A、 雾凇
B、 明冰;
C、 毛冰
答案:A
A、 雾凇
B、 明冰;
C、 毛冰
答案:A
A. 仅左油箱能翼上加油然后使用回油引射泵平衡燃油。Only left tank can be overwing refueled then fuel may be balanced using Scavenge Ejector
B. 仅右油箱能翼上加油然后使用回油引射泵平衡燃油。Only right tank can be overwing refueled then fuel may be balanced using Scavenge Ejector
C. 仅左和右机翼油箱可重力加油。Only left and right wing tanks can be gravity refueled.
D. CRJ900不可以重力加油。In CRJ 900 gravity refuel is not possible.
A. 1.0
B. 2.0
C. 3.0
D. 4.0
A. 城市区域
B. 野外区域
C. 二者均可能
D. 二者均不可能
A. 200
B. 300
C. 400
D. 600
A. 旅客舱门和勤务门已关闭并上锁,机外排气活门未关闭。Overboard exhaust valve not closed with passenger and service doors closed and locked.
B. 由于堵塞或断开,或由于风扇失效,显示器冷却管道内气流量低。Low airflow in display cooling duct due to blockage or disconnection, or a fan failed.
C. 任一电子舱风扇速度<60%或失效。Any avionics fan speed <60% or failed.
D. 任一显示风扇速度<50%或失效。Any display fan speed <50% or failed.
A. 驱动燃油泵 driven fuel pumps
B. 可变几何作动筒 variable geometry actuators
C. 反推装置 thrust reversers
D. 压缩机导流叶片 compressor stator vanes
A. 机长
B. 公司领导
C. 飞行部领导
A. 燃油转输 fuel transfer
B. 使用主引射泵的动力流 motive flow using the main ejectors
C. 燃油交输 fuel crossflow
D. 使用回油引射泵的动力流 motive flow using the scavenge ejectors