在地面，当探测到 APU 火警时，APU 自动关车。( )秒后，APU 灭火瓶自动向APU 舱释放海伦灭火剂。On the ground, when a APU fire is detected, the APU automatically shuts off. ( ) seconds later, Halon fire extinguishing agent will be automatically released to APU compartment.

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飞机试题CRJ900题库练习

大气是一种混合物，它由＿＿组成

A、空气和水汽凝结物；

B、空气和固体微粒；

C、空气、水汽及液体或固体杂质

答案：C

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初始检查中，源选择面板应确保4个旋钮都在（）位。During originating check, the 4 knobs on source selector panel shall be in ( ) position.

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在观测中高云时常采用累积云量，累积云量等

A. 中云和高云云量之和

B. 可见云量与下层云量之和

C. 各种云量的累计

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SOP的主要目的是The main purpose of SOP is

A. 为飞行机组提供在所有预计的航线飞行过程中，能安全有效地操作CRJ900飞机的必需程序；To provide the flight crew with the necessary procedures for safe and effective operation of CRJ900 aircraft during the all anticipated line flights

B. 用于CRJ900飞机初始训练的使用基准To be used as an operation reference for initial training of CRJ900 aircraft；

C. 在定期复训和熟练检查中用作复习指南；To be used as the review guide in recurrent training and proficiency inspection

D. 建立标准化程序，规范飞行活动。To establish standardized procedures to standardize flight activities.

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层积云和高积云的简写符号分别是

A. Sc、Ac

B. Sc、Ac

C. St、Ac

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引气泄露探测系统监控：The bleed air leak detection system monitors the ......

A. 与引气泄露相关的气源和防冰管道高温。The pneumatic and anti-ice ducting for high temperatures associated with bleed air leakage.

B. 与引气泄露相关的气源管道高温。Only the pneumatic ducting for high temperatures associated with bleed air leakage.