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- Flow restrictions often begin in the middle of the route, as controllers will ______ aircraft landing in the same destination so that when the aircraft are close to their destination they are sequenced. A: control B: position C: instruct D: monitor
- The aircraft must be placed in a flow _________ the aircraft’s route of flight.
- The aircraft must be adjustedin a flow consistent with the aircraft's route of flight.
- _________is a procedure used by aircraft in certain emergency situations before a return to the airport shortly after takeoff or before the landing short of its intended destination to reduce the aircraft's weight. A: fuel jettison B: refuelling C: circling D: diversion
- The aircraft must be placed in a flow _________ the aircraft’s route of flight. A: parallel to B: opposite to C: consistent with D: inconsistent with
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Air traffic controllers have the same responsibilities to aircraft operating under the different sets of rules.
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holding landing delay A: Due weather B: Due landing delay at destination C: Due separation D: Due flow control
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T or F 703 The aircraft flew to the alternate airport due to adverse weather at the destination airport. [音频]
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A belly landing or gear-up landing is when an aircraft lands without its landing gear fully ------------. A: extend B: extended C: retract D: retracted
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请将下列段落翻译成汉语：Air traffic control (ATC) is a service provided by ground-based controllers who direct aircraft on the ground and in the air. The primary purpose of ATC systems worldwide is to separate aircraft to prevent collisions, to organize and expedite the flow of traffic, and to provide information and other support for pilots when able.