在签派或飞行放行资料中列出的每一个延程运行指定备降机场的国际民航组织（ICAO）机场救援和消防服务（RFFS）等级必须符合：超过180分钟的延程运行，必须在计划航路的（）考虑合适的RFFS 7级机场的可用性。

MEL手册的哪种程序，表示飞机带该缺陷/故障放行时，为合理配置飞机而必须采取的措施，由维护单位和维护人员执行？

RVSM空域中，可以申请绕飞危险天气吗？

RVSM运行起飞前，驾驶舱内当地机场已知标高和高度表显示之间的差值不得超过（）。

RVSM运行需要的最低设备不包括（ ）

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?