交输引气活门的功能是：The function of the cross bleed valve is to
A. 调节防冰管道压力 Regulate anti-ice duct pressure
B. 万一出现引气泄露时隔离防冰系统区域 Isolate areas of the anti-ice system in the event of a bleed air leak
C. 允许一台发动机向两侧机翼提供防冰Allow a single engine to anti-ice both wings
D. 增加空气供反推操作 augment air for thrust reversers operation
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判断正误：当 APU 转速超过 50% 时，进气门完全打开。True or false: At APU rpm greater than 50%, the intake door is fully open.
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“所需目视参考”是飞机安全落地的必要条件，规章中规定 除II类、III类进近之外，驾驶员应至少能清楚的看到和辨认计划着陆 跑道的下列目视参考之一 Required visual reference" is a necessary condition for the safe landing of aircraft. The regulations stipulate that except for CATII and CATIII approaches, the pilot shall be able to clearly see and identify at least one of the following visual references of the planned landing runway
A. 进近灯光系统，如果驾驶员仅使用进近灯光作为参考，应当能 同时清楚地看到和辨认“红色终端横排灯”或者“红色侧排灯” for the approach light system, if the pilot only uses the approach light as a reference, he/she should be able to clearly see and identify the "red end cross row lights (only exists in some foreign airports)" or "red side row lights (side short row lights)", otherwise he/she shall not descend below 30m (100 feet) above the elevation of the TDZ;
B. 跑道入口;
跑道入口标志;
跑道入口灯;
跑道端识别灯;
目视进近下滑道指示灯Runway threshold;
Runway threshold marks;Runway threshold lights;Runway end identification lights; VASI lights;
C. 接地区或者接地区标志;
接地区灯;
跑道或者跑道标志;
跑道灯TDZ or TDZ marks;(8) TDZ lights;(9) Runway or runway marks;runway lights
D. 以上全部 all of the above
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航路上影响飞行安全的自然障碍物体，应当
A. "在航图上标明；
B. 设置飞行障碍灯和标志；
C. 限期清除"
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判断正误True or False: 在五边进近航段，若失去完成进近所需导航精度，则PFD上将显示琥珀色的NO APPR信息。During the final approach segment, if the required navigation accuracy to complete the approach is lost, an amber NO APPR message is displayed on the PFD.
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判断正误true or false: 当选择速度方式时，第一次选择接通CLB或DES方式，第二次选择接通IAS方式。When push the speed mode, first selection engages CLB or DES, second selection engages IAS mode.
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接受转场飞行航空器降落的机场，必须在航空器到达机场＿＿以前，做好保障降落的各项准备工作。
A. 30 分钟
B. 45 分钟
C. 1 小时
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离地仰角大橙色事件为主轮离地时刻，俯仰角大于等于（ ）
A. 8°
B. 9°
C. 10°
D. 11.2°
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襟翼使用最大的高度不得大于标准气压（ ）英尺The maximum altitude for the flap use shall not be more
than ( )feet on standard.
A. 10,000
B. 5000
C. 20,000
D. 15,000
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当航空器受到非法干扰时应答机应当设置为
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