液压系统1和2液压油使用位于后设备舱的单个空气/液压热交换器冷却。以下适用于所描述的系统的是：Hydraulic systems 1and 2 hydraulic fluids are cooled using a single air/hydraulic fluid heat exchanger which is located in the aft equipment bay. The following applies to the described system.

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若飞机在飞行中遭遇到微下击暴流，飞机的飞行性能常常是＿＿

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选出操作发动机反推所需的条件：Select the conditions that are required to operate the engine thrust reverser mechanism:

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飞机试题CRJ900题库练习

在TCAS RA改出过程中，PM 须不断地报告什么参数？ In the process of recovery according to the TCAS RA, what parameters must the PM constantly report?

A、高度差 altitude difference

B、速度 speed

C、飞行姿态变化 flight attitude changes

D、 VS

答案：ABCD

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II 类仪表进近时，飞行员应该监控自动驾驶仪使飞机保存在哪种范围以内？

A. "1/3 点的航道偏移；1/3 点的下滑道偏移

B. 1/4 点的航道偏移；1/4 点的下滑道偏移

C. 1/2 点的航道偏移；1/2 点的下滑道偏移"

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A. 200米

B. 300米

C. 600米

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在某一次飞行中发现，在离地 1500 米高度上是西南风，然而地面风是南风，这一风向不同的主要原因是因为

A. 当地地形影响气压

B. 地面有较强的地转偏向力

C. 风和地面之间的磨擦

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在地面启动过程中点火系统什么时候中断？When is the ignition system de-energized during a ground start?

A. 根据FADEC选择A和B点火系统 upon FADEC selection of both A and B ignitions

B. 当N2 转速达到45% when the N2 rpm reaches 45%

C. N2达到50% At 50% N2

D. 当迎角达到失速前的临界值 When angle-of-attack reaches a threshold in advance of a stall

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谁对机组成员遵守飞行基本规则负责：

A. 航空单位负责人

B. 机长

C. 民航局及其地区管理局

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绿色EICAS信息是（）信息。Green EICAS messages are messages.

A. 咨询Advisory

B. 警告Warning

C. 状态Status

D. 警戒Caution

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上座前检查，关于撤离出口检查说法错误的是（）
About checks prior to taking seat, which one is incorrect for checking the escape hatch?

A. 检查撤离出口关闭并锁定 Check the escape hatch is closed and locked

B. 应确保两个绿色目视标志正确校准 Ensure two green witness marks are correctly aligned

C. 应确保1个绿色目视标志正确校准 Ensure one green witness mark is correctly aligned

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A. 尽管系统1和2共享同一套热交换器，但两套系统之间没有液压油混合。Although systems 1 and 2 share the heat exchanger there is no mixing of hydraulic fluid of the two systems.

B. 由于只有一个热交换器，两个系统都必须被增压以防止两个系统之间的液压油混合。Since there is only one heat exchanger both systems must be pressurized to prevent mixing of hydraulic fluid between the two systems.

C. 在地面上必须避免使用液压系统1和2，因为液压滑油冷却不充分，而与外部空气温度无关。On ground use of hydraulic system 1 and 2 must be avoided because of insufficient cooling of hydraulic oil, independent of the outside air temperature.

D. 在启动期间的极低温度（10℃和更低）下，热交换器冷却空气旁通热交换器。At very low temperatures (10C and lower) during start-up the heat exchanger cooling air is by- passed around the heat exchanger.

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若飞机在飞行中遭遇到微下击暴流，飞机的飞行性能常常是＿＿

A. 急剧变坏

B. 先变好，后变坏

C. 先变坏，后变好

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选出操作发动机反推所需的条件：Select the conditions that are required to operate the engine thrust reverser mechanism:

A. 相关液压系统增压associated hydraulic system pressurized

B. 相关反推电门选到预位位置associated thrust reverser switch selected to ARMED.

C. 引气总管增压 bleed air manifold pressurized

D. 相关发动机运转 associated engine operating

E. 飞机在空中或在地面 aircraft in flight or on the ground