【单选题】
高碳钢焊接时对气孔的敏感性___
A. 大
B. 小
C. 一般
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答案
A
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关于气力引射器下列说法正确的是___
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在工作中扭伤手指,应立即停止工作。首先是冷敷,最好用冰。但一般没有准备,可用水代替。将手指泡在水中冷敷___左右,然后用冷湿布包敷
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【单选题】
关于实心焊丝和药芯焊丝,以下说法错误的是___。
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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.___
A. alerting service
B. information service
C. rescue service
D. assistance service
【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.___
A. standard
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【单选题】
Air traffic means all aircraft in flight or operating on the______of an aerodrome.___
A. highway
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【单选题】
The true airspeed is the airspeed of an aircraft relative to______air.___
A. turbulence
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【单选题】
Air speed is the speed of an aircraft relative to its surrounding______.___
A. traffic
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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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C. 100
D. 75
【单选题】
“Advise______”means“ Tell me what you plan to do”.___
A. wanting
B. intentions
C. ideas
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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______.___
A. controller
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【单选题】
“There are broken______along the entire route between niner and one one thousand feet at the present time.”___
A. radial
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【单选题】
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【单选题】
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【单选题】
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】
“______”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】
管制员在对空指挥过程中，应当主动地控制一句管制指令中所包含的管制指令的内容。一般情况下，管制员发布的一句管制指令中，包含的管制内容不应当超过___项
A. 1
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【单选题】
当观察到两个或多个雷达位置指示符相近，或观察到在同时作相似的移动以及遇到其它引起对目标怀疑的情况时，管制员应当___。
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【单选题】
“AIP”is“”___
A. Air Information Publication
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【单选题】
An air show may with the consent of the______be the reason for an aerodrome being closed to all traffic for a few hours.___
A. Control tower
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【单选题】
Who will be in charge for a flight?___
A. The first officer
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【单选题】
“APU”is______.___
A. a ground power facility
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【单选题】
The magnetic compass indicates the______in which an aircraft is flying with respect to the magnetic north pole.___
A. level
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【单选题】
VHF communication frequency is_________
A. 100MHZ～350MHZ
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【单选题】
The rmalth under storm is caused by_________
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【单选题】
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A. Aircraft identification
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【单选题】
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【单选题】
_______isageographicallocationinrelationtowhichthepositionofanaircraft,isreported___
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【单选题】
_______istheintersectionoflinesofreference,usuallyexpressedindegrees/minutes/tenthsofminutesoflatitudeandlongitude,usetodeterminepositionorlocation___
A. Coordinates
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【单选题】
_______isthespeedofanaircraftrelativetothesurfaceoftheearth.___
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【单选题】
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【单选题】
_______isanaltitudeorflightlevelmaintainedduringen-routelevelflight___
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【单选题】
_______isacontrolareaorportionthereofestablishedintheformofacorridor,thecenterlineofwhichisdefinedbyradionavigationalaids___
A. Flyingarea
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_______isanaerodromespecifiedintheflightplantowhichaflightmayproceedwhenitbecomesinadvisabletolandattheaerodromeofintendedlanding___
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