在某种条件之下,当有理由认为,霜、冰、雪会附着在飞机上时,任何人不得签派飞机或者使其起飞,但该合格证持有人在其运行规范中具有经批准的地面除冰防冰大纲并且其签派、起飞都符合该大纲要求的除外。

TCAS系统不工作，可否进入RVSM空域飞行：

THE DISPATCHER DELEGATES ALL OF HIS RESPONSIBLE FLIGHTS EXCEPT FOR THE ONE THAT HAS JUST DECLARED AN EMERGENCY. THIS IS BEST DESCRIBED BY WHICH OF THE FOLLOWING EMT SKILLS?

THE DISPATCHER NOTICES ON A SCAN OF THE WEATHER METAR UPDATE THAT THE WINDS WILL INCREASE THE FUEL BURN RATE MORE THAN PLANNED AND BEGINS TO MONITOR THE SITUATION MORE CLOSELY. WHICH SKILL BEST DESCRIBES THIS SITUATION?

THE DISPATCHER WOULD LIKE TO RELEASE THE AIRCRAFT WITH LESS FUEL, BECAUSE OF NO KNOWN DELAYS AT DESTINATION. THE CAPTAIN DEMANDS 2,000 EXTRA POUNDS FOR POSSIBLE HOLDING PRIOR TO APPROACH AND LANDING. THE DISPATCHER ADDS THE FUEL. WHICH BEST DESCRIBES THIS SITUATION?:

THE DISPATCHER, PREPARES FLIGHT PLANS WELL AHEAD OF TIME, WHILE PATIENTLY AWAITING CALLS FROM MAINTENANCE CONCERNING A MEL ITEM, ATC ABOUT TRAFFIC FLOW MANAGEMENT, AND THE WEATHER STATION ON THUNDERSTORMS, THAT MAY IMPACT ONE OR MORE OF HIS FLIGHTS, AND CONTINUES TO CARRY ON NON-OPERATIONAL DISCUSSIONS WITH ANOTHER DISPATCHER. WHAT BEST DESCRIBES THIS SCENARIO?

WHAT IS L MEANING IN THE SHEL MODEL?

XX年12月1日，某飞机执行北京=青岛=成都往返航班，因北京流量控制导致北京-青岛航班延误5小时，后续航班均因为飞机晚到延误，请问青岛-北京航班延误定性为？

按121部实施仪表运行的任何飞机按仪表飞行规则运行时，在距预定航道中心线两侧各25公里(13.5海里)水平距离范围内，在平原地区不得在距最高障碍物（）米的高度以下，在丘陵和山区不得在距最高障碍物（）米的高度以下飞行。

保持时间是指除冰/防冰液可以在飞机保护表面防止形成霜、冰和积雪的预计时间。

备降机场的最低天气标准：对于至少一套II类精密进近程序的机场,云高不得低于( )米,能见度或跑道视程不得低于( )米。