【单选题】
“MAYDAY” is the international RTF______signal.___
A. emergency
B. distress
C. urgency
D. dangerous
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答案
B
解析
暂无解析
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【单选题】
According to ICAO definition, a condition concerning the safety of an aircraft or other vehicle or of some person on board or within sight but which does not require immediate assistance is _______ .___
A. urgency
B. dangerous
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【单选题】
______is the accepted standard for worldwide time signal broadcast used for aviation.___
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【单选题】
_____means the level is measured in 1013.2 pha___
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B. Height
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【单选题】
An aircraft known or believed to be in a state of emergency should be given______over other aircraft.___
A. way
B. flight plan
C. instruction
D. priority
【单选题】
管制话筒正确使用方法是:___
A. PTT发射键还没有完全按下时就开始发指令
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C. 按PTT发射键与发话同时进行,松开PTT发射键与发话同时进行
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【单选题】
Traffic information should include_________
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【单选题】
The altimeter setting used in en-route flight should be______hpa___
A. 1019
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【单选题】
Larger separations than the specified minima should be applied whenever in.___
A. turbulence
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【单选题】
_______is air traffic control service for controlled flights in control areas___
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【单选题】
_______ is a service provided to notify appropriate organizations regarding aircraft in need of search and rescue aid, and assist such organizations as required.___
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【单选题】
Visibility is the ability as determined by atmospheric conditions and expressed in unit______.___
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【单选题】
SIGMET is a weather advisory issued concerning weather______to the safety of all aircraft.___
A. significant
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【单选题】
Flight level is a______of constant atmospheric pressure which is related to a specific pressure datum 1013.2hpa.___
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【单选题】
Air traffic means all aircraft in flight or operating on the______of an aerodrome.___
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【单选题】
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【单选题】
Air speed is the speed of an aircraft relative to its surrounding______.___
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【单选题】
“Aircraft” means any machine that can derive support in the______from there actions of the air other than there actions of the air against the earth's surface.___
A. atmosphere
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【单选题】
If the radar receiver detects the retarding time tR=500mS between transmitting pulse and receiving pulse,now the target is______km from the radar station.___
A. 150
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【单选题】
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【单选题】
The recommendation is advisory in nature.The decision as to whether the flight can be conducted safely rests solely with the______.___
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【单选题】
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【单选题】
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【单选题】
A magnetic compass is the______air navigation instrument.___
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In the AFTN,the flight plan filing time shall consist of a______data-time group.___
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【单选题】
“______”is a notice containing information concerning the establishment,condition or change in any aeronautical facility service procedure or hazard,the timely knowledge of which is essential to personnel concerned with flight operations.___
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【单选题】
“______”means visibility,cloud and present weather better than prescribed values or conditions.___
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【单选题】
“______”is the height above the ground or water of the base of the lowest layer of cloud below 6000m covering more than half sky.___
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【单选题】
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【单选题】
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【单选题】
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