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Multiple > protocol : Your aircraft is heading 075°m the obi is set to 025° .the vor indications ?

Question 179-1 : 205° and 295° 295° and 025° 025° and 115° 115° and 205°

.for training purpose .luizmonteiro learning vor.. 2580.the to indication means you are closer to the 025° to the beacon than the 025° from the beacon the 025° to the beacon is the 025 + 180 = 205° radial you are between the 115° radial and the 295° radial to the south west of the beacon .since the needle deflection is to the right you must turn right to join the selected 205° radial inbound or after passing the beacon the 025° radial outbound .it means that we cannot be right of the radial 205° thus we are between '205° and 295°' radials exemple 279 205° and 295°.205° and 295°.

Which of the following affects vdf range ?

Question 179-2 : The height of the transmitter and of the receiver coastal refraction sky wave propagation strength of the pilot's voice when transmitting

exemple 283 the height of the transmitter and of the receiver.the height of the transmitter and of the receiver.

Which of the following errors is associated with the use of vor ?

Question 179-3 : Scalloping coastal refraction quadrantal error night effect

.definition says 'one of a series of curves along an edge' same as the shell r petrol sign . 2581.when you get scalloping on a vor your aircraft will fly a series of curves like a snake as opposed to a constant heading you could expect from a vor exemple 287 scalloping.scalloping.

What is the audio frequency of the inner marker ?

Question 179-4 : 3000 hz 1300 hz 400 hz 75 mhz

.icao annex 10 aeronautical telecommunications volume 1 radio navigation aids .3 1 7 4 modulation.3 1 7 4 1 the modulation frequencies shall be as follows. a inner marker when installed 3 000 hz.b middle marker 1 300 hz.c outer marker 400 hz.the frequency tolerance of the above frequencies shall be plus or minus 2 5 per cent and the total harmonic content of each of the frequencies shall not exceed 15 per cent.3 1 7 4 2 the depth of modulation of the markers shall be 95 per cent plus or minus 4 per cent exemple 291 3000 hz.3000 hz.

What is the 'q' code for a magnetic bearing from a vdf station ?

Question 179-5 : 'request qdr' 'request qnh' 'request qte' 'request qdm'

exemple 295 'request qdr'.'request qdr'.

What is measured in order to establish aircraft position in relation to the ?

Question 179-6 : The difference in depth between the 90hz modulation and the 150hz modulation the difference in phase between the 90hz modulation and the 150hz modulation the bearing to the localizer antenna found by means of a loop antenna the difference in time between the 90hz modulation and the 150hz modulation

exemple 299 the difference in depth between the 90hz modulation and the 150hz modulation.the difference in depth between the 90hz modulation and the 150hz modulation.

What are the modulation frequencies of the two overlapping lobes that are used ?

Question 179-7 : 90 hz and 150 hz 75 khz and 135 khz 328 mhz and 335 mhz 63 mhz and 123 mhz

. 2582 exemple 303 90 hz and 150 hz.90 hz and 150 hz.

Which of the following correctly describes the instrument landing system ils ?

Question 179-8 : Two overlapping lobes on the same vhf carrier frequency two overlapping lobes on the same uhf carrier frequency a pencil beam comprising a series of smaller beams each carrying a different modulation two overlapping lobes on different radio carrier frequencies but with the same modulation

.radiation pattern are 90 hz and 150 hz signals. 2582.distribution of the frequencies seen in the approach direction . 2583.if the aircraft is exactly on the glidepath on the exact runway centreline it receives a balance between modulations exemple 307 two overlapping lobes on the same vhf carrier frequency.two overlapping lobes on the same vhf carrier frequency.

Which one is the most correct statement regarding the range of the dme system ?

Question 179-9 : Range within 'line of sight' and maximum 200 nm operates on vhf operates on the principle of phase comparison has unlimited range due to ground wave propagation

exemple 311 range within 'line of sight', and maximum 200 nm.range within 'line of sight', and maximum 200 nm.

You are on a compass heading of 090° on the 255 radial from a vor .you set the ?

Question 179-10 : Full scale deflection left with a 'from' indication full scale deflection right with a 'from' indication full scale deflection left with a 'to' indication full scale deflection right with a 'to' indication

. 2584.for training purpose .luizmonteiro learning vor exemple 315 full scale deflection left with a 'from' indication.full scale deflection left with a 'from' indication.

Which one of the statements below is correct regarding the dme ?

Question 179-11 : The dme operating frequencies are in the uhf frequency band two lines of position obtained from two different dme's give an unambiguous fix the indicated distance is the ground distance measured from the aircraft's projected position on the ground to the dme ground installation the dme ground station is always co located with a vor station

exemple 319 the dme operating frequencies are in the uhf frequency band.the dme operating frequencies are in the uhf frequency band.

What actually happens in the adf receiver when the bfo position is selected ?

Question 179-12 : The bfo circuit imposes a tone onto the carrier wave to make the ndb's ident audible the bfo circuit oscillates at an increased frequency in order to allow identification of a2a ndbs the bfo circuit is de activated the bfo circuit is activated and the receiver accepts only a1a modulated signals

Bfo beat frequency oscillator .on modern aircraft the bfo is activated automatically exemple 323 the bfo circuit imposes a tone onto the carrier wave to make the ndb's ident audible.the bfo circuit imposes a tone onto the carrier wave to make the ndb's ident audible.

If a failed rmi rose is stuck on 090° and the adf pointer indicates 225° the ?

Question 179-13 : 135° impossible to read due to the rmi failure 315° 225°

.the top of the rmi is always where the aircraft is pointing heading and hence if it's stuck on 090° you simply subtract that from the number the needle's pointing to get the relative bearing.in other words if you want to join the ndb station you have to turn right by 135° exemple 327 135°.135°.

Full scale deflection of the localiser needle indicates that the aircraft is ?

Question 179-14 : 2 5° offset from the localiser centreline 5° offset from the localiser centreline 1 25° offset from the localiser centreline 10° offset from the localiser centreline

. /com en/com062 47 jpg.the indication on the cockpit instrument is the same as that of a vor a right left or centered needle the procedure for getting on course is also the same fly toward the needle .full scale deflection of the cdi course deviation indicator needle is approximately 2 5° movement of the cdi is therefore four times more sensitive exemple 331 2.5° offset from the localiser centreline.2.5° offset from the localiser centreline.

In order to measure the radial from a vor the aircraft vor receiver ?

Question 179-15 : Measures the phase difference between the reference phase and the variable phase of the signal measures the time difference between reception of the two signals transmitted from the ground installation uses pulse technique to determine the radial measures the time difference between sending the interrogation signal and receiving the transponder signal

.two signals are transmitted from the ground station above the first is the non directional reference phase and the second is the rotating variable phase both signals are transmitted 30 times per second the variable phase transmits cyclically around the 360 degrees of the azimuth approximately 30 times per second the reference phase signal is transmitted every time the variable phase transmission sweeps past magnetic north . 2585.radial information is derived from the difference in time between the two signals which would be different for each radial this computation is referred to as phase difference and is displayed by the airborne equipment exemple 335 measures the phase difference between the reference phase and the variable phase of the signal.measures the phase difference between the reference phase and the variable phase of the signal.

Assuming a five dot display on either side of the ils localiser cockpit display ?

Question 179-16 : 1 0° to the left 2 0° to the left 2 0° to the right 1 0° to the right

.five dot display on either side course deviation indicator cdi . 2586.if the cdi is deflected 2 dots to the right we have to turn right to correct our path so we are on the left of the centerline exactly 1° to the left exemple 339 1.0° to the left.1.0° to the left.

An ndb is on a relative bearing of 316° from an aircraft given .compass ?

Question 179-17 : 254° 252° 072° 074°

. 2587.compass heading deviation west = magnetic heading.270° 2°w = 268°.magnetic heading + variation east = true heading.268° + 30° = 298°.the ndb is on a relative bearing of 316° from the aircraft 360° 316° = 44° left of the nose the true bearing to the beacon is 298° 44° = 254° exemple 343 254°.254°.

If you are on an ils approach and in case your glide slope indicator shows a ?

Question 179-18 : You should commence a go around because obstacle clearance is no longer ensured you maintain pitch until you regain the desired glide slope you may keep on flying the approach if you are on centerline there will be significant beam bends encountered

exemple 347 you should commence a go-around because obstacle clearance is no longer ensured.you should commence a go-around because obstacle clearance is no longer ensured.

An aircraft at fl 100 should be able to receive a vor groundstation at 100 ft ?

Question 179-19 : 135 nm 123 nm 130 nm 145 nm

.for coverage and range to calculate the range in nm official learning objectives formula is .1 23 x square root transmitter height in feet + 1 23 x square root receiver height in feet..1 23 x sqrt100 + 1 23 sqrt10000 = 135 3 nm. sqrt square root exemple 351 135 nm.135 nm.

An aeroplane flies over position a which is due north of a vor station sited at ?

Question 179-20 : 010° 018° 350° 342°

.the aircraft is positioned due north of the vor on a bearing of 000° true .magnetic variation is applied at the vor ground station therefore in this case a magnetic variation of 010°w is applied .when variation is west this means that at the vor magnetic north is to the west of true north . 2588.the aircraft is on the 010° radial from the vor exemple 355 010°.010°.

Full deflection on a glide slope indicator indicates that the aircraft is ?

Question 179-21 : 0 7° above or below the correct glide path 1 25° above or below the correct glide path 1 5° above or below the correct glide path 2 5° above or below the correct glide path

. 2589 exemple 359 0.7° above or below the correct glide path.0.7° above or below the correct glide path.

On what carrier frequency does the inner marker transmit ?

Question 179-22 : 75 mhz same frequency as the localizer same frequency as the glide path 3000 hz

According to icao annex 10 all marker beacons operate on 75 mhz carrier frequency.modulation frequencies are .outer marker 400 hz.middle marker 1300 hz.inner marker 3000 hz exemple 363 75 mhz.75 mhz.

The indicated range from a dme station is ?

Question 179-23 : Slant range ground range 0 when passing overhead the station ground range only if the beacon is co located with vor

.the indicated range from a dme station is slant range . 2590 exemple 367 slant range.slant range.

According to icao 8168 what is regarded as the maximum safe deviation below the ?

Question 179-24 : Half scale deflection one quarter scale deflection three quarter scale deflection full scale deflection

.icao doc 8168 .3 3 flight procedures for racetrack and reversal procedures. 3 3 4 descent .the aircraft shall cross the fix or facility and fly outbound on the specified track descending as necessary to the procedure altitude/height but no lower than the minimum crossing altitude/height associated with that segment if a further descent is specified after the inbound turn this descent shall not be started until the aircraft is established on the inbound track an aircraft is considered established when it is. a within half full scale deflection for the ils and vor or..b within ±5° of the required bearing for the ndb exemple 371 half scale deflection.half scale deflection.

On which of the following displays are you able to get a direct read out no ?

Question 179-25 : Moving card adf and rmi fixed card adf and rmi moving and fixed card adf fixed card adf only

. 2591.a fixed card is aligned with a heading of 000° and therefore only displays relative bearings .on a rmi on top of the instrument you can read your actual heading on a moving card adf you have to manually align your actual heading with the knob exemple 375 moving card adf and rmi.moving card adf and rmi.

What according to icao annex 10 is the range of a locator ?

Question 179-26 : 10 25 nm 25 50 nm 50 100 nm 100 300 nm

exemple 379 10 - 25 nm.10 - 25 nm.

According to icao annex 10 in which frequency band s does a locator normally ?

Question 179-27 : Lf/mf mf/hf hf hf/vhf

.vor operating frequencies vhf.localiser vhf.marker beacon vhf..dme operating frequencies uhf.glide slope uhf.gnss/gps uhf.l1 and l2 frequencies used by navstar/gps uhf..ils localiser and glide slope vhf and uhf bands.microwave landing system mls shf.airborne weather radars shf.locator lf/mf exemple 383 lf/mf.lf/mf.

A vor and an ndb are co located an aircraft equipped with an rmi is flying away ?

Question 179-28 : The adf needle moves the vor needle does not neither the vor or the ndb needles move both vor and adf needles move the vor needle moves the adf needle does not

.application of magnetic variation is at beacon position for a vor and at aircraft position for a ndb.only the adf relative bearing will show the change of magnetic variation exemple 387 the adf needle moves, the vor needle does not.the adf needle moves, the vor needle does not.

Which of these markers has the highest audible frequency ?

Question 179-29 : Inner outer middle airways

exemple 391 inner.inner.

A mls without dme p provides ?

Question 179-30 : An ils like approach an approach with a curved path but not staged a category 3 approach a staged approach but not with a curved path

exemple 395 an ils-like approach.an ils-like approach.

False beams on the ils glidepath are ?

Question 179-31 : Only found above the correct glideslope only found if flying the backbeam ils approach only found if more than 10° left or right of localiser centreline only found below the correct glideslope

exemple 399 only found above the correct glideslope.only found above the correct glideslope.

On an ils approach the glidepath needle is fully down how much deflection does ?

Question 179-32 : 0 7° 2 5° 10° 5°

. 2589.full scale deflection on the glidepath needle corresponds to approximately 0 7° from the ils glidepath centre line exemple 403 0.7°.0.7°.

The audio modulation of the middle marker is keyed to give ?

Question 179-33 : Alternating dots and dashes at a rate of 2 dashes per second and 6 dots per second continuous dashes at a rate of 2 per second continuous dots at a rate of 6 per second a sequence of 3 dashes 3 dots and 3 dashes every second

exemple 407 alternating dots and dashes at a rate of 2 dashes per second and 6 dots per second.alternating dots and dashes at a rate of 2 dashes per second and 6 dots per second.

If you are flying a back course ils you are flying a ?

Question 179-34 : Non precision approach on the reciprocal runway of the precision approach runway non precision approach on the precision approach end of the runway precision approach on the reciprocal runway of the precision approach runway precision approach on the precision approach runway

.in a conventional localizer the signal radiates outwards from the end of the runway along the extended center line of the runway usually a by product of this is a signal that radiates in the reverse direction some installations take advantage of this 'spurious signal' and use it for an instrument approach . 2592.localizer signal also 'propagating' in the opposite direction back down the runway.for information a non precision approach is an instrument approach and landing which utilises lateral guidance but does not utilise vertical guidance.a precision approach is an approach in which range azimuth and glide slope information are provided to the pilot exemple 411 non precision approach on the reciprocal runway of the precision approach runway.non precision approach on the reciprocal runway of the precision approach runway.

What is a vdf referenced to ?

Question 179-35 : Magnetic north at the station magnetic north at the aircraft true north at the aircraft relative bearing to the aircraft

.vdf stations are capable of measuring the direction of arrival of radio transmissions from aircraft vdf measures the bearing of the aircraft with reference to true or magnetic north at the station exemple 415 magnetic north at the station.magnetic north at the station.

A locator .1 is a low powered beacon.2 is a high powered beacon.3 has a ?

Question 179-36 : 1 and 3 1 and 4 2 and 3 2 and 4

exemple 419 1 and 3.1 and 3.

Which of the following alternatives is correct regarding audio and visual ?

Question 179-37 : Audio 1300 hz alternating dots and dashes .visual amber audio 400 hz 2 dashes per second .visual blue audio 75 mhz 2 dashes per second .visual blue audio 3000 hz alternating dots and dashes .visual amber

exemple 423 audio: 1300 hz, alternating dots and dashes.xsxvisual: amber.audio: 1300 hz, alternating dots and dashes.xsxvisual: amber.

Concerning the localiser principle of operation in an ils the needle of the ?

Question 179-38 : Null maximum less than 90 hz more than 150 hz

exemple 427 null.null.

Concerning the glidepath principle of operation in an ils system the needle of ?

Question 179-39 : Null maximum less than 90 hz 150 hz or 90 hz

exemple 431 null.null.

An ils receiver ?

Question 179-40 : Measures the difference in depth of modulation of the two transmitted signals measures the phase difference between the two transmitted signals compares the difference in frequency of the two transmitted signals measures the phase rotation of the two transmitted signals

exemple 435 measures the difference in depth of modulation of the two transmitted signals.measures the difference in depth of modulation of the two transmitted signals.

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