ATPL 题库 飞行原理

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1、飞行原理(1)Howcanthestabilityoftheatmospherebedetermined?·A．Ambienttemperaturelapserate.·B．Atmosphericpressureatvariouslevels.·C．Surfacetemperature/dewpointspread.正确答案：A(2)____preventsairflowingdirectlyfromthehighpressureareatolowpressureareawhenairmoves

2、inaleveldirection.·A．Frictionforce.·B．Inertialcentrifugalforce.·C．Coriolisdeflectingforce.正确答案：C(3)Onepurposeofhigh-liftdevicesisto·A．increasetheloadfactor.·B．delaystall.·C．increaseairspeed.正确答案：B(4)Theprimarypurposeofhigh-liftdevicesistoincreasethe·

3、A．L/Dmax.·B．Liftatlowspeeds.·C．Dragandreduceairspeed.正确答案：B(5)Airflowseparationoverthewingcanbedelayedbyusingvortexgenerators·A．directinghighpressureairoverthetopofthewingorflapthroughslotsandmakingthewingsurfacesmooth.·B．directingasuctionoverthetopo

4、fthewingorflapthroughslotsandmakingthewingsurfacesmooth.·C．makingthewingsurfaceroughand/ordirectinghighpressureairoverthetopofthewingorflapthroughslots.正确答案：C(6)Describedynamiclongitudinalstability.·A．Motionaboutthelongitudinal.·B．Motionaboutthelater

5、alaxis.·C．Motionabouttheverticalaxis.正确答案：B(7)Identifythetypestabilityiftheaircraftattituderemainsinnewpositionafterthecontrolshavebeenneutralized.·A．Negativelongitudinalstaticstability·B．Neutrallongitudinaldynamicstability·C．Neutrallongitudinalstati

6、cstability正确答案：C(8)Identifythetypestabilityiftheaircraftattitudetendstomovefartherfromitsoriginalpositionafterthecontrolshavebeenneutralized.·A．Negativestaticstability·B．Positivestaticstability·C．Negativedynamicstability正确答案：A(9)Identifythetypestabil

7、ityiftheaircraftattitudetendstoreturntoitsoriginalafterthecontrolshavebeenneutralized.·A．Positivedynamicstability.·B．Positivestaticstability.·C．Neutraldynamicstability.正确答案：B(10)Whatisacharacteristicoflongitudinalinstability?·A．Pitchoscillationsbecom

8、ingprogressivelygreater.·B．Bankoscillationsbecomingprogressivelygreater.·C．Aircraftconstantlytriestopitchdown.正确答案：A(11)Iftheairplaneattituderemainsinanewpositionaftertheelevatorcontrolispressedforwardandreleased,theairplanedisplays·A．neutrallongitud