D. A+B

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在加油时，如果高油位传感器故障，怎样知道油箱燃油已加满（）___

A. 加油自动停

B. 有警告声音

C. 红灯亮

D. 有燃油从通气油箱流出

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【单选题】

在空中，如果外侧油箱燃油被使用，那么转换valve什么时候关闭（）___

A. 飞机着陆时

B. 有一台发动机关车时

C. 双发关车时

D. 给油箱加油时

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在哪个油箱中没有燃油泵（）___

A. 内侧油箱

B. 外侧油箱

C. 中央油箱

D. 以上都不对

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【单选题】

在正常情况下，飞机燃油使用的顺序是（）___

A. 中央油箱→内侧油箱→外侧油箱

B. 中央油箱→外侧油箱→内侧油箱

C. 外侧油箱→内侧油箱→中央油箱

D. 内侧油箱→外侧油箱→中央油箱

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【单选题】

在自动供油的方式下，如果中央油箱的燃油已耗尽，那么中央油箱的燃油泵（）___

A. 自动停止

B. 人工关

C. 继续工作

D. 过热停止

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【单选题】

中央油箱的通气是来自哪边的通气油箱（）___

A. 左内侧油箱

B. 左通气油箱

C. 右内侧油箱

D. 左，右通气油箱

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【单选题】

主燃油泵何时出现低压指示（）___

A. 泵出口压力低

B. 泵进口压力低

C. 燃油泵电门在“ON”位

D. A+C

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【单选题】

___

A. 供油压力下降时

B. 油泵未通电时

C. 无故障时按钮设在OFF位

D. 机翼油箱油量少于750KG

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【单选题】

___

A. 机翼油箱中各有两个电动泵

B. 没有电动泵，因为油箱是空气增压

C. 机翼油箱中各有一个电动泵

D. 所有油箱中总共有两个电动泵

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