What is the function of the Mode Select Unit (MSU) in the IRS?

Controls the mode of operation of the IRS

How is the software loaded onto the Cabin Mass Memory System components?

From the OBRM to different CIDS components

How do fly-by-wire systems respond to changing aerodynamic conditions?

By adapting flight control surface movements

What does TCAS stand for?

Traffic Alert Collision Avoidance System

What is the purpose of Built-In Test Equipment (BITE) in fly-by-wire systems?

To perform pre-flight safety checks automatically

What happens in the event of a complete failure of all flight-control computers in a fly-by-wire system?

The aircraft must be flown using the trim wheel

What data can be derived from GPS by analyzing the change in position over time?

Actual track, ground speed, and drift angle

What is the main function of Core Processing Input/Output Modules (CPIOMs) in IMA architecture?

To communicate with the Avionics Data Communications Network (ADCN)

What is the purpose of the Database Loading in the Flight Management System?

To update the navigational and operational databases every 28 days

What is the purpose of the Cabin Management Terminal (CMT) in an aircraft cabin?

Control and monitor entertainment system

What is the purpose of the Ident Plug in the ACARS system?

To provide aircraft registration and airline code information

What is the purpose of the Area Call Panels (ACP) in the aircraft cabin?

Inform the crew of calls from passengers

What is the purpose of the Multi-Purpose Interactive Display Unit (MPIDU) in the ACARS system?

To display messages, reports, and communication requests to the crew

What is the purpose of the Air Traffic Information and Management System (ATIMS)?

To provide data link communication between aircraft and ground

How does IMA differ from traditional federated avionics systems?

IMA allows subsystems to share resources and increase utilization

How does the Controller-Pilot Data Link Communications (CPDLC) system benefit air traffic control?

By providing an alternative to voice communication

What is the purpose of the ATC Clearances Service (ACL) in aviation?

To issue ATC clearances and various requests for information

What does the source controller allow the crew to select for display on the EFIS?

Heading and navigational information

What is the purpose of the Warning Light Display Unit (WLDP)?

To serve as a backup to the ECAM display system

How does the IMA architecture differ from traditional federated avionics systems?

Applications are housed in Line Replaceable Modules (LRM) in IMA

What happens when a failure is detected in the ACARS system during monitoring or BITE tests?

The MU displays a red 'MU FAIL' or 'Control Unit FAIL' indication

What is the function of Potentiometers in the fly-by-wire control system?

Sending a signal back to the computer to report actuator position

What components make up the Autothrottle (A/T) system?

Autothrottle computer and two servo actuators

What is the purpose of the CDU in the Flight Management System?

To manually insert system control parameters and select modes of operation

How does the ECAM system handle failures detected by the flight warning computers?

Generates relevant messages and displays them on the upper display unit

How are failures classified in the ECAM system?

Independent Failures, Primary Failures, Secondary Failures

What does the RCL switch on the ECAM control panel enable?

Recall previously cleared warning messages

How does the Air Traffic Services Facilities Notification (AFN) application benefit the ATC system?

It establishes a data link connection between aircraft and ground stations

How does GPS measure distance between satellites and a receiver on an aircraft?

By calculating the time it takes for a signal to travel

What is the purpose of the Data Link Initiation Capability (DLIC) in aviation?

To initiate data link communication between ATC and the pilot

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106 termsStudBud Administration1 play

Test your knowledge on Traffic Collision Avoidance Systems (TCAS) used in aviation for collision avoidance between aircraft

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Questions 106

Answers

1
What is the function of the Mode Select Unit (MSU) in the IRS?
Controls the aircraft's engines
Controls the landing gear
Controls the mode of operation of the IRS
Controls the cabin temperature
2
Who developed ACARS in 1978 as a digital data link for sending short text messages between aircraft and ground stations?
Lockheed Martin
Boeing
ARINC
Airbus
3
How is the software loaded onto the Cabin Mass Memory System components?
Via the DLCS
From the OBRM to different CIDS components
Using the FAP
Through the OBRM
4
Fly-by-wire systems reduce mechanical connections for lighter aircraft.
True
False
5
How do fly-by-wire systems respond to changing aerodynamic conditions?
By adapting flight control surface movements
By decreasing the altitude of the aircraft
By activating the autopilot system
By increasing the aircraft's speed
6
What does TCAS stand for?
Traffic Alert Control System
Traffic Alert Collision Avoidance System
Traffic Control Alert System
Traffic Collision Advisory System
7
What is the purpose of Built-In Test Equipment (BITE) in fly-by-wire systems?
To monitor the fuel consumption of the aircraft
To perform pre-flight safety checks automatically
To adjust the aircraft's altitude mid-flight
To control the aircraft's speed during flight
8
What happens in the event of a complete failure of all flight-control computers in a fly-by-wire system?
The aircraft switches to mechanical control systems
The aircraft enters autopilot mode
The aircraft performs an emergency landing
The aircraft must be flown using the trim wheel
9
What is the role of TCAS antennas?
Guide landing
Transmit and receive signals
Control aircraft speed
Monitor weather
10
What do Level A warnings in the EICAS system require?
Immediate corrective action
Crew awareness
Maintenance troubleshooting
System self-test
11
What is the frequency on which ACARS operates using the VHF 3 communications system?
120.30 MHz
131.55 MHz
100.00 MHz
150.75 MHz
12
What data can be derived from GPS by analyzing the change in position over time?
Satellite altitude and speed
Actual track, ground speed, and drift angle
Ionospheric propagation errors
Military encryption codes
13
What is the main function of Core Processing Input/Output Modules (CPIOMs) in IMA architecture?
To communicate with the Avionics Data Communications Network (ADCN)
To control the aircraft's flight controls
To display information in a common format
To provide power supply to the aircraft
14
What is the purpose of the Database Loading in the Flight Management System?
To transmit pilot input signals as serial digital data
To update the navigational and operational databases every 28 days
To provide rapid system health checks
To display flight plan and advisory data
15
What is the purpose of the Cabin Management Terminal (CMT) in an aircraft cabin?
Control cabin lighting
Monitor passenger calls
Manage emergency evacuations
Control and monitor entertainment system
16
What is displayed above the radio altimeter height information?
Outer Marker - Blue
Middle Marker - Amber
Top Marker - Red
Inner Marker - White
17
What is the purpose of the Ident Plug in the ACARS system?
To print messages
To display messages
To provide aircraft registration and airline code information
To code messages for VHF Comms
18
Which TCAS type offers resolution advisories?
TCAS II
None
TCAS I
TCAS III
19
What is the purpose of the Area Call Panels (ACP) in the aircraft cabin?
Monitor emergency evacuation procedures
Inform the crew of calls from passengers
Manage in-flight entertainment
Control cabin lighting
20
Which component of ACARS is responsible for converting data from and to the VHF-COMM?
Ident plug
Thermal printer
Program pins
Management Unit (MU)
21
What does TCAS I announce during a threat?
Climb, climb
Traffic, traffic
Clear of conflict
Descend, descend
22
What is the purpose of the Multi-Purpose Interactive Display Unit (MPIDU) in the ACARS system?
To print messages
To display messages, reports, and communication requests to the crew
To interface with the ACARS system
To manage incoming messages
23
What is the purpose of the Air Traffic Information and Management System (ATIMS)?
To control the aircraft's speed
To schedule flight crew shifts
To manage in-flight entertainment systems
To provide data link communication between aircraft and ground
24
How does IMA differ from traditional federated avionics systems?
Traditional systems use a high-speed data network
Traditional systems are more lightweight
IMA allows subsystems to share resources and increase utilization
IMA requires long cable runs for interconnecting distant LRUs
25
How does the Controller-Pilot Data Link Communications (CPDLC) system benefit air traffic control?
By broadcasting weather conditions to pilots
By managing runway conditions
By providing an alternative to voice communication
By controlling the aircraft's speed
26
What is the purpose of the ATC Clearances Service (ACL) in aviation?
To manage runway conditions
To broadcast weather conditions to pilots
To issue ATC clearances and various requests for information
To control the aircraft's altitude
27
How do computers in fly-by-wire systems communicate with each other?
Through mechanical connections
By using redundant flight computers
Via the ARINC 429 data bus
By sending signals to the control surface actuators
28
What does the source controller allow the crew to select for display on the EFIS?
Ground speed
Drift angle bug
Heading and navigational information
Time-to-go
29
What is the purpose of the Warning Light Display Unit (WLDP)?
To serve as a backup to the ECAM display system
To control the aircraft's landing gear
To communicate with air traffic control
To display the aircraft's speed
30
What does the Engine Display Switch in the EICAS system control?
Display brightness
Event recording
Secondary information display
Thrust reference setting
31
Which TCAS type is used in commercial aircraft?
TCAS II
TCAS III
All types
TCAS I
32
What is the basis for civilian GPS use in terms of signal modulation?
Coarse/Acquisition (C/A) mode
Precision (P) mode
Satellite altitude measurement
Military encryption code
33
How does the IMA architecture differ from traditional federated avionics systems?
LRUs are interconnected in IMA
Applications are housed in Line Replaceable Modules (LRM) in IMA
Applications are separate in traditional systems
LRUs are separate in traditional systems
34
How are failures classified in the ECAM system?
Primary, Secondary, Independent
Level 1, Level 2, Level 3
Emergency, Abnormal, Monitoring
Manual, Automatic, Advisory
35
What happens when a failure is detected in the ACARS system during monitoring or BITE tests?
The system shuts down immediately
The system switches to a backup mode automatically
The MU microprocessor provides operational control and computations
The MU displays a red 'MU FAIL' or 'Control Unit FAIL' indication
36
How many TCAS types are there?
Five
Four
Three
Two
37
What is the function of Potentiometers in the fly-by-wire control system?
Detecting movement changes in the pitch, roll, and yaw axes
Sending a signal back to the computer to report actuator position
Moving the control surface actuator
Adapting flight control surface movements
38
What components make up the Autothrottle (A/T) system?
Autothrottle computer and two servo actuators
Flight Management Computer and Digital Flight Control System
Inertial System Display Unit and Mode Select Unit
Inertial Reference Units and Digital Analogue Adapters
39
What is the purpose of the CDU in the Flight Management System?
To manually insert system control parameters and select modes of operation
To adjust cabin temperature
To control the aircraft's engines
To provide in-flight entertainment for passengers
40
What does the Mode Select Unit (MSU) control in the IRS?
Mode of operation
Keyboard input
Inertial sensor assembly
Display brightness
41
How does the ECAM system handle failures detected by the flight warning computers?
Initiates a manual system reboot
Activates the emergency landing procedure
Generates relevant messages and displays them on the upper display unit
Shuts down the entire aircraft system
42
How are failures classified in the ECAM system?
Independent Failures, Primary Failures, Secondary Failures
Red Failures, Amber Failures, Green Failures
Emergency Failures, Advisory Failures, Manual Failures
Critical Failures, Minor Failures, Major Failures
43
The Flight Management System (FMS) is responsible for aircraft navigation.
False
True
44
What does the RCL switch on the ECAM control panel enable?
Recall previously cleared warning messages
Clear warning presentations
Manually select system displays
Display aircraft status message
45
How does the Air Traffic Services Facilities Notification (AFN) application benefit the ATC system?
It monitors cabin temperature and air pressure
It establishes a data link connection between aircraft and ground stations
It controls the aircraft's navigation systems
It coordinates flight schedules
46
How does GPS measure distance between satellites and a receiver on an aircraft?
By analyzing the color of the signal
By calculating the time it takes for a signal to travel
By counting the number of satellites in view
By measuring the weight of the signal
47
What is the purpose of the Data Link Initiation Capability (DLIC) in aviation?
To broadcast weather conditions to pilots
To manage runway conditions
To initiate data link communication between ATC and the pilot
To control the aircraft's altitude
48
Which TCAS type provides horizontal advisories?
None
TCAS II
TCAS I
TCAS III
49
What does TCAS BITE test indicate?
Flight path
Weather conditions
System status
Fuel level
50
What type of information is displayed in the Status Mode of the EICAS system?
Dispatch readiness data
Engine operating information
Maintenance alerts
Flight control positions
51
In which mode does the ACARS only operate when interrogated by the ground facility?
Automatic mode
Demand mode
Manual mode
Polled mode
52
What does the composite display show in case of a display unit failure on the EFIS?
A glide slope deviation
A full compass rose
Combined elements of both EADI and EHSI displays
A miniature rising runway
53
True or false: TCAS III is widely used
False
True
54
How is the software loaded onto the Cabin Mass Memory System components in an aircraft?
Via satellite communication
Through a two-step process involving OBRM and FAP
Through the Cabin Assignment Module (CAM)
Using a USB drive
55
What is the purpose of the Maintenance Mode in the EICAS system?
To display dispatch readiness data
To assist with troubleshooting and verification testing
To provide alerts for immediate crew action
To show engine operating information
56
What does the CLR switch on the ECAM control panel do?
Turn off the engine
Adjust the cabin temperature
Clear warning presentations from the display
Activate the landing gear
57
Integrated Modular Avionics reduces weight and maintenance costs.
False
True
58
What type of information is displayed in the Operational Mode of the EICAS system?
Maintenance engineer data
Engine operating information and alerts requiring crew action
Flight control surface positions
Dispatch readiness details
59
How many levels of alert messages are there in the EICAS system?
4
1
3
2
60
What does the ECS/MSG switch in the EICAS system display?
Performance of main engines
Primary engine information
Engine parameters exceeded
Maintenance messages
61
In what situation does the STS switch on the ECAM control panel illuminate white?
When the aircraft is in cruise mode
When a failure is detected by the flight warning computers
When manual selection of an aircraft status message is permitted
When the landing gear is deployed
62
What are the main advantages of Integrated Modular Avionics (IMA)?
IMA modules are Commercial Off the Shelf (COTS) components
They involve more components than their predecessors
LRM are not interchangeable
They are heavier than traditional avionics systems
63
In which mode is data related to the dispatch readiness of an aircraft displayed in the EICAS system?
Operational Mode
Maintenance Control Panel
Maintenance Mode
Status Mode
64
Which switch is used to erase data stored in the EICAS system's memories?
Record Switch
Erase Switch
Test Switch
Event Read Switch
65
What does TCAS BITE test display?
Weather data
Fuel level
Traffic symbols
Altitude
66
How does the Boeing centralised IMA differ from the Airbus Distributed IMA (DIMA)?
Airbus uses a cabinet of general processing modules
Airbus connects to an ARINC 664 ethernet data bus with encryption
Boeing uses a centralised cabinet IMA, while Airbus has a Distributed IMA
Boeing co-locates computing resources within the I/O modules
67
What is the purpose of the Automatic Dependent Surveillance (ADS) function in aviation?
To send situation information to the ATC ground station
To control the aircraft's altitude
To manage runway conditions
To broadcast weather conditions to pilots
68
How does the Automatic Dependent Surveillance-Addressed (ADS-A) function benefit air traffic control?
By controlling the aircraft's altitude
By transmitting the position of the aircraft to ATC listening stations
By broadcasting weather conditions to pilots
By managing runway conditions
69
What does the rising runway display above the terrain at 60 metres (200 feet)?
Ground speed information
Time-to-go indication
Absolute altitude reference
Relative altitude reference
70
Which unit deals with passenger-related functions like cabin lighting and PSU on Airbus aircraft?
DEU A
FAP
CAM
DEU B
71
What is the main function of the DEU B unit on Airbus aircraft?
Monitor passenger calls
Handle cabin crew-related functions like ACP and AIP
Manage emergency evacuations
Control passenger lighting
72
What is the main function of the Inertial Reference Unit (IRU) in the IRS?
To serve as a coffee maker
To provide in-flight entertainment
To measure acceleration and angular rates of the aircraft
To control the aircraft's navigation
73
The Airbus information system is known as Onboard Information System (OIS).
True
False
74
What does TCAS II announce for vertical speed?
Increase altitude
Maintain speed
Decrease altitude
Adjust vertical speed
75
How often must the FMC database be updated in the aircraft?
Every 3 months
Every 7 days
Every 28 days
Every 6 months
76
Fly-by-wire systems increase mechanical connections between cockpit and control surfaces.
False
True
77
Where is the Control Display Unit (CDU) located in the aircraft?
In the galley
In the lavatory
In the cargo hold
In the flight deck, on the aisle stand, within easy reach of both pilots
78
What components make up the Global Navigation System GNS-X for aircraft navigation management?
Control Display Unit, Global Positioning Sensor, and navigation data base
Alpha-numeric keys, function keys, and a configuration module
Analogue inputs and digital inputs
Flat panel LCD display, GPS, and navigation data base
79
What is the purpose of the Data-Link Automatic Terminal Information Service (D-ATIS) in aviation?
To control air traffic tower operations
To manage airport parking facilities
To regulate aircraft fuel prices
To provide ATIS information directly on the cockpit screen
80
What is the main purpose of TCAS?
Control air traffic
Guide aircraft landing
Monitor weather conditions
Detect intruder aircraft
81
What is the TCAS computer's location?
Cargo hold
Cockpit
Avionics compartment
Engine room
82
What does TCAS II suggest during a threat?
Change vertical speed
Land immediately
Change horizontal speed
Contact ATC
83
What is the basis for civilian GPS use in terms of signal modulation?
Military encryption modulation
L1 carrier modulation
P code modulation
L2 carrier modulation
84
The Inertial Navigation System (INS) is the only source for all navigation data.
False
True
85
What is the purpose of the Event Record Switch in the EICAS system?
To store real-time maintenance data
To activate the recording of fault data
To display maintenance data
To erase data stored in memories
86
How do Pitch Axis control systems in aircraft function in a fly-by-wire system?
Using electrical control for elevator and stabiliser
Using manual control for speed brakes and hand wheels
Using mechanical control for aileron and spoiler
Using hydraulic control for rudder and trim
87
What does the aircraft symbol provide on the Full-time EHSI display?
A quick visual cue of the aircraft's position
Ground speed information
Selected heading
Weather radar display
88
EICAS is only used in Airbus aircraft.
True
False
89
How do Pitch Axis control systems in aircraft function in a fly-by-wire system?
SECs take over control of the elevators in alternate control law
Direct Law translates side stick controller movement into elevator movement
ELACs control the aircraft in pitch in normal control law
Mechanical pitch back up is used in case of complete failure
90
How do fly-by-wire systems ensure safety in case of computer failure?
By increasing the speed of the aircraft
By incorporating redundant computers and backup systems
By reducing the number of flight control computers
By implementing mixed control systems
91
What is the function of the Area Distribution Units (ADU) in the Cabin Video Monitoring System (CVMS)?
Manage cabin lighting
Handle emergency evacuations
Monitor passenger calls
Control multiple cameras
92
What is the purpose of the Built-In Test Equipment (BITE) in the Flight Management System?
To provide in-flight entertainment for passengers
To control the aircraft's engines
To detect and store system fault data during normal operation
To adjust cabin temperature
93
What is the purpose of the Cabin Assignment Module (CAM)?
Control cabin lighting
Monitor passenger calls
Manage in-flight entertainment
Define cabin layout and zoning
94
What frequency does TCAS transmit on?
1030 MHz
1000 MHz
1090 MHz
1050 MHz
95
What does the Display Selector Switch (DSPL SEL) in the IRS allow the operator to select?
Wind direction and speed
Track angle and ground speed
Present position and heading data
Heading or alignment status
96
How does the Airbus Distributed IMA (DIMA) differ from the Boeing centralised IMA in terms of architecture?
DIMA does not have a centralised cabinet, while Boeing does
DIMA uses a cabinet of computer general processing modules
Boeing uses smart I/O modules called CPIOMs
Boeing centralised IMA co-locates computing resources within I/O modules
97
The Cabin Core System on Boeing 787 uses the Cabin Intercommunication Data System (CIDS).
True
False
98
What is the main concept behind Integrated Modular Avionics (IMA)?
Adding more weight to the aircraft
Increasing the number of Line Replaceable Units (LRUs)
Reducing maintenance savings
Replacing numerous separate processors with fewer centralised units
99
What components make up the Inertial Reference System (IRS) in the Flight Management System?
Mode Select Unit (MSU)
Digital Analogue Adapters (DAA)
Autothrottle computer
Two Inertial Reference Units (IRU)
100
How does GPS determine the position of an object using multiple satellites?
By measuring the altitude of the object
By calculating the object's radius from a single satellite
By trilaterating the intersection of LOPs from three satellites
By encrypting the signals from the satellites
101
What does the 'TEST' switch in the EICAS system initiate?
A data erasure process
A self-test of the whole system
A maintenance mode display
An event record retrieval
102
What is the purpose of Core Processing Input/Output Modules (CPIOMs) in IMA architecture?
To increase the weight of the aircraft
To reduce the number of applications hosted on the same avionics resource
To limit the communication between different systems
To provide centralised data processing, memory storage, and communication
103
ECAM is only used in Boeing cockpits.
True
False
104
What does the EHSI display in relation to the navigation aids around the aircraft?
Time-to-go
Ground speed
Compass heading
Elapsed time or wind
105
What is the purpose of Distributed Input/Output (I/O) devices in Integrated Modular Avionics (IMA) architecture?
To provide generic computing resources
To allow multiple applications to be hosted on the same avionics resource
To consolidate inputs from the aircraft's systems and sensors
To handle data input and output for various systems
106
How does GPS correct ionospheric propagation errors in satellite transmissions?
By adjusting the speed of light in transmissions
By measuring the phase shift between two UHF frequencies
By encrypting the signals
By increasing the frequency of satellite transmissions

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