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空调组件热交换器如何冷却?How are the pack heat exchangers cooled?

A、 通过来自空气循环器的冲压空气冷却 ram air from the air cycle machine

B、 专门的冷却风扇dedicated cooling fan

C、 通过来自冲压空气进气口的冲压空气ram air from the ram air scoop

D、 从客舱来的循环空气recirculated air from the cabin

答案:C

飞机试题CRJ900题库练习
执行标准目视进近,完成着陆前检查单,自动驾驶不得低于()尺脱开。To implement a standard visual approach, complete the before-landing checklist, and autopilot must be disengaged not less than ( ) feet.
https://www.shititong.cn/cha-kan/shiti/00007381-7ae8-525a-c073-9874ad40f400.html
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潮湿而不稳定的空气被迫沿山坡上升,所形成的云将是
https://www.shititong.cn/cha-kan/shiti/00007381-7aea-1526-c073-9874ad40f400.html
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判断正误True or False:
中央油箱可进行重力加油。Center tank can be gravity refueled.
https://www.shititong.cn/cha-kan/shiti/00007381-7af3-5b9d-c073-9874ad40f400.html
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自动增压方式的地面方式:根据飞机机轮承重:Ground mode of the Automatic Pressurization Modes: Based on airplane weight-on-wheels:
https://www.shititong.cn/cha-kan/shiti/00007381-7af2-7d57-c073-9874ad40f400.html
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目视飞行必须在__米以下进行
https://www.shititong.cn/cha-kan/shiti/00007381-7aed-4686-c073-9874ad40f400.html
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地转偏向力的方向,在北半球是
https://www.shititong.cn/cha-kan/shiti/00007381-7aea-348f-c073-9874ad40f400.html
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调机、本场训练或试飞,( )应完成客舱安全检查。For ferry, local field training or test flight, ( ) shall complete the cabin safety check.
https://www.shititong.cn/cha-kan/shiti/00007381-7ae7-8814-c073-9874ad40f400.html
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如果指示N2 rpm超过____%,则不能使用起动机。The starter must not be used if indicated N2 rpm exceeds ___%.
https://www.shititong.cn/cha-kan/shiti/00007381-7af0-eb23-c073-9874ad40f400.html
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除经空中交通管制许可外,在距机场中心4海里范围内,离地高度2500英尺以下不得以大于( )海里/小时的指示空速运行航空器。
An aircraft is not allowed to operate at an indicated airspeed greater than ( ) NM/hour at an altitude of not exceeding 2,500 feet above the ground at a distance of 4 nautical miles from the center of the airport except with the approval of air traffic control.
https://www.shititong.cn/cha-kan/shiti/00007381-7ae8-2617-c073-9874ad40f400.html
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在高空(7000 米以上)飞行经常遇到的乱流是
https://www.shititong.cn/cha-kan/shiti/00007381-7aeb-9c92-c073-9874ad40f400.html
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飞机试题CRJ900题库练习
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飞机试题CRJ900题库练习

空调组件热交换器如何冷却?How are the pack heat exchangers cooled?

A、 通过来自空气循环器的冲压空气冷却 ram air from the air cycle machine

B、 专门的冷却风扇dedicated cooling fan

C、 通过来自冲压空气进气口的冲压空气ram air from the ram air scoop

D、 从客舱来的循环空气recirculated air from the cabin

答案:C

飞机试题CRJ900题库练习
相关题目
执行标准目视进近,完成着陆前检查单,自动驾驶不得低于()尺脱开。To implement a standard visual approach, complete the before-landing checklist, and autopilot must be disengaged not less than ( ) feet.

A. 80

B. 110

C. 400

https://www.shititong.cn/cha-kan/shiti/00007381-7ae8-525a-c073-9874ad40f400.html
点击查看答案
潮湿而不稳定的空气被迫沿山坡上升,所形成的云将是

A. 卷状云,厚度不大,无乱流;

B. 积状云,垂直发展旺盛,有大雨;

C. 层状云,有轻度乱流或无乱流

https://www.shititong.cn/cha-kan/shiti/00007381-7aea-1526-c073-9874ad40f400.html
点击查看答案
判断正误True or False:
中央油箱可进行重力加油。Center tank can be gravity refueled.
https://www.shititong.cn/cha-kan/shiti/00007381-7af3-5b9d-c073-9874ad40f400.html
点击查看答案
自动增压方式的地面方式:根据飞机机轮承重:Ground mode of the Automatic Pressurization Modes: Based on airplane weight-on-wheels:

A. 外流活门关闭、地面活门打开 the outflow valve closed、ground valve open

B. 外流活门打开、地面活门打开 the outflow valve open、ground valve open

C. 外流活门打开、地面活门关闭 the outflow valve open、ground valve closed

D. 外流活门关闭、地面活门关闭 the outflow valve closed、ground valve closed

https://www.shititong.cn/cha-kan/shiti/00007381-7af2-7d57-c073-9874ad40f400.html
点击查看答案
目视飞行必须在__米以下进行

A. 3000

B. 6000

C. 7200

https://www.shititong.cn/cha-kan/shiti/00007381-7aed-4686-c073-9874ad40f400.html
点击查看答案
地转偏向力的方向,在北半球是

A. 垂直指向运动的右方

B. 垂直指向运动的左方;

C. 在自由大气中与等压线的方向一致

https://www.shititong.cn/cha-kan/shiti/00007381-7aea-348f-c073-9874ad40f400.html
点击查看答案
调机、本场训练或试飞,( )应完成客舱安全检查。For ferry, local field training or test flight, ( ) shall complete the cabin safety check.
https://www.shititong.cn/cha-kan/shiti/00007381-7ae7-8814-c073-9874ad40f400.html
点击查看答案
如果指示N2 rpm超过____%,则不能使用起动机。The starter must not be used if indicated N2 rpm exceeds ___%.

A. 0.35

B. 0.4

C. 45%

D. 0.5

https://www.shititong.cn/cha-kan/shiti/00007381-7af0-eb23-c073-9874ad40f400.html
点击查看答案
除经空中交通管制许可外,在距机场中心4海里范围内,离地高度2500英尺以下不得以大于( )海里/小时的指示空速运行航空器。
An aircraft is not allowed to operate at an indicated airspeed greater than ( ) NM/hour at an altitude of not exceeding 2,500 feet above the ground at a distance of 4 nautical miles from the center of the airport except with the approval of air traffic control.

A. 200

B. 210

C. 220

D. 230

https://www.shititong.cn/cha-kan/shiti/00007381-7ae8-2617-c073-9874ad40f400.html
点击查看答案
在高空(7000 米以上)飞行经常遇到的乱流是

A. 动力乱流

B. 热力乱流

C. 晴空乱流

https://www.shititong.cn/cha-kan/shiti/00007381-7aeb-9c92-c073-9874ad40f400.html
点击查看答案
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