Pregunta 1
Pregunta
1.1 In the first solo across the Atlantic in 1927, how did Charles Lindbergh keep control of the airplane while flying in clouds and darkness?
Pregunta 2
Pregunta
Name three instruments used by the Wright Brothers in their first flight that marked the beginning of what would become "avionics".
Respuesta
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Stopwatch
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turn-and bank
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Prop counter
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Wind speed
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earth inductor compass
Pregunta 3
Pregunta
1.3 What generated power for Lindbergh's earth induct compass?
Respuesta
-
a battery
-
an anemometer
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an alternator
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an engine
Pregunta 4
Pregunta
1.4 Which of the following systems airlines not consider part of "avionics"?
Respuesta
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Turbocharching
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fire detection
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landing gear
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air conditioning
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water-waste
-
air
-
starting
Pregunta 5
Pregunta
1.5 What technology was widely adopted in avionics to reduce size and weight, as well as provide greatly increased function.
Respuesta
-
semiconductor
-
radio waves
-
transponder
-
vacuum tubes
Pregunta 6
Pregunta
1.6 What system, made possible by digital electronics, greatly reduces the problem of mid-air collisions?
Pregunta 7
Pregunta
1.7 What replaces early "steam gauges" in aircraft instrument panels?
Respuesta
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Flat LCD panels
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CRT panels
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some other crazy answer
Pregunta 8
Pregunta
1.8 How can the function of an electronic instrument be easily enhanced?
Pregunta 9
Pregunta
1.9 What does "CNS," which describes basic functions of avionics, stand for?
Pregunta 10
Pregunta
1.10 "FADEC" is.
Respuesta
-
An automatic electronic system that controls engine efficiency by using the less fuel as possible
-
An automatic electronic system that controls airplane primary control surfaces in order to take workload from the pilot
Pregunta 11
Pregunta
1.11 Name the world body that deliberates future aviation technology?
Pregunta 12
Pregunta
2.1 Radio frequencies are measured in Hertz (Hz), after Heinrich Hertz, What was his contribution to communications?
Pregunta 13
Pregunta
What was the first system for marking cross-country airways?
Respuesta
-
NDB
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ADF
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lighted beacons
-
radio airways
Pregunta 14
Pregunta
What was the first instrument to enable pilots to maintain control of an airplane without seeing outside the cockpit?
Pregunta 15
Pregunta
What component led to the artificial horizon and autopilot?
Respuesta
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Vacuum pump
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auto pilot computer
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gyro
Pregunta 16
Pregunta
? Name the developer of the autopilots early systems.
Respuesta
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Thorne-Baker
-
Jimmy Doolittle
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Alexander Graham Bell
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Elmer Sperry
Pregunta 17
Pregunta
What type of transmitter sent the first radio message from an airplane to the ground?
Pregunta 18
Pregunta
Who was the pioneer who flew the flrst in strument flight, sometimes known as "blind flying," in 1929?
Respuesta
-
Jimmy Doolittle
-
Samuel Morse
-
Elmer Sperry
Pregunta 19
Pregunta
What system in Air Traffic Control replaced position reports by voice?
Respuesta
-
reports by Morse code
-
reports by ACARS
-
Reports by datalink
Pregunta 20
Pregunta
3.2 What is the frequency coverage of the VHF com band?
Respuesta
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3 to 30 Mhz
-
30 to 300 Mhz
-
300 to 3000 Mhz
Pregunta 21
Pregunta
What is the narrowest spacing for channels in the VHF com band?
Respuesta
-
3.88 Khz
-
8.33 Khz
-
8.33 Mhz
-
25 Khz
Pregunta 22
Pregunta
3.6 What is the purpose of a mic key line?
Respuesta
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provide the signal that de-activate the microphone
-
provide the signal that activate the microphone
-
call Mic Key
-
Permits the use of the comminication receiver
Pregunta 23
Pregunta
3.7 A typical com radio has two frequencys
Pregunta 24
Pregunta
3.8 What is the purpose of a squelch?
Respuesta
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Allows the user to hear throught the radio interference Caused by the atmosphere
-
is provides the mean so the user can perform a quick test on the com receiver
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it provides interfece between ATC and pilot
-
is a filter of atmospheric noise that incorporate the receiver in order to provide a clean sound
Pregunta 25
Pregunta
3.9 What function does the "com test" control provide?
Pregunta 26
Pregunta
3.10 Where is the LRU (line replaceable unit) for a com transceiver of a large aircraft located?
Respuesta
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wheel well compartment
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electronic bay
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cockpit
-
landing gear
Pregunta 27
Pregunta
3.11 What is a radio management system?
Respuesta
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I dont know, it does not really exist
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is a unit the provide all of the differents com LRU control buttons and advisories in a single unit
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It is a universal com control panel located on the cockpit
Pregunta 28
Pregunta
3.12 What is the third VHF com radio of an airIiner often used for?
Pregunta 29
Pregunta
4.1 Are High Frequency communications not as reliable as those of VHF because the ionosphere is always changing between day and night and season to season
Pregunta 30
Pregunta
4.2 What is the advantage of "Autotune.“
Pregunta 31
Pregunta
it concentrates all of the transmitter power in only on of three components
Respuesta
-
LSB modulation
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USB modulation
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AM modulation
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carrier wave
Pregunta 32
Pregunta
4.4 What made HF datalink successful?
Respuesta
-
the extremely huge antennainternetworked
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HFDL system relationship to HF voice
-
Automatic selection of data rates:
-
Digital signal processing
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pre-assigned frequency to communicate with the responsible ATC
-
HF ground stations
Pregunta 33
Pregunta
4.7 What is the purpose of an HF antenna coupler?
Pregunta 34
Pregunta
4.6 check the correct aseverations on HF datalink
Respuesta
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Data Relieves Congestion on Voice Frequencies
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-Data Detects Errors and Automatically Retransmits
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Shorter Message Transmission Time (Iess than 3 seconds vs more than 1 minute)
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it is the preffered system of communications in short fligths
Pregunta 35
Pregunta
5.1 Select those that are true about satellite communications?
Respuesta
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it is Free from atmospheric interference and limited bandwidth
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it is not Free from atmospheric interference and limited bandwidth
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Satcom signals penetrate the ionosphere without bending or reflecting
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Satcom signals can not penetrate the ionosphere without bending or reflecting
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are unaffected by electrical noise or weather
-
are affected by electrical noise or weather
Pregunta 36
Pregunta
5.2 What is the name of the next generation air traffic control system based on satellites?
Pregunta 37
Pregunta
5.3 How many Inmarsat satellites provide global coverage, and where are they located?
Respuesta
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They are 24 satellites of GPS constellation in six planes
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four satellites that hover over the equator
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they are four satellites that are not geostacionary instead each one can see all the following regions
871 Atlantic Ocean Region – East (AOR-E)
872 Pacific Ocean Region (POR)
873 Indian Ocean Region (IOR)
874 Atlantic Ocean Region – West (AOR-W
Pregunta 38
Pregunta
The two major components of the satcom system are Ground Earth Station and Aircraft Earth Station
Pregunta 39
Pregunta
satcom antenna that supports the full range of satcom services
Respuesta
-
low gain
-
intermedium gain
-
high gain
Pregunta 40
Pregunta
select satcom antennas that must be highly directional?
Respuesta
-
low gain
-
high gain
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conformal
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intermedium gain
Pregunta 41
Pregunta
5.9 After satellite messages are received at a GES, how do they get to their final destination?
Pregunta 42
Pregunta
5.10 On what band does the aircraft send and receive satellite communications?
Pregunta 43
Pregunta
5.11 What is the purpose of a Beam Steering Unit?
Respuesta
-
keeps the elements pointed at the satellite as the airplane position changes
-
converts signals from an intermediate frequency up into the L-band
-
SDU interfaces with the airplane navigation system
Pregunta 44
Pregunta
5.12 What is the typical location on the airplane for an electromechanically steered antenna?
Pregunta 45
Pregunta
5.13 communications satellites appear to remain fixed in one position?
Pregunta 46
Pregunta
6.1 What is the meaning of the abbreviation "ACARS"?
Respuesta
-
Aircraft Communication Addressing and Repair System
-
Aircraft Communication Air and Reporting System
-
Aircraft Communication Addressing and Reporting System
Pregunta 47
Pregunta
6.2 What type of communications occur on ACARS?
Respuesta
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datalink through LF
-
datalink through L band
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datalink through VHF
-
datalink through HF
-
datalink through UHF
Pregunta 48
Pregunta
6.3 networks operates ground and satellite services for ACAR are ARINC and SITA
Pregunta 49
Pregunta
6.4 What is the meaning of the ACARS message "0001 OFF"
Respuesta
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preflight and taxi
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en route
-
approach and landing
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none of the options
Pregunta 50
Pregunta
6.5 an ACARS message received only by the aircraft it’s intended for?
Pregunta 51
Pregunta
7.1 What does the contraction "Selcal” mean?
Respuesta
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Sectional calling
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Local calling
-
selective calling
Pregunta 52
Pregunta
7.2 Select the reasons why Selcal is used.
Respuesta
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During oceanic flights, aircraft monitor a HF (high frequency) radio for clearances from a ground controller from long period of time
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HF reception is often noisy
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a pilot prefers to turn down the audio He will not miss calls intended for him
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VHF com are not to trust
Pregunta 53
Pregunta
7.3 How many tones are in a Selcal code?
Pregunta 54
Pregunta
7.4 How many Selcal tone pairs are transmitted simultaneously?
Pregunta 55
Pregunta
7.5 Can two aircraft have the same Selcal code?
Pregunta 56
Pregunta
7.6 if a pilot receives a Selcal intended for a different airplane
Pregunta 57
Pregunta
8.1 how many are sent out by an ELT during a distress call?
Pregunta 58
Pregunta
8.2 an ELT must be mounted
Pregunta 59
Pregunta
8.3 Name the satellites that pick up and relay ELT signals?
Respuesta
-
Cospas
-
Sarsat
-
Doppler
-
Leosar
-
Geosar
Pregunta 60
Pregunta
8.4 a geostacionary satellite
Pregunta 61
Pregunta 62
Pregunta
The 406 system is a mixture of Leosar and Geosar satellites. Leosar ("low earth orbit search and rescue") completely covers the globe
Pregunta 63
Pregunta
9.1 Is there a combined VOR and Tacan navigational station?
Pregunta 64
Pregunta
9.2 What problem of early radionavigation did VOR overcome?
Pregunta 65
Pregunta
9.3 VOR waves travel
Pregunta 66
Pregunta
9.4 Name the two major components of a VOR signal
Respuesta
-
frecuency modulation
-
variable phase
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subcarrier
-
amplitud modulation
-
reference signal
Pregunta 67
Pregunta
9.5 The reference phase broadcasts in what direction?
Pregunta 68
Pregunta
9.6 The variable phase rotates 60 times per second
Pregunta 69
Pregunta
9.6 The variable phase rotates 10 Times per second
Pregunta 70
Pregunta
9.7 What happens when the variable phase moves through magnetic north (O degrees)?
Respuesta
-
a reference phase beams in 360 directions
-
a reference phase is on its lowest frecuency
-
a reference phase is on its highest frecuency
Pregunta 71
Pregunta
9.8 the VOR receiver know its bearing from the VOR station by counting time
Pregunta 72
Pregunta
9.9 Besides fixed and variable phase signals, are there other information broadcasted by a VOR station?
Pregunta 73
Pregunta
9.10 Why is it necessary to place the reference phase signal on an FM subcarrier?
Respuesta
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because it is a to low frecuency
-
because it is in a to hi frecuency
-
because its a signal with little power
Pregunta 74
Pregunta
9.11 What is the purpose of the course deviation indicator (CDI) on a VOR receiver?
Respuesta
-
indicates the airplane heading
-
indicates the VOR graund station magnetic bearing selected on the instrument
-
indicates the VOR graund station runway
Pregunta 75
Pregunta
• 10.2 How is RVR (Runway Visual Range) measured on an ILS runway?
Pregunta 76
Pregunta
• 10.3 Name the categories of ILS.
Pregunta 77
Pregunta
10.4 What component of an ILS provides an ILS provides an extended centerline to the runway?
Respuesta
-
VNAV
-
glideslope
-
azimuth
-
LNAV
-
localizer
Pregunta 78
Pregunta
10.5 IS VNAV the ILS component that provides vertical guidance to a runway?
Pregunta 79
Pregunta
10.6 How many channels are allocated to localizers?
Pregunta 80
Pregunta
10.7 in general aviation The localizer frequency is selected on the
Pregunta 81
Pregunta
10.8 The frequencies of the two audio tones that provide left-right guidance or localizer are
Pregunta 82
Pregunta
10.9 When a localizer frequency is selected on the VOR receiver, the indicator needle indicates
Pregunta 83
Pregunta
10.9 When a localizer frequency is selected on the VOR receiver, the indicator needle deflected full right indicates 2.5 degrees off the center line... or more
Pregunta 84
Pregunta
10.11 The compass locator of an ILS is received on the
Respuesta
-
Inner marker beacon
-
middle marker beacon
-
outer marker beacon
Pregunta 85
Pregunta
10.12 The localizar frecuency is tuned automatically when glideslope frequenci is selected on the receiver?
Pregunta 86
Pregunta
11.1 select What were reasons for approving the Microwave Landing System?
Respuesta
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ILS has only 40 frequencies
-
An ILS serves one runway with a single course
-
the repeated "I hear music” he reported to the controller
-
Installing an ILS at an airport is not simple
-
the GPS technology was out of reach
Pregunta 87
Pregunta
11.2 MLS creates inbound courses to runways by a scanning beam which moves back and forth beyond either side of the runway, this is called the ___________________________signal.
Respuesta
-
glideslope
-
marker
-
localizer
-
azimuth
Pregunta 88
Pregunta
11.4 An MLS scanning beam determine the centerline of a runway by a principle called distance Reference Scanning Beam
Pregunta 89
Pregunta
11.4 An MLS scanning beam determine the centerline of a runway by a principle called time Reference Scanning Beam
Pregunta 90
Pregunta
11.5 Why are there so few MLS installations at airports?
Respuesta
-
it is to new
-
it is to expensive
-
Navstar systm was borned
Pregunta 91
Pregunta
11.6 What type of receiver can use ILS, MLS and GPS signals?
Pregunta 92
Pregunta
On what bands does ADF operate?
Pregunta 93
Pregunta
An ADF with a fixed compass card can only indicate _ bearing to an NDB (non-directional beacon) station.
Respuesta
-
Magnetic north
-
Magnetic bearing
-
Relative bearing
-
Magnetic heading
Pregunta 94
Pregunta
When the edge of an ADF loop points toward the station, strongest signal is received. This is known as a?
Pregunta 95
Pregunta
When the flat side of the loop faces the station, the received signal is weakest. This is known as a?
Pregunta 96
Pregunta
Which is used by the ADF receiver for determining direction, the peak or null?
Pregunta 97
Pregunta
What is the purpose of a sense antenna?
Respuesta
-
Determinar dirección
-
Corregir el cuadrante
-
Determinar sentido
-
Determinar BFO
Pregunta 98
Pregunta
Is "quadrantal error, a condition in which the loop antenna is not in a extremely straight line with the NDB?
Pregunta 99
Pregunta
How is direction-finding selected'?
Respuesta
-
Activating the ADF function
-
Deactivating the ADF function
-
Activating the BFO function
-
Activating the ET/FLT function
Pregunta 100
Pregunta
What is the function of the switch marked "BFO" or "Tone"'?
Respuesta
-
It creates an audio from the NDB stations without audio identifier
-
It helps locate very weak NDB stations
-
Is makes possible the audio receptions if form of morse code by disabling the loop antenna
Pregunta 101
Pregunta
What type of interference may occur in a ADF receiver?
Pregunta 102
Pregunta
An airborne DME sends out a pulse known as an?
Respuesta
-
Jitter
-
Interrogating pulses
-
Answer pulse
-
Slant range
Pregunta 103
Pregunta
DME is a component of a military system known as?
Respuesta
-
VORTAC
-
TACAN
-
MILITARY DME
Pregunta 104
Pregunta
In addition to distance-to-station, an airborne DME computes and?
Pregunta 105
Pregunta
A distance error in DME is called Slant Range?
Pregunta 106
Pregunta
All aircraft interrogating the same DME ground station are on the same frequency. How does an aircraft identify its replies from all others?
Respuesta
-
Due to the GS reply jitter is identical of that of the interrogation
-
Due to that each aircraft sends and random spacing pair of pulse that is different from all others
-
Due to that the airplane first makes a link with the ground station
Pregunta 107
Pregunta
How is a DME station tuned in?
Respuesta
-
With the knob in the DME panel, you select the DME frequency.
-
With the knob in the DME panel, you select the VORTAC frequency.
-
With the knob in the DME panel, you select the VOR frequency.
-
the radio automatically channels the correct DME frequency.
Pregunta 108
Pregunta
What happens when more than about 100 aircraft interrogate the same DME ground station?
Pregunta 109
Pregunta
does the DME ground station delay its reply by 50 microsecond To take time to copy aircraft interrogating panel?
Pregunta 110
Pregunta
Does the DME station transmit an ID?
Pregunta 111
Pregunta
A TCAS aircraft transmits an interrogation ?
Respuesta
-
Once per second
-
Twice per second
-
4 times per second
-
10 times per second
Pregunta 112
Pregunta
How does an intruder aircraft with an ATCRBS (early type) transponder reply to TCAS interrogations?
Respuesta
-
With an address
-
With an Threat Advisory
-
Resolution Advisory
Pregunta 113
Pregunta
How does an intruder aircraft with a Mode S transponder reply to TCAS interrogations?
Respuesta
-
With a 1090 MHz Datalink Resolution Advisory
-
With a 1090 MHz Datalink Threat Advisory
-
With a 1030 MHz Datalink Resolution Advisory
-
With a 1030 MHz Datalink Threat Advisory
Pregunta 114
Pregunta
How does TCAS determine the direction of a threat?
Pregunta 115
Pregunta
does TCAS determine the distance of a threat the same way the SSR?
Pregunta 116
Pregunta
How does TCAS determine whether the other aircraft is a threat?
Respuesta
-
If it is within 2.1 NM
-
If it is within 3.3 NM
-
If it is within 20 NM
Pregunta 117
Pregunta
Name the two kinds of warnings issued by TCAS
Pregunta 118
Pregunta
What does an Resolution Authority (RA) do?
Respuesta
-
Makes the other aircraft in collision course to appear on the screen
-
Tells the othe aircraft to fly up or down and left or right
-
Tells the othe aircraft to fly up or down
Pregunta 119
Pregunta
If two TCA aircraft are closing, what prevents them from climbing, and flying into each other?
Respuesta
-
The pilot resolution
-
The TCAS resolution
Pregunta 120
Pregunta
Where is the technique of “whisper-shout” most useful?
Respuesta
-
In cruise flight
-
In landings only
-
Near airports areas
Pregunta 121
Pregunta
does the directional antenna reduce the number of replies for each interrogation?