WorksheetsSYS 5 - 2
Total questions: 97
Worksheet time: 49mins
SATCOM is used to.
Monitor aircraft
Relay transmissions to and from the aircraft
Determine the position of the aircraft
121.5 MHz is what frequency?
VOR.
VHF.
ILS.
Which frequency is used to achieve line of sight radio communication?
HF.
VHF.
VHF and UHF.
Which is the frequency separation between consecutive frequencies in the VHF band
75 KHz
50 KHz
25 KHz
In Europe, each VHF communication channel is separated into:
8.33 KHz
2 KHz
25 KHz
VHF frequency is.
108 – 136.975 MHz.
108 - 112 MHz.
108 - 118 MHz.
A radio frequency of 16 MHz would be used for.
weather radar.
marker beacons.
HF communications
The call system for the captain will have the audio signal of a.
horn.
hi tone chime.
two tone chime.
The range of HF signal is between:
3 to 50 HHz
2 to 25 MHz
108 to 117.975 MHz
The range of HF signals:
beyond line-of-sight
within line-of-sight
About 25 NM
Service interphone system allows
communication between the flight deck and some areas on the aircraft.
communication to other aircraft
Communication to ATC
An aircraft is "homing" to a radio beacon whilst maintaining a relative bearing of zero. If the magnetic heading decreases, the aircraft is experiencing:
right drift
left drift
zero drift
Which of the following is the ICAO allocated frequency band for ADF receivers?
255 - 455 kHz
200 - 1750 kHz
300 - 3000 kHz
In order to obtain an ADF bearing the:
signal must be received by both the sense and loop aerials
sense aerial must be tuned separately
mode selector should be switched to “loop”
An NDB transmits a signal pattern in the horizontal plane which is:
a beam rotating at 30 Hz
bi-lobal circular
omnidirectional
The ADF reception loop is always used so that the electromotive force (EMF)
induced is zero
induced is maximum
is zero
A loop aerial, as used in the ADF, will
Always rotate at constant speed before locking on to a signal from an NDB
Will provide the most accurate bearing when it is aligned in the direction resulting in highest signal strength to the ADF receiver
Receive a minimum or null signal from a transmitter when the plane of the loop is at right angles to the direction of the transmitter
The basic information given by the ADF is
The relative bearing from the aircraft to the NDB
The magnetic bearing from the aircraft to the NDB
The true great circle track from the NDB to the aircraft
The combination of the polar diagrams of the loop and the sense aerial results in:
A cardoid polar diagram, having only one null or minimum
A figure-of-eight diagram in the vertical plane
A pencil-beam polar diagram
Of the bearing indicators available for use on ADFs, the most sophisticated one is:
The Relative Bearing Indicator
The Radio Magnetic Indicator
The Deviation Indicator
Using an ADF indicator of the manually rotateable card type:
Relative bearing is normally indicated under the pointer needle
May be combined with a VOR indicator
The card should be rotated so that the aircraft heading is at the top of the indicator
The heading read on a standard RMI is
The magnetic heading
The relative heading
The compass heading
The BFO selector on an ADF receiver is used to:
find the loop 'null' position
hear the IDENT and must always be switched ON
hear the IDENT of some NDB stations radiating a continuous wave signal
r is used to:
find the loop 'null' position
hear the IDENT and must always be switched ON
hear the IDENT of some NDB stations radiating a continuous wave signal
The principle used in VOR bearing measurement is:
beat frequency discrimination
envelope matching
phase comparison
Which frequency band is used by VOR transmissions?
SHF
UHF
VHF
An aircraft is required to approach a VOR via the 104° radial. Which of the following settings should be made on the VOR/ILS deviation indicator?
284° with the FROM flag showing
284° with the TO flag showing
104° with the TO flag showing
An Omni-bearing selector (OBS) shows full deflection to the left when within range of a serviceable VOR. What angular deviation are you from the selected radial?
less than 10°
10° or more
1.5° or more
Tune the VOR receivers to the local ground VOR station. A bearing indication difference of
no more than ± 4° is permissible.
no more than ± 6° is permissible.
no more than ± 8° is permissible.
The frequency range of a VOR receiver is:
108 to 117.95 MHz
108 to 111.95 MHz
118 to 135.95 MHz
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 'FROM' showing
right with 'TO' showing
left with 'TO' showing
The TO/FROM indicator of a VOR
Tells whether you are now flying towards or from the VOR
Tells whether a track equal to the selected bearing will bring you to or away from the VOR
Tells whether you should turn the aircraft towards or away from the CDI indication
When the warning flag on a VOR indicator appears, it may indicate
That no signal is received
That the received signal is too weak to be processed in the receiver
Both answers are correct
On an HSI (Horizontal Situation Indicator) used in combination with a VOR receiver
A pictorial presentation of aircraft deviation relative to VOR radials is provided
The lubber line will indicate the reciprocal value of the received radial
The lubber line will indicate the selected radial
When using an RMI as an indicator for the VOR receiver
You will read the drift as the angle between the OBS bug and the tip of the VOR needle
You will read the number of the received radial under the tail of the VOR needle
You will read the number of the received radial under the tip of the VOR needle
VOR uses VHF radio waves (108-117.95 MHz) with:
25 kHz separation between each channel.
50 kHz separation between each channel
1 MHz separation between each channel
An RMI slaved to a remote indicating compass has gone unserviceable and is locked on to a reading of 090°. The tail of the VOR pointer shows 135°. The available information from the VOR is:
Radial 315°, relative bearing unknown
Radial unknown, relative bearing 225°
Radial 135°, relative bearing unknown
A radar altimeter in track mode is effective to.
100 ft.
2500 ft.
2000 ft.
Which of the following frequencies is allocated to VOR?.
103.9 MHz.
127.2 MHz.
114.3 MHz
The manual VOR input is for.
glideslope.
course deviation bar.
RMI.
The VOR system comprises.
reference phase signal.
variable phase signal.
variable and reference phase signals.
If an aircraft is flying on a heading of 000 away from a VOR station, the TO/FROM indicator would show.
no indication.
from.
to
The DME (Distance Measuring Equipment) operates within the following frequencies:
962 to 1213 MHz
108 to 118 MHz
329 to 335 MHz
A typical frequency employed in Distance Measuring Equipment (DME) is:
10 MHz
1000 MHz
100 MHz
The amplitude modulation and the colour of an outer marker (OM) is:
400 Hz, blue
1300 Hz, blue
400 Hz, amber
In which frequency band does an ILS glide slope transmit?
VHF
UHF
SHF
Outer marker transmits on 75 MHz and has an aural frequency of:
1300 Hz
400 Hz
2000 Hz
What is the colour sequence when passing over an Outer, Middle and Inner Marker beacon?
white - amber - blue
amber - white - green
blue - amber – white
An aircraft carrying out an ILS approach is receiving more 90 Hz than 150 Hz modulation notes from both the localiser and glidepath transmitters. The ILS indication will show:
Fly right and fly down
Fly left and fly down
Fly right and fly up
Consider the following statements on ILS:
An ILS-approach may be flown if the localizer, glide path and marker beacons/DME are operational
If the localizer is out of service, an ILS approach with increased decision height (DH) may be carried out
ILS is the primary precision approach facility for civil aviation
The function of a locator beacon in an ILS procedure
Is to give steering information to guide the pilot during the final section of the ILS approach
Is to locate the airfield position
Is to provide a navigation aid that will clearly indicate that the aircraft is within the coverage of the ILS localizer and glide path
The middle marker is identified by
Audible alternate dots and dashes with tone 1300 Hz and an amber light
Audible alternate dots and dashes with tone 800 Hz and an amber light
Audible alternate dots and dashes with tone 800 Hz and a white light
In which frequency band do most airborne weather, and ground based ATC, radar systems operate?
SHF
UHF
EHF
A Surveillance Radar installation will often consist of
A Primary radar and a Secondary Surveillance Radar (SSR)
A primary Radar and a VDF
A Primary Radar and a Precision Radar
Airborne weather radar systems use a wavelength of approximately 3 cm in order to:
detect the larger water droplets
transmit at a higher pulse repetition frequency for extended range
obtain optimum use of the Cosecant squared beam
A frequency of 10 GHz is considered to be the optimum for use in an airborne weather radar system because:
the larger water droplets will give good echoes and the antenna can be kept relatively small
greater detail can be obtained at the more distant ranges of the smaller water droplets
static interference is minimised
Which of the following is a complete list of airborne weather radar antenna stabilisation axes?
roll, pitch and yaw
roll and pitch
pitch and yaw
In an Airborne Weather Radar that has a colour cathode ray tube (CRT) increasing severity of rain and turbulence is generally shown by a change of colour from:
green to yellow to red
yellow to amber to blue
green to red to black
In general the operation of airborne weather radar equipment on the ground is:
permitted anywhere
only permitted with certain precautions, to safeguard health of personnel and to protect equipment
totally prohibited
A frequency of airborne weather radar is:
9375 MHz
9375 GHz
9375 kHz
In Airborne Weather Radar (AWR), the main factors which determine whether a cloud will be detected are:
size of the water drops; wavelength/frequency used
range from cloud; wavelength/frequency used
size of the water drops; diameter of radar scanner
Which of the following lists phenomena that CANNOT be detected by weather radar?
dry hail; clear air turbulence
Dry air turbulence
clear air turbulence; turbulence in cloud with precipitation
Which of the following lists phenomena that CANNOT be detected by weather radar?
dry hail; clear air turbulence
Dry air turbulence
clear air turbulence; turbulence in cloud with precipitation
Airborne weather radar uses a particularly high frequency radar signal, at 9 – 12 GHz, in order to
Get the most accurate range and bearing information
Get good returns from droplets of water and other sorts of precipitation
Making it possible to present a colour display of the weather situation
On the airborne weather radar display, different colours are used
To display different intensity of precipitation
High ground
Echoes from other aircraft
You want to use your airborne weather radar to detect areas with turbulence. Consider the following statements:
If you are flying at low altitude, the detection of turbulence at levels below the aircraft may difficult because of ground returns
You should select the cosec beam and carefully adjust the aerial tilt
Using the cosec beam, the height of top of clouds, with possible turbulence, may be calculated using the 1 : 60 rule.
Using the airborne weather radar on ground:
The contrast control should be adjusted to maximum contrast
operation of radar should not take place while the radar is pointed toward a building or when refueling takes place.
The antenna tilt control should be set to max negative tilt
The ground Secondary Surveillance Radar (SSR) equipment incorporates a transmitter and receiver respectively operating in the following frequencies: Transmitter Receiver
1090 MHz 1090 MHz
1090 MHz 1030 MHz
1030 MHz 1090 MHz
Why is a secondary radar display screen free of storm clutter?
The principle of 'echo' return is not used in secondary radar
The frequencies employed are too high to give returns from moisture sources
A moving target indicator facility suppresses the display of static or near static returns
In order to indicate radio failure the aircraft SSR transponder should be selected to code:
7000
7700
7600
In order to indicate unlawful interference with the planned operation of the flight, the aircraft Secondary Surveillance Radar (SSR) transponder should be selected to:
7600
7500
7700
The two main design functions of Secondary Surveillance Radar (SSR) Mode S are:
collision avoidance using TCAS II and improved long range (HF) communication capability.
continuous automatic position reporting using Global Positioning System (GPS) satellites and collision avoidance using TCAS II
air to ground and ground to air data link communications and improved ATC aircraft surveillance capability
The code transmitted by a SSR transponder consists of:
phase differences
pulses
frequency differences
Which of the following Secondary Surveillance Radar (SSR) codes is used to indicate transponder malfunction?
7600
0000
4096
What is the maximum number of usable Secondary Surveillance Radar (SSR) transponder codes?
4096
3600
1000
The frequencies used by SSRs are
Interrogations are transmitted on 1030 MHz and transponder responses are transmitted on 1090 MHz
Interrogations are transmitted on 1030 MHz and transponder responses are transmitted on 1030 MHz
Interrogations are transmitted on 1090 MHz and transponder responses are transmitted on 1090 MHz
What SSR modes are currently in use by ATC?
Mode C and Mode D
Mode A and Mode B
Mode A and Mode C
The transponder code set in an SSR system consists of
2 digits and 2 letters, forming any of 4096 different codes
4 digits, forming any of 9999 different codes
4 digits, forming any of 4096 different codes
When the ATC transponder "IDENT" button is pressed by the pilot
The airplane's identification will be sent to all SSRs within range
The airplane's echo on the controller's display will flash or "fill in"
M
When both SSR and primary radar is presented on the controller's display
The SSR information is more accurate in bearing and distance
The primary radar information is superfluous
The primary radar information is more accurate in bearing and distance
The components of an ILS are.
a localizer and the marker beacons.
a localizer, a glide slope and the marker beacons.
a localizer and a glide slope.
In ILS, the glideslope provides.
distance checks.
vertical steering.
lateral steering
What modulation is used for the beams of a localiser in an ILS?
90 Hz below the glide path, 150 Hz above the glide path.
150 Hz right of runway centerline, 90 Hz left of runway centreline.
150 Hz left of runway centerline, 90 Hz right of runway centreline.
Radio altimeter is used primarily during instrument approach and low level or night flight below
2500 feet.
3500 feet
500 feet
a radio altimeter broadcasts a carrier wave at
137 MHz from the aircraft directly toward the ground
4.3 GHz from the aircraft directly toward the ground
1750 KHz from the aircraft directly toward the ground
GPWS will show a fault if the following fails:
Air speed indicator.
Pressure altimeter.
Radio altimeter
What manoeuvre does TCAS II advise the pilot to make?
TA.
RA.
either RA or TA.
What are the shapes of traffic shown on a TCAS display?
White circles, red diamonds and amber squares.
White squares, red diamonds and amber circles.
White diamonds, red squares and amber circles.
An R.M.I in VOR mode, its pointer is showing a course of 000. If the course knob is adjusted to 010 what happens to the pointer?.
Moves left then hard right.
Move left.
Move right.
Track mode of an Radio Altimeter is operational.
above 10,000 feet.
from 1.0 to 100 feet.
from 0 to 2,500 feet.
A decision height window (DH) displays:
the radar altitude
The pressure altitude
The height from sea level
How many aerials are there in a T.C.A.S system?.
1.
2.
3.
Differential G.P.S requires.
4 satellites and 2 ground based transmitters.
3 satellites and two ground based transmitters.
4 satellites and 1 ground based transmitter.
The TCAS (Traffic Collision Avoidance System) is a proximity alarm system which detects a "traffic" when the conflicting traffic is equipped with a :
SELCAL system
serviceable weather radar
serviceable SSR transponder
The TCAS 1 (Traffic Collision Avoidance System) provides : 1- traffic information 2- horizontal resolution (RA: Resolution Advisory) 3- vertical resolution (RA: Resolution Advisory) 4- ground proximity warning The combination regrouping all the correct statements is:
1
1, 2, 3
1, 2, 3, 4
The use of the TCAS (Traffic Collision Avoidance System) for avoiding an aircraft in flight is now general. TCAS uses for its operation:
the echos of collision avoidance radar system especially installed on board
the echos from the ground air traffic control radar system
the replies from the transponders of other aircraft
Concerning the TCAS (Traffic Collision Avoidance System) :
In one of the system modes, the warning: "TOO LOW TERRAIN" is generated
No protection is available against aircraft not equipped with a serviceable SSR transponder
In one of the system modes, the warning: "PULL UP" is generated
