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Question 209-1 : A locator beacon differs from an ndb with respect to 1 operational use2 transmission power3 presentation in the cockpit4 frequency bandfrom the above stated differences the following numbers are correct ? [ Exam pilot ]
1 and 2
Question 209-2 : An aircraft is flying on a magnetic heading of 210° the magnetic variation at the vor is 5°w and at the aircraft 10°waccording to the hsi shown at the annex the aircraft is on radial err a 062 417 ?
025°.
Img com encom062 15113jpghalf scale needle deflection on vor tracking mode is 5°for training purpose please use one of the following websites navigation simulatoradf vor simulatorvor simulatorluizmonteiro learning vor015°. 205°. 195°.
Question 209-3 : An aircraft is flying on a magnetic heading of 210°the magnetic variation at the vor is 5°w and at the aircraft 10°waccording to the cdi shown at the annex the aircraft is on radial err a 062 418 ?
025°.
The radials of a vor always point away from the station com encom062 418jpgaircraft heading is not important selected courses crs is 200° the needle materializes the radial 200° and with the 'to' indication we are on course to the station we still are on radial 020 opposite to radial 200° we are left of selected course and in vordme mode half scale deflection of the cdi is 5° full deflectionis 10° for training purpose please use one of the following websites navigation simulatoradf vor simulatorvor simulatorluizmonteiro learning vor015°. 205°. 195°.
Question 209-4 : The reading of the rmi bearing is 300° at the tip of the needle the magnetic variation at the dr position is 24°w the magnetic variation at the ndb is 22°w and the deviation is 2° the compass heading is 020° the true bearing is ?
274°.
Compass heading = 020°deviation = 2° westerly deviation deviation west compass best magnetic heading = 018°variation = 24° ndb variation at aircraft position variation west magnetic best true heading = 354°we are looking for a bearing from the station and the rmi bearing is 300° at the tip of the needle at a heading of 020° and a bearing to the beacon of 300° relative bearing must be 280° 300° 020° reciprocal true bearing = heading + relative bearingreciprocal true bearing = 354° + 280° = 634°true bearing = 634° 360° = 274°094°. 272°. 294°.
Question 209-5 : Classify the marker from lower aural frequency to higher aural frequency 1 inner marker if available 2 middle marker3 outer marker ?
3 2 1.
Inner middle outer1 - 2 - 3 1 - 3 - 2 2 - 1 - 3
Question 209-6 : Range of vdf depends on 1 line of sight formula2 power of transmitters3 intervening high groundthe combination regrouping all the correct statements is ?
1 2 and 3.
1 and 3. 2. 1 and 2.
Question 209-7 : Locators are 1 high powered ndbs used for en route and airways navigation2 low powered ndbs used for airfield or runway approach 3 beacons with a usually range of 10 to 250 nm4 beacons with a usually range of 10 to 25 nmthe combination regrouping all the correct statements is ?
2 and 4.
1 and 3. 2 and 3. 1 and 4.
Question 209-8 : Allocated frequencies for 'ndb' are ?
190 khz to 1750 khz.
Ndbs non directional beacons used for aviation are standardised by icao annex 10 which specifies that ndbs be operated on a frequency between 190 khz and 1750 khz1.90 khz to 17.50 khz. 1900 khz to 17500 khz. 19 hz to 17500 hz.
Question 209-9 : On final on an 'ils' approach you are flying overhead the outer marker you can expect to be at ?
4 nm from the threshold.
1 nm from the threshold. 25 nm from the threshold. 10 nm from the threshold.
Question 209-10 : An aircraft has a magnetic heading of 290° and is on vor radial 280 which value has to be selected on the obs to get a to indication and the cdi course deviation indicator centred ?
100°.
The heading of the aircraft is irrevelant the radials of a vor always point away from the station and you are on radial 280° if you want to go to the station you must select the radial minus 180° or + 180° it's up to you notice if you want a from indication you just have to select 280°for training purpose please use one of the following websites navigation simulatoradf vor simulatorvor simulatorluizmonteiro learning vor110°. 280°. 290°.
Question 209-11 : The 'ils' outer marker modulation frequency is ?
400 hz.
3000 hz. 1500 hz. 1300 hz.
Question 209-12 : Which of the following list use the vhf band 1 locator2 localiser3 outer marker4 glide paththe combination that regroups all the corrects statements is ?
2 and 3.
Vor operating frequencies vhf localiser vhf marker beacon vhf dme operating frequencies uhfglide slopepath uhfgnssgps uhfl1 and l2 frequencies used by navstargps uhfils localiser and glide slope uhf and vhf bandsmicrowave landing system mls shfairborne weather radars shflocator lfmf2 and 4. 1, 2, 3 and 4. 1 and 3.
Question 209-13 : Range of vdf depends on 1 loudness of the voices of the pilot and the operator when transmitting2 power of airborne and ground transmitters3 power of pilot voice when transmitting4 aircraft altitude and ground transmitter elevationthe combination regrouping all the correct statements is ?
2 and 4.
2. 3 and 4. 1.
Question 209-14 : An aircraft on a heading of 180°m is on a bearing of 270°m from a vorthe bearing you should select on the omni bearing selector to centralise the vorils leftright deviation needle with a to indication is ?
090°.
com encom062 437jpgto centralise the vorils deviation needle you can set 090° or 270°if you choose 270° you will have a 'from' indicationfor training purpose please use one of the following websites navigation simulatoradf vor simulatorvor simulatorluizmonteiro learning vor270°. 360°. 180°.
Question 209-15 : The localiser transmitters operate in a frequency band between ?
108 mhz and 111975 mhz.
Ils localiser frequencies are found in the range of 10800 to 11195 mhz and the first digit after the decimal point is odd if the first digit after the decimal point is even it is a vor please note that this question stipulates between you will find localiser frequencies from 10810 to 11195 mhz329.15 mhz and 335 mhz. 108 mhz and 117.975 mhz. 111.975 mhz and 117.975 mhz.
Question 209-16 : The ils middle marker modulation frequency is ?
1300 hz.
800 hz. 400 hz. 3000 hz.
Question 209-17 : Inner marker beacons of an ils transmit at ?
75 mhz.
all marker beacons operate on 75 mhz carrier frequency modulation frequencies are outer marker 400 hz middle marker 1300 hzinner marker 3000 hzthe audio frequency modulation for identification is continuous modulation of the audio frequency and is keyed as follows outer marker 2 dashes per second continuouslymiddle marker a continuous series of alternate dots and dashesinner marker 6 dots per second continuously90 hz. 150 mhz. it depends on the modulating frequency.
Question 209-18 : All ils marker beacons transmit at ?
75 mhz.
Icao annex 10 aeronautical telecommunications volume 1 radio navigation aids 3172 radio frequency31721 the marker beacons shall operate at 75 mhz with a frequency tolerance of plus or minus 0005 per cent and shall utilize horizontal polarization90 mhz. 150 mhz. it depends on the modulating frequency.
Question 209-19 : Middle marker beacons of an ils transmit on carrier frequency at ?
75 mhz.
all marker beacons operate on 75 mhz carrier frequency modulation frequencies are outer marker 400 hz middle marker 1300 hzinner marker 3000 hzthe audio frequency modulation for identification is continuous modulation of the audio frequency and is keyed as follows outer marker 2 dashes per second continuouslymiddle marker a continuous series of alternate dots and dashesinner marker 6 dots per second continuously150 mhz. 90 mhz. 1300 hz.
Question 209-20 : An aircraft is on the 065 radial with a heading of 090°mthe course reference selector crs is set on 240which hsi shows the correct indications err a 062 447 ?
B.
Crs is set by the pilot it is 240 radialwe are on the 065 radial if we were on the opposite side of the vor opposite radial of 240 we will be on the 060° radial 240 180 in order to simplify remember that the indication on a hsi is directionnal so you can set a crs on 060° and we could see that we are on the right of the radial 060°if our heading is 090° it means that we are going away from the vor the vor is behind usonly b is the correct answerA. c. d.
Question 209-21 : Night effect in an adf may cause ?
Fluctuating indications of the needle on the rmi.
Navigation using an adf to track ndbs is subject to several common effects night effect radio waves reflected back by the ionosphere can cause signal strength fluctuations 30 to 60 nautical miles 54 to 108 km from the transmitter especially just before sunrise and just after sunset more common on frequencies above 350 khz terrain effect high terrain like mountains and cliffs can reflect radio waves giving erroneous readings magnetic deposits can also cause erroneous readings electrical effect or static interference electrical storms and sometimes also electrical interference from a ground based source or from a source within the aircraft can cause the adf needle to deflect towards the electrical source shoreline effect or coastal refraction low frequency radio waves will refract or bend near a shoreline especially if they are close to parallel to it bank effect when the aircraft is banked the needle reading will be offsetit doesn't provide information of failure or malfunctionA constant error in the indicated bearing. no bearing error because of the built-in compensator unit. noise in the received em-wave, which hardly will be noticed by the pilot looking at the rmi.
Question 209-22 : The audio frequency modulation of the outer marker shall be keyed as follows ?
2 dashes per second continuously.
677A continuous series of alternate dots and dashes. 6 dots per second continuously. 3 dashes, 3 dots and 3 dashes per second continuously.
Question 209-23 : Which statement is correct with respect to the different types of vor ?
A tvor has a limited range.
Tvor terminal vorthe range of 108 to 112 mhz is allocated for terminal vor terminal vors are accurate to 25 nm outward up to 12000 ft tvor is not a 'vot' which is a 'test vor' A dvor is less accurate than a cvor. a vot is located along an airway with the purpose to provide an in-flight check of the airborne equipment. a cvor is primarily used for instrument approaches.
Question 209-24 : The ils receiver of an aircraft on approach and flying on the right of the exact runway centreline will receive ?
More of the 150 hz localiser signal than the 90 hz localiser signal.
Img com encom062 12691jpgdistribution of the frequencies seen in the approach direction com encom062 15293jpgif the aircraft is exactly on the glidepath on the exact runway centreline it receives a balance between modulationsif the aircraft is right of the exact runway centreline glidepath it will receive more of the 150 hz localiser signal than the 90 hz localiser signalA modulated signal and will shift the localiser needle to the right according to the magnitude of the difference between the two amplitudes. the modulation from both lobes at equal amplitude. the left lobe modulation only.
Question 209-25 : Ils produces ?
A radiation pattern which is amplitude modulated by a 90hz and a 150hz signal.
Img com encom062 12691jpgA radiation pattern which is amplitude modulated by the vhf frequency of the ils. two lobes modulated in frequency by a 90hz and a 150hz signal. a 90 hz lobe and a 150 hz lobe which are amplitude modulated by the vhf frequency of the ils.
Question 209-26 : 10835 mhz can only be ?
An ils frequency.
Ils localiser frequencies are found in the range of 10800 to 11195 mhz and the first digit after the decimal point is odd if the first digit after the decimal point is even it is a vor A vor frequency. an atc frequency. a ndb frequency.
Question 209-27 : One of uses of the vdf service is providing aircraft with ?
Homing.
Altitude. heading. ground speed.
Question 209-28 : On an ils approach when flying overhead the outer marker the color of the flashing light will be ?
Blue.
Amber. green. white.
Question 209-29 : A vor is situated at the far end of a runway on which an aircraft is making an ils approachnav 1 is switched to the localiser frequency and nav 2 to the vor frequencyat the moment that the needle of number 1 indicator reaches the outer dot the deflection of the needle of number 2 indicator will be ?
Approximately a quarter of the scale.
2595keep in mind each of the dots represent approximately 05 degrees on the ils localiser cockpit display nav1 and 25 degrees on the vor localiser cockpit display nav2 Approximately halfway the scale. approximately three quarters of the scale. the outer dot.
Question 209-30 : Two aircraft are located on arbitrary different radials but at equal distances from a vor stationwhich statement is true ?
At a certain moment of time the phase of the reference signals is equal and the phase of variable signals is unequal for both aircraft.
Two questions in the easa database look similar this one two aircraft are located on arbitrary different radials but at equal distances from a vor station at a certain moment of time the phase of the reference signals is equal and the phase of variable signals is unequal for both aircraftand this one two aircraft are located on the same radial but at arbitrary different distances from a vor station at a certain moment of time both the phase of the reference signals and of the variable signals are equal for both aircraftAt a certain moment of time the phase of the reference signals is unequal and the phase of variable signals is equal for both aircraft. at a certain moment of time, both the phase of the reference signals and of the variable signals are equal for both aircraft. at a certain moment of time, both the phase of the reference signals and of the variable signals are unequal for both aircraft.
Question 209-31 : Two aircraft are located on the same radial but at arbitrary different distances from a vor station which statement is true ?
At a certain moment of time both the phase of the reference signals and of the variable signals are equal for both aircraft.
Two questions in the easa database look similar this one two aircraft are located on arbitrary different radials but at equal distances from a vor station at a certain moment of time the phase of the reference signals is equal and the phase of variable signals is unequal for both aircraftand this one two aircraft are located on the same radial but at arbitrary different distances from a vor station at a certain moment of time both the phase of the reference signals and of the variable signals are equal for both aircraftAt a certain moment of time, the phase of the reference signals is unequal and the phase of variable signals is equal for both aircraft. at a certain moment of time, both the phase of the reference signals and of the variable signals are unequal for both aircraft. at a certain moment of time, the phase of the reference signals is equal and the phase of variable signals is unequal for both aircraft.
Question 209-32 : Adf is the abbreviation for ?
Automatic direction finder.
One of the older types of radio navigation is the automatic direction finder adf or non directional beacon ndb the adf receiver a backup system for the vhf equipment can be used when line of sight transmission becomes unreliable or when there is no vor equipment on the ground or in the aircraftit is used as a means of identifying positions receiving low and medium frequency voice communications homing tracking and for navigation on instrument approach proceduresAutomatic detection finding. aircraft directional finder. aircraft direction finding.
Question 209-33 : On an ils approach when flying overhead the middle marker the color of the flashing light will be ?
Amber.
Blue. green. white.
Question 209-34 : On an ils approach when flying overhead the inner marker if available the color of the flashing light will be ?
White.
Question 209-35 : The ils marker with the lower aural frequency is the ?
Outer marker.
Question 209-36 : 'beam bends' in the ils approach path are ?
Slight curves that can be followed by large aircraft.
Ils beam bends may occur because of vehicle building or aircraft interference sudden and unexpected flight control movements may occur at a very low altitude or during the landing and rollout when the autopilot attempts to follow the beam bendsbeam bends can be followed by large aircraft especially near the ground during cat ii and iii approaches operationCurves in the glide path that are visible on the indicator, but change too fast to be followed by large aircraft. curves in the normal approach procedure because of 'noise abatement'. curved approaches made with the aid of the instrument landing system.
Question 209-37 : In an ils concerning the localiser principle of operation the difference in depth of modulation ddm will ?
Increase with displacement from the centerline.
Decrease with displacement from the centerline. increase with left displacement from the centerline and decrease with right displacement from the centerline. increase from center position to half full scale of the needle of the indicator and decrease until full scale of the needle.
Question 209-38 : Concerning the glidepath principle of operation in an ils the difference in depth of modulation ddm will ?
Increase with displacement above or below the glidepath.
Question 209-39 : The identification of a dme in combination with a collocated vor is as follows ?
In a period of 40 seconds the dme ident will be heard once on an audio frequency of 1350 hz.
When identifying a dme station co located with a vor station the identification signal with the higher tone frequency is the dme which idents approximately every 40 secondsEvery 30 seconds the dme ident will be repeated. the dme ident will repeat three times every period of 30 seconds. the vor ident and dme ident are the same and no difference can be heard.
Question 209-40 : An aircraft is flying on the 245 radial with a magnetic heading of 250°on the cdi the crs is set to 060which cdi shows the correct indications err a 062 477 ?
Figure d.
We are on radial 245° selected course is 060° com encom062 477jpgthe aircraft heading is irrelevantFigure a. figure b. figure c.
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