How is management traffic isolated on a Cisco ASR 1002？____答案

【单选题】

How is management traffic isolated on a Cisco ASR 1002？___

A. Traffic isolation is done on the vlan level

B. There is no management traffic isolation on a Cisco ASR 1002

C. Traffic is isolated based upon how you configure routing on the device

D. The management interface is configured in a special vRF that provides traffic isolation from the default routing table

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B. 电磁线圈断电，由弹簧力保持valve在关位

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CFM56-5B发动机试车，在慢车功率时可否打开风扇整流罩（）___

A. 不能，并且风扇整流罩下部锁扣必须锁死

B. 可以，但只能撑开一面的风扇整流罩

C. 可以，但必须使用两根撑杆支撑

D. 不能，但风扇整流罩下部锁扣可以不锁

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CFM56-5B发动机运转时，关于连续点火选择的说法正确的是（）___

A. 人工转动点火选择器时，ECU不参与

B. 只有FADEC自动选择连续点火时，ECU才参与

C. 人工转动点火选择器和FADEC自动选择连续点火时，ECU都参与

D. 以上都不正确

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CFM56-5B反推操作的条件是（）___

A. 油门杆位置

B. 油门杆位置+飞机在地面

C. 油门杆位置+飞机在地面+反推指示为绿色

D. 油门杆位置+飞机在地面+N2（发动机运转）

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CFM56-5B反推门正常怎么打开（）___

A. 人工打开

B. 液压打开

C. 电动打开

D. 以上都不正确

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CFM56-5B反推系统液压关断valve的失效安全位是（）___

A. 打开

B. 关闭

C. 取决于最后位置

D. 以上都不正确

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CFM56-5B反推系统液压控制组件上反推解除手柄抑制销位于（）___

A. 液压控制组件上

B. 反推门上

C. 附件齿轮箱上

D. “C”涵道

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CFM56-5B反推系统液压油来自（）___

A. 黄系统

B. 绿系统

C. 蓝系统

D. 黄系统和绿系统

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CFM56-5B风扇转动一圈，高压涡轮转动几圈（）___

A. 1圈

B. 3.6圈

C. 2圈

D. 没有固定的转速关系

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CFM56-5B滑油系统的油气分离器安装在（）___

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B. 附件齿轮箱上

C. 滑油箱上

D. 前收油池

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CFM56-5B滑油系统跳出指示器位于（）___

A. 润滑组件上

B. 主磁堵上

C. 附件齿轮箱上

D. 以上都不正确

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CFM56-5B进口整流罩的防冰方式是（）___

A. 电加温

B. 引气加温

C. 喷防冰液

D. 以上都不正确

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CFM56-5B燃油泵组件里的冲洗油滤作用是（）___

A. 过滤到燃烧室去的燃油

B. 过滤到HMU去的伺服燃油

C. A和B

D. 以上都不正确

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CFM56-5B燃油系统中的燃油回油valve（FRV）的位置电门输送什么信息到ECU（）___

A. V1和V2电磁线圈位置

B. FRV关断valve位置

C. 燃油回油过压信号

D. 以上都不正确

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【单选题】

CFM56-5B燃油系统中回油valve（FRV）的作用是（）___

A. 发动机停车时释压燃油系统

B. 提供更佳的燃油过滤

C. 保持IDG滑油，发动机滑油和燃油温度在限定范围之内

D. 减少燃油的消耗量

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【单选题】

CFM56-5B是由FADEC控制，其ECU作用（）___

A. 对发动机推力进行控制

B. 对发动机空气系统进行控制

C. 对发动机的反推进行控制

D. A+B+C

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