A free Premium account on the FCL.055 website! Read here
Sign up to unlock all our services and 15164 corrected and explained questions./small>


Question 193-1 : Every 10 kt decrease in groundspeed on a 3° ils glidepath will require an approximate ? [ Level reports ]

Decrease in the aircraft's rate of descent of 50 ft/min

.3° glide > 5% rate of descent.vz ft/min = glide % x vs.vz ft/min = 5% x 10 kt.vz ft/min = 50 ft/min exemple 293 Decrease in the aircraft's rate of descent of 50 ft/min.

Question 193-2 : Mls installations notified for operation unless otherwise stated provide azimuth coverage of ?

+ or 40° about the nominal courseline out to a range of 20 nm

Admin . 2571.icao annex 10 aeronautical telecommunications volume 1 radio navigation aids .3 11 5 3 2 1 coverage.3 11 5 3 2 1 1 approach region .a laterally within a sector of 80 degrees normally plus and minus 40 degrees about the antenna boresight which originates at the approach azimuth antenna phase centre .b longitudinally from the elevation antenna in the direction of the approach to 37 km 20 nm from threshold exemple 297 + or - 40° about the nominal courseline out to a range of 20 nm.

Question 193-3 : Instrument landing systems ils glide paths provide azimuth coverage i ° each side of the localiser centre line to a distance of ii nm minimum from the threshold ?

I 8 ii 10

Admin . 2572 exemple 301 (i) 8 (ii) 10.

Question 193-4 : The rate of descent required to maintain a 3 25° glide slope at a groundspeed of 140 kt is approximately ?

760 ft/min

Admin .3° glide > 5% rate of descent.so 3 25° glide > 5% '+'.divide speed by 2 add a zero and add a little bit more .formula .glide ° = glide % x 0 6.and.vz ft/mn = glide % x vs.then .glide % = 3 25 / 0 6 = 5 4.vz = 140 x 5 4 = 758 ft/mn .you can also use .rod = glideslope deg x gs kt x100 / 60.rod = 3 25 x 140 x 100 /60.rod = 758 ft/min exemple 305 760 ft/min.

Question 193-5 : In isa conditions approximately what is the maximum theoretical range at which an aircraft at fl210 may expect to receive signals from a vor facility sited 340 feet above mean sea level ?

201 nm

Admin .1 23* sqrt340 + sqrt21000 = 201 nm . sqrt square root exemple 309 201 nm.

Question 193-6 : An aircraft is flying a 3° glidepath and experiences a reduction in groundspeed from 150 kt at the outer marker to 120 kt over the threshold .the effect of this change in groundspeed on the aircraft's rate of descent will be a decrease of approximately ?

150 ft/min

Admin .at a speed of 150 kt on a 3° glidepath rate of descent is 150x5% = 750 ft/min .at a speed of 120 kt on a 3° glidepath rate of descent is 120x5% = 600 ft/min exemple 313 150 ft/min.

Question 193-7 : The principle of operation of an ils localiser transmitter is based on two overlapping lobes that are transmitted on i frequencies and carry different ii ?

I the same ii modulation frequencies

Admin . on the same frequencies means the one which you feed in your radio panel and carry different modulation frequencies difference in depth of modulation ddm between the 90 hz and 150 hz lobes exemple 317 (i) the same (ii) modulation frequencies.

Question 193-8 : An aircraft at 6400 ft will be able to receive a vor groundstation at 100 ft above msl at an approximate maximum range of ?

110 nm

Admin .1 23* sqrt100 + sqrt6400 = 110 7 nm. sqrt square root exemple 321 110 nm.

Question 193-9 : An aircraft at fl 100 should be able to receive a vor groundstation at 100 ft above msl at an approximate maximum range of ?

137 nm

.you must take into account the height of the vor and the height of the airplane . 2573.1 23 x sqrt100 + sqrt10000 = 135 3 nm . sqrt square root exemple 325 137 nm.

Question 193-10 : What is the minimum level that an aircraft at a range of 113 nm must fly in order to contact the tower on r/t for a vdf bearing from an airport sited 169 ft above msl ?

Fl65

. 1704.you must take into account the height of the transmitter and the height of the airplane.1 23 x sqrt169 + sqrt x = 113 nm.113 / 1 23 = sqrt169 + sqrt x . 113 / 1 23 sqrt169 = sqrt x.91 86 13 = sqrt x.x = 6218 ft approximately fl65. sqrt square root exemple 329 Fl65.

Question 193-11 : An aircraft is on radial 120 with a magnetic heading of 300° the track selector obs reads 330 .the indications on the course deviation indicator cdi are 'fly' ?

Left with 'to' showing

Admin . 2574.for training purpose .luizmonteiro learning vor exemple 333 Left with 'to' showing.

Question 193-12 : Given .course deviation indicator cdi for a vor is selected to 090° .from/to indicator indicates 'to' .cdi needle is deflected halfway to the right .on what radial is the aircraft ?

275°

Admin . 2575.we are on radial 275° left of the intended track aircraft heading is not important .for training purpose .luizmonteiro learning vor exemple 337 275°.

Question 193-13 : Of what use if any is a military tacan station to civil aviation ?

It can provide dme distance

.a tactical air navigation system commonly referred to by the acronym tacan is a navigation system used by military aircraft it provides the user with bearing and distance slant range to a ground or ship borne station it is a more accurate version of the vhf omnidirectional range/distance measuring equipment vor/dme system that provides bearing and range information for military aviation ..the dme portion of the tacan system is available for civil use exemple 341 It can provide dme distance.

Question 193-14 : The frequency range of a vor receiver is ?

108 to 117 95 mhz

Admin .vor receiver frequencies are found in the range of 108 00 to 117 95 mhz and the first digit after the decimal point is even . if the first digit after the decimal point is odd it is an ils localiser frequency exemple 345 108 to 117.95 mhz.

Question 193-15 : Which of the following is an ils localiser frequency ?

109 15 mhz

Admin .ils uses 108 mhz to 111 95 mhz .first odd decimal .vor receiver frequencies are found in the range of 108 00 to 117 95 mhz and the first digit after the decimal point is even . if the first digit after the decimal point is odd it is an ils localiser frequency exemple 349 109.15 mhz.

Question 193-16 : What airborne equipment if any is required to be fitted in order that a vdf let down may be flown ?

Vhf radio

exemple 353 Vhf radio.

Question 193-17 : Which of the following is an advantage of ground/df vdf let down ?

It only requires a vhf radio to be fitted to the aircraft

Admin .in order to use a vhf direction finding service the only equipment needed in the aircraft is a vhf radio transmitter/receiver the directional antenna and bearing indicator are all in the ground station exemple 357 It only requires a vhf radio to be fitted to the aircraft.

Question 193-18 : In which frequency band does the microwave landing system mls operate ?

Shf

Admin .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 361 Shf.

Question 193-19 : Given .vor station position n61° e025° variation 13°e.estimated position of an aircraft n59° e025° variation 20°e .what vor radial is the aircraft on ?

167°

Admin .the application of magnetic variation is .ndb aircraft position .vor beacon position . 1683.aircraft is south 180°t of the vor and we have to apply variation at the vor position . variation east magnetic least .180° 13° = 167° exemple 365 167°.

Question 193-20 : Which one of the following correctly lists the major ground based components of a microwave landing system mls ?

Separate azimuth and elevation transmitters dme facility

.mls is a precision approach and landing guidance system which provides position information and various ground to air data the position information is provided in a wide coverage sector and is determined by an azimuth angle measurement an elevation angle measurement and a range distance measurement exemple 369 Separate azimuth and elevation transmitters, dme facility.

Question 193-21 : The captain of an aircraft flying at fl100 wishes to obtain weather information at the destination airfield from the airfield's vor .assuming isa conditions what is the approximate maximum theoretical range at which it can be expected to obtain this information ?

123 nm

Formula .1 23* sqrt10000 = 123 nm . sqrt square root exemple 373 123 nm.

Question 193-22 : The bfo selector on an adf receiver is used to ?

Hear the ident of some ndb stations radiating a continuous wave signal

Admin .the purpose of the bfo switch on the adf receiver is to make the signal audible .bfo beat frequency oscillator exemple 377 Hear the ident of some ndb stations radiating a continuous wave signal.

Question 193-23 : An ndb transmits a signal pattern in the horizontal plane which is ?

Omnidirectional

.ndb = non directional beacon.non directional = omnidirectional exemple 381 Omnidirectional.

Question 193-24 : Dme channels utilise frequencies of approximately ?

1000 mhz

.the dme operates by transmitting to and receiving paired pulses from the ground station the transmitter in the aircraft sends out very narrow pulses at a frequency of about 1000 mhz these signals are received at the ground station and trigger a second transmission on a different frequency these reply pulses are sensed by timing circuits in the aircraft's receiver that measure the elapsed time between transmission and reception .electronic circuits within the radio convert this measurement to electrical signals that operate the distance and ground speed indicators exemple 385 1000 mhz.

Question 193-25 : A vor and dme are co located you want to identify the dme by listening to the callsign having heard the same callsign 4 times in 30 seconds the ?

Dme callsign is the one with the higher pitch that was broadcast only once

Admin .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 seconds 4 times in 30 seconds 10 seconds broadcast off exemple 389 Dme callsign is the one with the higher pitch that was broadcast only once.

Question 193-26 : Given .aircraft heading 160° m aircraft is on radial 240° from a vor selected course on hsi is 250° .the hsi indications are deviation bar ?

Behind the aeroplane symbol with the from flag showing

Admin . 1711.for training purpose .luizmonteiro learning vor exemple 393 Behind the aeroplane symbol with the from flag showing.

Question 193-27 : In a primary radar using pulse technique the ability to discriminate between targets in azimuth is a factor of ?

Beam width

Admin .the three dimensional radar beam is normally defined by its horizontal and vertical beam widths beam width is the angular width of a radar beam between points within which the field strength or power is greater than arbitrarily selected lower limits of field strength or power .for a given amount of transmitted power the main lobe of the radar beam extends to a greater distance at a given power level with greater concentration of power in narrower beam widths to increase maximum detection range capabilities the energy is concentrated into as narrow a beam as is feasible exemple 397 Beam width.

Question 193-28 : Distance measuring equipment dme operates in the ?

Uhf band and uses two frequencies

Admin .dme distance measuring equipment ground stations transmit within a uhf frequency band of 962 to 1213 mhz the interrogation and reply frequencies always differ by 63 mhz two frequencies are used because otherwise the first pulse received would be the ground return from below exemple 401 Uhf band and uses two frequencies.

Question 193-29 : A vor and a ndb are co located you cross the vor radial of 240° on a heading of 360° m in the vicinity of the station you should read an adf bearing of ?

060°

Admin . 2576.360 + 240 180 = 060°.radial = + 180° exemple 405 060°.

Question 193-30 : An adf provides the aircraft with bearing information with respect to a ground station to do this the ground station emits a signal pattern which is ?

Omnidirectional

Admin .an omnidirectional ground station antenna is an antenna system which radiates power uniformly in one plane with a directive pattern shape in a perpendicular plane . omnidirectional uniform in all directions exemple 409 Omnidirectional.

Question 193-31 : An aircraft at fl300 with a groundspeed of 300 kt is about pass overhead a dme station at msl the dme receiver is capable of determining ground speed one minute before the overhead dme speed and distance indications are respectively ?

Less than 300 kt and 7 nm

.we have a right angled triangle so .dme range² = ground range² + height².dme range² = 5² + 5².dme range = sqrt50.dme range = 7 1 nm.and as the aircraft approaches the beacon the accuracy of the groundspeed displayed reduces and under reads . 1679 exemple 413 Less than 300 kt and 7 nm.

Question 193-32 : A pilot flying an aircraft at fl 80 tunes in a vor which has an elevation of 313 m .given isa conditions what is the maximum theoretical distance at which a pilot might expect to receive the vor signals ?

151 nm

Admin .we need to convert 313 m in feet ==> 1032 ft.1 23* sqrt1032 + sqrt8000 = 149 5 nm. sqrt square root exemple 417 151 nm.

Question 193-33 : An aircraft is on the 120° radial from a vor station .course 340° is selected on the hsi horizontal situation indicator .if the magnetic heading is 070° the deviation bar relative to the aeroplane model will be ?

Behind

Admin . 1950.a hsi gives a horizontal illustration of where the selected radial is in relation to the aeroplane whereby the deviation bar represents the selected radial exemple 421 Behind.

Question 193-34 : An aircraft is situated at 30°n 005°e with a magnetic variation of 10°w .a vor is located at 30°n 013°e with a magnetic variation of 15°w .the aircraft is situated on the vor radial ?

287°

Admin .3 steps . aircraft and vor on the same latitude 30°n true radial is 270° . conversion angle 0 5 x 13 5 x sin 30° = 2°.aircraft is located west of the vor in northern hemisphere so true course at vor = 270° + 2°. last step we apply magnetic variation of 15°w at beacon position for a vor vor radial = 272° + 15° = 287° exemple 425 287°.

Question 193-35 : An aircraft passes overhead a dme station at 12000 feet above the station .at that time the dme reading will be ?

Approximately 2 nm

Admin .1 nm = 6000 ft approximatly .12000 / 6000 = 2 nm . 1948

Question 193-36 : An aircraft at fl 410 is passing overhead a dme station at mean sea level the dme indicates approximately ?

6 8 nm

Admin .1 nm = 6000 ft approximately .41000 ft / 6000 ft = 6 83 nm . 1949 exemple 433 6.8 nm.

Question 193-37 : On the qdr of 075° in the vicinity of the station with a magnetic heading of 295° the relative bearing on the adf indicator is ?

320°

Admin . 2577.relative bearings are measured clockwise from the nose of the aircraft round to the direction of the ndb .for training purpose .luizmonteiro learning vor exemple 437 320°.

Question 193-38 : The bfo selector switch on the adf control panel must be in the 'on' position to enable the pilot to ?

Hear the ident of ndbs using non a1a transmissions

Admin .if you need to hear the ident of a ndb you have to select bfo to on on the adf control panel .you will hear morse code that you can see on a jeppesen chart example . 1946.newer type non a2a does not need to be selected on to hear the ident you simply have to adjust sound volume

Question 193-39 : The obs is set on 048° to appears in the window .the needle is close to full right deflection .the vor radial is approximately ?

238°

Admin .the radials of a vor always point away from the station . 1690.we talk about inbound or outbound radial .here to appears in the window it means that we are going to the station our selected course crs is corresponding to radial 228° 048°+180° inbound .if we were on our selected course our needle will be centered .so we are left of our track and in vor/dme mode full scale deflection of the cdi is 10° .for training purpose .luizmonteiro learning vor

Question 193-40 : The obs is set to 235° .the indications of the vor are half scale deflection left and 'to' .the aircraft is on the radial ?

050°

Admin . 2578.for training purpose .luizmonteiro learning vor exemple 449 050°.


~

Exclusive rights reserved. Reproduction prohibited under penalty of prosecution.

7679 Free Training Exam